










                            Screen Power Integrated


                     Installation & Troubleshooting Guide





Copyright   1994 by TeleSensory Corporation. This manual and the software 
described in it are copyrighted with all rights reserved worldwide. No part of 
this manual or the software may be copied without written consent from 
TeleSensory Corporation. All brand and product names are trademarks or 
registered trademarks of their respective holders. 

TeleSensory License Agreement

TeleSensory Corporation (TeleSensory) retains the ownership of the enclosed 
software programs. These programs are licensed to you for use under the 
following conditions:

You May:    Use the software in either or both 3.5" or 5.25" media, provided 
            you use the software on only one computer at a time.

            Permanently transfer the software to another user if you transfer 
            the documentation and all disks and the other user agrees to the 
            terms and conditions of this agreement.

You May Not:Make copies of the documentation or program disks, except as 
            described in the documentation and for archival purposes.

            Loan, rent, sub-license, or otherwise transfer the software (in 
            either media) or the documentation, except as provided above.

            Alter, modify, or adapt the software or documentation, including, 
            but not limited to, translating, decompiling, or disassembling.

This license and your right to use the software automatically terminate if you 
fail to comply with any provision of this license agreement. Upon termination, 
you will destroy all documentation and disks.

Federal Communication Commission Radio Frequency Interference Statement

This equipment generates and uses radio frequency energy and if not installed 
and used properly, that is, in strict accordance with the manufacturer's 
instructions, may cause interference to radio and television reception. Any 
unauthorized modification to this equipment could result in the revocation of 
your authority to operate the equipment.

It has been type tested and found to comply with the limits for a Class B 
computing device in accordance with the specifications in Subpart J of Part 15 
of FCC Rules, which are designed to provide reasonable protection against such 
interference in a residential installation. However, there is no guarantee 
that interference will not occur in a particular installation. If this 
equipment does cause interference to radio or television reception, which can 
be determined by turning the equipment off and on, the user is encouraged to 
try to correct the interference by one or more of the following measures:

      Reorient the receiving antenna
      Relocate the computer with respect to the receiver
      Move the computer away from the receiver
      Plug the computer into a different outlet so that computer and receiver 
      are on different branch circuits.

If necessary, the user should consult the dealer or an experienced 
radio/television technician for additional suggestions. The user may find the 
following booklet prepared by the Federal Communications Commission helpful: 
"How to Identify and Resolve Radio-TV Interference Problems." This book is 
available from the U.S. Government Printing Office, Washington, D.C. 20402, 
Stock No. 004-000-00345-4.

This product was tested for FCC compliance under conditions that included the 
use of shielded cables and connectors between system components. It is 
important that you use shielded cables and connectors to reduce the 
possibility of causing interference to radios, television sets, and other 
electronic devices. You can obtain the proper shielded cables from TeleSensory 
Corporation.











455 North Bernardo Avenue, P.O. Box 7455, Mountain View, CA 94039-7455
Telephone: 415-960-0920, Telex: 278838 TSI UR, Fax: 415-969-9064
Toll free in U.S.: 1-800-227-8418, Technical Support: 1-800-537-3961

Print Manual Part Number: PB17409A 03/94





                                                             Table Of Contents


How to Use This Manual                                           1
      Welcome!.................................................  1
      Manual Organization......................................  1
      What's In the Package?...................................  2
            The PowerBraille 40 Hardware/Software Package......  3
            Navigator Upgrade Package..........................  4
      Typographical Conventions................................  4
      Customer Support.........................................  4

Quick Start Guide                                                7

Chapter 1: Installation                                          9
      PowerBraille 40 Hardware Description.....................  9
            Battery Usage Status Displays.....................  10
      PowerBraille 40 Hardware Setup..........................  11
      Synthesizer Installation................................  11
            DECtalk PC Board Hardware Installation............  12
            Pulse Data External Hardware Installation.........  14
      Screen Power Software Installation......................  14
            Using View2 Grade 2 Translator....................  15
            Using Extended or Expanded Memory.................  15
            Other Command Line Options........................  17
            Using the Prose (Vert) Board with Screen Power....  18
            Using BrailleMate as a Synthesizer for Screen Power  18
            Using the Installation Program....................  18
            Congratulations!..................................  22
      Starting Screen Power...................................  22
      Installing Manual Files.................................  23
      Using Screen Power with Other TeleSensory Products......  23
            Using Screen Power With OsCaR.....................  23
      Using Screen Power With Other TSRs......................  23

Chapter 2: Technical Information                                25
      DECtalk PC Board Hardware & Software Settings...........  25
            DECtalk PC Board Hardware Settings................  25
            Default Hardware Settings.........................  25
            Changing Hardware Settings........................  26
            DECtalk SP.BAT File...............................  27
            Changing Software Settings: DECtalk Utilities.....  28
      External Pulse Data Hardware & Software Settings........  32
            Pulse Data Hardware Settings......................  32
            Pulse Data SP.BAT File............................  32
      Specifications for PowerBraille 40 I/O Ports............  33


      PowerBraille 40 Self-tests..............................  33
            Braille Cells Test................................  33
            Keypad Test.......................................  34
            Sensor Switches Test..............................  34
      Removing and Charging the Battery.......................  34
      Trouble-shooting Information............................  35

Appendix A: Screen Power Utilities                              41
            SPIREAD.COM.......................................  41
            SPICOLOR.EXE......................................  42
            SPIPORT.EXE.......................................  42

Appendix B: Warranty Information                                45
      Software Warranty.......................................  45
      Limited One Year Warranty on Hardware...................  45
      Disk Replacement Policy.................................  46







                                                        How to Use This Manual



Welcome!

Welcome to Screen Power, TeleSensory's new integrated braille and speech 
access software.  Screen Power has many advantages over other access software.  
It is menu driven, so it is easy to learn.  Even computer beginners will be 
able to understand Screen Power's menu system.  And the on-line help system 
makes it possible to learn more about Screen Power on your own.

You can run all of Screen Power's functions and commands from the menu system.  
But that doesn't mean Screen Power is limited by the menu system.  Screen 
Power has a full set of built-in commands to do just about anything you need 
to do.  Use the menu system to change or add to these commands.  

Screen Power has many features that make it possible to customize commands and 
functions.  You can turn almost any menu function into a single keystroke or 
command using Screen Power's hotkeys.  Screen Power has sophisticated 
windowing and monitoring features that let you tailor the system to your 
application program.  The monitoring system looks for designated screen 
changes.  When they occur, you will automatically know and will therefore be 
able to respond appropriately and efficiently.  Our pre-set WordPerfect and 
Lotus 1-2-3 environments make working with these programs easy and efficient.  

Screen Power's integrated macros system is one of its most powerful features.  
Macros enable you to turn groups of commands into a single keystroke.  Screen 
Power macros can combine Screen Power commands, application program commands, 
and DOS commands to automate your computing functions to suit your needs.  


Manual Organization

Screen Power documentation is divided into four parts:

  Installation & Troubleshooting Guide: (this document) includes all 
  installation information, including a Quick Start Guide and a 
  Troubleshooting section.  Use the Installation Guide to install your Screen 
  Power system, including hardware and software.  This document is available 
  in print, in braille, on disk, and on audio tape.  

  User Guide: is a step-by-step guide through Screen Power's features.  Use 
  the User Guide to learn about Screen Power.  It begins with basic concepts, 
  such as how to use navigation commands.  It continues with intermediate and 
  advanced usage, including how to use the menu system, how to create hotkeys, 
  windows and monitors, and how to


  use the macros and form processing features.  Each concept includes 
  step-by-step, hands-on examples.  This document is available in print, in 
  braille, on disk, and on audio tape.

  Menu Reference Guide: is an alphabetical guide to every Screen Power menu 
  item and concept.  Use the Reference Guide as you would a dictionary or 
  encyclopedia.  Every item is explained fully, including where it appears, 
  what its options are, what the defaults are, and how it is used.  This 
  document is included in print, on disk, and in braille.

  Command Summary: contains all Screen Power speech and braille commands, 
  including commands for both the PowerBraille 40 hardware and Navigator 
  hardware.  This document is included in print, on disk, and in braille.

You should also refer to the README.TXT file on your Screen Power diskette.  
This file contains last-minute changes or additions to the product that may 
not be included in the rest of the documentation.  

You can use the SPIREAD.COM utility to read these documents on disk.  Each 
document file has a .TXT extension.  The four document files are:

  INSTALL.TXT           Installation & Troubleshooting Guide (this document)
  USERGDE.TXT           User Guide
  MENUREF.TXT           Menu Reference Guide
  CMMDSUM.TXT           Command Summary

Type SPIREAD followed by the filename.  For example, to read the disk file for 
the Installation Guide, type SPIREAD INSTALL.TXT.  For complete information 
about the SPIREAD utility, please refer to Appendix A of this document.


What's In the Package?

This product comes in several configurations: the PowerBraille 40 hardware and 
software package, and the software-only upgrade for the Navigator hardware.  
You can also get packages with or without a synthesizer.  The Screen Power 
software has the same features in all packages.  Screen Power will give you 
access to the screen information displayed by an IBM or IBM compatible 
computer.  

Note: If you did not order a Screen Power model that includes a synthesizer, 
      you should obtain a synthesizer on your own.  The Screen Power software 
      will not work without a synthesizer.  Call TeleSensory's Customer 
      Service department at (800) 227-8418 or (from outside North America) 
      (415) 960-0920 for a list of compatible synthesizers.  



If you are missing any of the items listed below, or if your shipment seems 
damaged in any way, call TeleSensory's Customer Service Department at (800) 
227-8418.  Outside North America, call (415) 960-0920.


The PowerBraille 40 Hardware/Software Package

The PowerBraille 40 system includes a refreshable braille hardware unit and 
Screen Power Integrated software.  Your PowerBraille 40 system package should 
contain:

      The PowerBraille 40 refreshable braille hardware unit with Velcro strips 
      to hold a laptop computer or keyboard in place

      PowerBraille 40 power supply

      Interface cables:
         Parallel cable (straight-through connection)
         9- to 9-pin serial cable (straight-through connection)

      The Screen Power Integrated software, in a protective sleeve at the rear 
      of this manual:
         Two 3-1/2-inch low-density Program diskettes (only one diskette if 
         you ordered Screen Power with the Pulse Data synthesizer) and one 
         3-1/2-inch Manual diskette
         One 5-1/4-inch high-density Program diskette and one 5-1/4-inch 
         Manual diskette

      User documentation, including:
         This Installation & Troubleshooting Guide (includes Quick Start 
         Guide), in print and on disk
         User Guide, in print and on disk
         Reference Guide, in print and on disk
         Command Summary, in print and on disk
         A choice of the above 4 pieces in either braille or audio tape
         Tutorial, on audio tape

If you ordered a Screen Power model that includes a synthesizer, your package 
will also contain:

      A box containing the synthesizer, either a DECtalk PC internal 
      synthesizer board or a Pulse Data external synthesizer

      Headphones

      The synthesizer speaker (comes only with the DECtalk PC synthesizer; 
      Pulse Data has a built-in speaker)



      Interface cables and power charger (comes only with the Pulse Data 
      synthesizer)
         9- to 9-pin interface cable
         9- to 25-pin cable adaptor
         9V power charger


Navigator Upgrade Package

The Navigator Upgrade Package is software only.  It consists of:

      The Screen Power Integrated software, in a protective sleeve at the rear 
      of this manual:
         Two 3-1/2-inch low-density Program diskettes and one 3-1/2-inch 
         Manual diskette
         One 5-1/4-inch high-density Program diskette and one 5-1/4-inch 
         Manual diskette

      Complete user documentation on disk

As you are unpacking, remember to keep the packing material in case it becomes 
necessary to ship the equipment.


Typographical Conventions

The Screen Power documentation uses some simple typographical conventions.

Key names are italicized and referred to by the upper case print names from 
the standard keyboard.  For example, the Escape key is referred to as ESC.

Text or alphanumeric keys to be pressed are usually referred to within quotes.  
Do not type the quotes unless told specifically to do so.

Screen displays are usually indented on a line by themselves or displayed 
within quotes.  All screen displays are shown as they would appear on the 
normal unenlarged screen.  

File names are always shown in upper case bold print (i.e., FILENAME.TXT)

Where two keys should be pressed simultaneously, the keys are shown in upper 
case separated by a hyphen.  For example, CTRL-N means press the CTRL 
(CONTROL) key, hold it down, press the "N" key, and release both 
simultaneously.  


Customer Support

TeleSensory has a complete support system to resolve any problems you may 
encounter with your Screen Power system.  For technical questions on how to 
install or use Screen Power, just call our toll-free Technical Support 
Department at (800) 537-3961 (from North America only).  



If you have questions about your order or about any other TeleSensory 
products, call our Customer Service Department toll-free at (800) 227-8418 
(from North America only).  

If you are calling from outside North America, call (415) 960-0920.  






                                                             Quick Start Guide


This Quick Start Guide is designed for people who are familiar with computers, 
speech synthesizers, and refreshable braille systems.  If you do not fall into 
this category, please go directly to Chapter 1.  

1.    Set up PowerBraille 40 hardware: Connect PowerBraille 40's power supply.  
      Connect the parallel or serial interface cable to PowerBraille 40 and 
      your computer.  You can either use the Auto-detect port feature or 
      specify the port you use.  If you use the parallel connection, you can 
      use either LPT1 or LPT2.  If you use a serial connection, connect the 
      serial cable to PowerBraille 40's DCE (9-pin female) port, and the other 
      end to either COM1 or COM2.  You do not need to have the PowerBraille 40 
      hardware connected to run the installation program.

      If you have Navigator hardware: If you purchased the Navigator upgrade 
      package, you can only connect to a serial port.  You can either use the 
      Auto-detect port feature or specify the port you use.  Connect the 
      Navigator power supply.  Connect the serial cable to either COM1 or 
      COM2.  You do not need to have the Navigator hardware connected to run 
      the installation program.

2.    Install synthesizer: If you do not have a synthesizer installed with 
      your computer, install it now.  If you have the DECtalk PC board, be 
      sure all DIP switches are in the DOWN, or OFF, position.  Also be sure 
      your DECtalk speaker is plugged in and the volume is up.  If you have 
      the Pulse Data external synthesizer, be sure it is plugged into a serial 
      port and wall power, and be sure the power and volume are on.  Make note 
      of which COM port you are using or use Auto-detect.  If you purchased 
      Screen Power software only, make sure you have any necessary device 
      drivers installed (e.g., SPKACNT.DVC).

3.    Install software: You will need up to 1.6MB (depending on which 
      synthesizer you are using) available on your hard drive to store the 
      Screen Power files, and about 90K RAM (conventional memory) to run 
      Screen Power.  Most of the program swaps to expanded or extended memory 
      or to a swap file on your hard drive.

      Type INSTALL from the A or B drive to run the installation program.  
      Follow the prompts.  The installation program will create a batch file 
      called SP.BAT to run Screen Power.  If you want Screen Power to start 
      automatically whenever you turn your computer on, tell it you want to 
      modify the start-up files.  Screen Power will use the DOS "CALL" 
      statement (at the end of


      your AUTOEXEC.BAT file) to run the batch file.  Otherwise, you must type 
      SP to load Screen Power manually.

      Swapping Screen Power to Expanded or Extended Memory: During 
      installation, you will be asked to select a swap option.  Screen Power 
      can swap to expanded or extended memory or to a disk file on your hard 
      drive.  (If you don't have at least 170K of expanded, extended, or hard 
      drive space, all of Screen Power will go into conventional memory.)  
      Swapping adds a variable to the SPI command line in the SP.BAT file.  
      The SP.BAT file will accept up to four variables.  The following 
      command-line options exist for swapping:

      /F    Swaps Screen Power to a disk file on the hard drive

      /T    Swaps Screen Power to extended memory

      /X    Swaps Screen Power to expanded memory

      Using View2: During the installation process, you will be asked if you 
      want to use View2, TeleSensory's on-line Grade 2 translation program.  
      If you choose to load View2, the installation program will add the line 
      CALL SPVIEW2 to the SP.BAT file, just before the file loads SPI.  This 
      program uses an additional 60K of conventional memory, which cannot be 
      swapped to extended or expanded memory, but can be loaded high.  View2 
      allows you to use a panel key hotkey to instantly translate your screen 
      information to Grade 2, where it is displayed on your PowerBraille 40 or 
      Navigator.  This is a new version of View2.  You cannot use the old 
      version for Navigator/Gateway.  

      Modify Start-up Files: You will also be asked if you want to modify the 
      start-up files.  If you do, the installation program will make a backup 
      copy of each file, then add the line DEVICE=C:\DOS\ANSI.SYS to the 
      CONFIG.SYS file and the line CALL SP to the end of the AUTOEXEC.BAT 
      file.  

4.    Install manual files: Screen Power documentation files are located on a 
      separate disk, which has an installation program similar to the Screen 
      Power installation.  Follow the prompts to install the manual files in 
      the directory of your choice.  The manuals are all in ASCII text format.  

5.    Running Screen Power: If you told the installation program to modify 
      your start-up files, you must reboot your computer to activate the 
      changes to the start-up files.  Screen Power will run automatically.

      If you did not choose to modify the start-up files, you do not need to 
      reboot your computer.  You must type SP at the DOS prompt to run Screen 
      Power.  





                                                       Chapter 1: Installation


This chapter describes how to install your Screen Power Integrated system: the 
PowerBraille 40 hardware, a synthesizer, and the Screen Power Integrated 
software.  It is divided into two sections: Hardware Installation and Software 
Installation, including installing the manual files.  If you purchased the 
Navigator upgrade package, you should already have and synthesizer and your 
Navigator set up and ready to run.  If so, you can skip the hardware 
installation and go directly to the software installation section on page 18.  

Read through the directions once before you start and be sure you understand 
all the steps involved.  If you have any questions or are unsure of what to 
do, contact TeleSensory Technical Support at 1-800-537-3961.


PowerBraille 40 Hardware Description

The following is a brief physical description of the PowerBraille 40 hardware.  

      Top surface controls are a 40-cell braille display with a tactile button 
      above each cell, and two push-buttons, one at each end of the braille 
      display.  There is also a tactile ruler with indicator dots below each 
      braille cell.  Two Velcro strips help secure the unit to a laptop 
      computer or keyboard.

      Front panel controls from left to right are left rocker bar, convex key, 
      concave key, right rocker bar.

      Right side has no controls.

      Left side has no controls.

      Rear panel controls are (from left to right as you face the back panel)

         On/off toggle switch (ON is left; OFF is right)
         Power-in port (2.5 mm jack, center pin positive), labelled DC IN
         Serial port (9-pin male), labelled DTE, for BrailleMate connection
         Parallel port (25-pin male), labelled PARALLEL, for computer 
         connection
         Serial port (9-pin female), labelled DCE, for computer connection

      Bottom surface has a battery access panel and the product label

      Dimensions: 14 inches wide; 13 inches deep; 1.5 inches tall



      Weight: 5 pounds

Battery Usage Status Displays

The PowerBraille 40 has internal NiCad rechargeable batteries located inside a 
panel on the bottom of the unit.  These batteries charge automatically while 
the power adaptor/charger is plugged in.  There should be no need for you to 
remove or replace these batteries.

If PowerBraille 40 is off, but you have the power supply plugged in, the unit 
will display a battery usage status message in North American computer 
braille.  This is because whenever the power supply is connected and the power 
switch is off, PowerBraille 40 is charging.  The status message shows usage in 
hours, minutes, and seconds, and will look something like this:

  battery usage 00:07:35, fast charge on

The battery usage information is an indication of how long the unit has been 
run on battery power.  The above message means you have used the unit for 7 
minutes and 35 seconds on battery power.  Whenever there is any time showing 
on the battery usage status, PowerBraille 40 will use a "fast charge."  While 
fast charge is on, the battery usage time will tick down until it reaches 
zero.  At that point, the "slow charge" begins.  The message will then be:

  battery usage 00:00:00, slow charge on

This message will remain displayed until you turn on the unit or remove the 
charger.  You should always turn the PowerBraille 40 hardware on either before 
or at the same time as your computer.  

Whenever you turn on the PowerBraille 40 hardware without turning on the 
computer, the PowerBraille 40 unit displays its name, version number, and 
battery usage status.  The display will look something like this:

  Braille 40 v4.0a, battery usage 00:00:35

The characters after the letter "v" tell you which version it is.  This 
message will appear whenever you turn on the unit, whether the power supply is 
connected or not.  

IMPORTANT NOTE:  PowerBraille 40 goes into a "sleep mode" to conserve energy 
whenever you are not using it.  After 4 minutes of inactivity, the braille 
characters fade away temporarily.  They gradually become mushy as all dots 
rise, until all dots in all cells are up.  This is the "sleep" mode for 
PowerBraille 40.  As soon as you press any key, the cells go back to their 
"awake" position.  However, the key you press does not take effect on the 
computer.  It just wakes up the cells.  You must press the key again to have 
PowerBraille 40 execute its function.

PowerBraille 40 Hardware Setup




This section provides instructions for setting up the PowerBraille 40 
refreshable braille hardware.  If you purchased the Navigator upgrade package, 
you should have your Navigator hardware already set up.  If so, skip directly 
to the next section on software installation.

1.    Attach the PowerBraille 40 power supply cable to the display unit.  This 
      connector is on the back panel near the left side (as you face the rear 
      of the unit).  Plug the other end into a wall outlet or power strip.

2.    Connect the parallel or serial cable to the back of the PowerBraille 40 
      display unit.  

      Serial connection: There are two 9-pin serial connectors, one female and 
      one male.  If you want a serial connection to your computer, you must 
      use PowerBraille 40's 9-pin female port.  Connect the male end of the 
      serial cable to this female port.  Connect the other end of the cable to 
      either COM1 or COM2 on your computer.  You can either use the Install 
      Program's Auto-detect feature to detect the serial port or you can note 
      whether you are using COM1 or COM2 so that you can tell the Installation 
      program.  The Installation program default is Auto-detect.  The male 
      connector on the PowerBraille 40 unit is for use with TeleSensory's 
      BrailleMate portable braille notetaker.  

      Parallel connection: The parallel connector is a 25-pin male port.  
      Connect the female end of the parallel cable to PowerBraille 40's 
      parallel port.  Connect the other end of the parallel cable to your 
      computer's parallel port, either LPT1 or LPT2.  You can either use the 
      Install Program's Auto-detect feature to detect the serial port or you 
      can note whether you are using LPT1 or LPT2 so that you can tell the 
      Installation program.  The Installation program default is Auto-detect.  

3.    Place your laptop computer or desktop computer keyboard on the 
      PowerBraille 40 hardware unit directly behind the braille display strip.  
      You can use the enclosed Velcro strips to make a more secure attachment.  
      Be sure the rest of your computer system is completely set up, with all 
      components connected and verified to be working properly.


Synthesizer Installation

This section provides instructions for installing the DECtalk internal and 
Pulse Data external synthesizers.  Skip to the section that pertains to the 
particular synthesizer you received with your Screen Power package.

DECtalk PC Board Hardware Installation




The DECtalk PC internal board works with IBM PC, XT, or AT and compatible 
computers.  The board operates on an ISA or EISA bus.  DECtalk PC does not 
support the MicroChannel MCA bus.


The DECtalk PC Board

The DECtalk PC board is approximately four inches wide by 13 inches long. With 
the front component side facing up, orient the board with the mounting bracket 
to the right and the bus connector tab facing downward.

The bus connector is three inches long by 1/3-inch deep and protrudes from the 
bottom right of the board. The DIP switch pack is located on the front of the 
board just above the left hand side of the bus connector, and is the third 
component in from the right. The external monaural speaker jack is located on 
the upper right hand side of the board and protrudes through the mounting 
bracket.  The board will fit into one full length, full height 8- or 16-bit 
slot in your PC or PC-compatible computer.


External Speaker

An external speaker comes with your DECtalk PC.  The speaker enclosure is four 
inches by five inches by two inches.  Orient the speaker with the speaker 
grille facing forward.  There is a standard 1/8-inch subminiature stereo 
headphone jack on the upper left hand side of the speaker and a volume control 
on the middle right hand side.  Attached to the speaker on the lower left hand 
side is a 36-inch long cable that terminates in a 1/8-inch monaural phone 
plug.  The speaker itself is a one-watt, three-inch speaker with a frequency 
range of 200 to 20,000 Hertz.

Note: The audio output contains self-protection circuitry that guards against 
shorts or overloads.  Plugging AC-powered external equipment (such as 
amplifiers or recorders that have one of their audio signal leads grounded) 
into either the DECtalk PC or speaker jacks could result in an overload and 
reduction or cessation of output.  It may take several seconds to recover 
after the equipment is disconnected.  It may be necessary to utilize an audio 
isolation transformer between the DECtalk PC output and the grounded external 
equipment.


Installing the DECtalk PC Board

Note: The DECtalk PC board has a DIP switch pack that lets you determine how 
the DECtalk PC board interfaces with the PC.  This switch pack is already set 
to correspond to the needs of most users.  The default settings probably meet 
your computer's requirements.  If you suspect that they do not, you may need 
to change the settings of the


DECtalk PC board or other installed options.  Refer to Chapter 2: Technical 
Information, for instructions.  

Note: There are many different physical configurations for personal computers.  
It is beyond the scope of this manual to describe all types of designs.  The 
tools and steps listed below should be sufficient for most computers.  

Note: Prior to performing any installation of the DECtalk PC board, turn the 
power to the computer OFF and unplug the power cord from the wall outlet.  
Failure to do so may result in serious injury to yourself and/or damage to 
your computer.

If you have a standard IBM personal computer, you will need only a flathead 
screwdriver.  If you have another IBM-compatible system, you may need other 
tools, e.g., a 5-millimeter Allen hex wrench for a Compaq, a Phillips-head 
screwdriver for some others.  Refer to the User Guide supplied with your 
computer for more information.

Perform the following steps to install the DECtalk PC board in your IBM PC, 
XT, AT or compatible personal computer:

1.    Remove all diskettes from the diskette drives.

2.    Set the power switch on the system unit to OFF.

3.    Unplug the power cord from the wall socket.

4.    Remove the system unit cover.  Since PCs tend to be slightly different, 
      simply follow the instructions that came with your personal computer.  
      Many PCs contain screws at the back of the system unit which must be 
      removed.  Most covers will then slide out toward the front.  

5.    With the system cover off, remove the screw from the bracket of an 
      available option slot on the rear panel.  Save the screw for later use.  
      Remove the bracket insert.

6.    Install your DECtalk board in an available slot as you would any other 
      full-size board, with the mounting bracket toward the rear of the unit 
      and the bus connector pointing down.  Firmly press the board in place 
      until it is correctly seated.  Replace the screw.  The bracket should be 
      flush with the rear mounting panel.

7.    Replace the system unit cover.  Replacing the system cover is the 
      reverse of removing it.  Follow the instructions which came with your 
      personal computer.

8.    Reconnect any other cables (e.g., keyboard, mouse, etc.) to the rear of 
      the system unit.

9.    Connect the power cable to the rear of the system unit and plug the 
      other end into the wall outlet.



10.   Connect the 1/8-inch phone plug on the speaker cable to the connector at 
      the rear of the DECtalk PC board located at the rear of the PC.  Make 
      sure the volume is on by turning the volume control knob on the speaker 
      most of the way in a clockwise direction.

The DECtalk PC board is now installed in your system unit.  Please skip the 
next section, "Pulse Data Hardware Installation" and proceed directly to the 
"Screen Power Software Installation" section.  


Pulse Data External Hardware Installation

The external synthesizer is connected to your computer via a 9- or 25-pin 
serial port.  You must have a free serial port in order to use the external 
Pulse Data.  The serial port must be either COM1 or COM2.  Make a note of 
which COM port you use if you want to reference it later in the Screen Power 
software installation program.  

1.    Connect the female end of the 9-pin cable to a free serial port on your 
      computer.  You may need to use the 9- to 25-pin cable adapter if you 
      computer has a 25 pin serial port.

2.    Connect the male end of the 9-pin cable to the 9-pin port on the back of 
      the Pulse Data external synthesizer.

3.    Connect the power charger to the back of the external synthesizer.

4.    Plug the power charger into a wall socket and turn the synthesizer on.  
      It should say, "Welcome to TeleSensory speech A C adaptor on."  

The Pulse Data external synthesizer is now installed.  Please proceed directly 
to the next section, "Screen Power Software Installation."


Screen Power Software Installation

Your system must be running DOS Version 3.3 or later.  If you are installing 
from a 3-1/2-inch drive, you will have either two or three diskettes, one or 
two labelled "Program" and one labelled "Manual."  If you are installing from 
a 5-1/4-inch drive, you will have two diskettes, one labelled "Program" and 
one labelled "Manual."  

The Screen Power Program Disk you receive has compressed files on it.   During 
the installation process the files will be "uncompressed" and placed on your 
hard drive in usable format.  If you have questions about the files on your 
disk, complete the software installation process so that the files are 
restored.  Then you can look at all of them.  

Note: It is possible to install the software without having your synthesizer 
      and PowerBraille 40 (or Navigator) hardware installed, but it is not 
      recommended.  



You will need up to 1.6MB (megabytes) available on your hard drive to store 
the Screen Power program and manual files.  You will also need about 90K 
(kilobytes) available RAM (or conventional memory) to run Screen Power.  

If you experience any problems during the installation process, please call 
TeleSensory Technical Support at 1-800-537-3961.  


Using View2 Grade 2 Translator

During the installation process, you will be asked if you want to install 
SPView2, TeleSensory's on-line Grade 2 braille translation program.  SPView2 
allows you to use a panel key command to instantly translate your screen 
information to Grade 2 braille, where it is displayed on your PowerBraille 40 
or Navigator.  You can then type on the computer keyboard and have your text 
translated to Grade 2 as you type.  

If you choose to load SPView2, the installation program will add the line CALL 
SPVIEW2 to the SP.BAT file, just before the file loads SPI (SPView2 must be 
loaded before Screen Power is loaded).  This program uses an additional 60K of 
conventional memory, which cannot be swapped to extended or expanded memory, 
but can be loaded high.

If you are using a 386 or higher computer running DOS 5 or later, you can 
conserve the use of conventional memory by placing the following 3 lines in 
your CONFIG.SYS file:

      DEVICE=HIMEM.SYS
      DEVICE=EMM386.EXE NOEMS
      DOS=HIGH,UMB

This reduces View2's use of conventional memory to about 20K.  When less 
conventional memory is used, you will have more room for running DOS programs.  

Note: If you are upgrading a Navigator from Gateway to Screen Power 
      Integrated, you must use SPView2 instead of the View2 program that came 
      with your Navigator.


Using Extended or Expanded Memory

Screen Power is designed to use about 240K of expanded or 170K of extended 
memory or a 300K swap file on your hard drive, leaving only about 90K of the 
program in conventional memory.  This frees up more conventional memory for 
running other applications.  (If you don't have the necessary expanded, 
extended, or hard drive space, all of Screen Power will go into conventional 
memory.)  




Conventional Memory

Conventional memory is the first 1MB (1024K) of RAM (random access memory).  
DOS only allows you to use the first 640K of this memory, though, and reserves 
the rest for other tasks, such as video memory.  Today's application programs 
often use most of that 640K (for example, WordPerfect 5.1 uses over 400K), 
leaving little for access programs and other memory-resident programs such as 
Screen Power.  


Extended Memory

You can have extra memory installed in your computer.  Memory over 1MB is 
called extended memory.  DOS does not use or recognize this memory by itself.  
Screen Power will use any extended memory installed in your computer as a swap 
area if you tell it to.  


Expanded Memory

Expanded memory requires a memory management tool that lets applications be 
loaded above 640K but below 1MB, in a section of memory that passes 
information through a "frame" into extended memory.  Memory managers, such as 
QEMM and EMM 386, convert extended memory into expanded memory.  When a 
program uses expanded memory, the memory manager swaps unused parts of the 
program out of conventional memory and into expanded memory, then back again 
as needed.  Not all application programs can use expanded memory.  Screen 
Power uses expanded memory as a swap area if you tell it to.  


Disk Memory

Some programs can be swapped to a disk file on the hard drive.  The disk file 
works the same way expanded and extended memory do.  Screen Power uses disk 
memory as a swap area if you tell it to.  


Screen Power Memory Swapping

Three ways are available to load Screen Power: disk file memory, extended 
memory, and expanded memory.  A question in the installation program prompts 
you to choose one of these methods.  This will add a variable to the SPI 
command line in the SP.BAT file.  The SP.BAT file will accept up to four 
variables.  The swapping command-line variables are:

      /F    Swaps Screen Power to a disk file on the hard drive

      /M    No swapping (takes about 400K of conventional memory)

      /T    Swaps Screen Power to extended memory

      /X    Swaps Screen Power to expanded memory



You will not need to use one of these options unless you change the swapping 
option after you complete the installation process.  When you choose one of 
the swapping types, the install program automatically adds the appropriate 
option to the SPI command line in the SP.BAT file.  For example, the default 
selection is to swap to a disk file, so the install program adds the /F option 
to the SPI command line.  Therefore, every time you run the SP.BAT file, 
Screen Power enables disk file swapping and uses only about 90K of RAM.  

Note: Screen Power Integrated cannot be loaded high.


Other Command Line Options

Two command line options exist for enabling and disabling Screen Power during 
operation:

      /D    Disables previously loaded copy of Screen Power

      /E    Re-enables Screen Power after a /D

Note: You can use the /D option while Screen Power is running by typing SPI /D 
      whenever you want to disable Screen Power's operation.  The /D option 
      disables Screen Power but does not remove it from memory.  Type SPI /E 
      to enable it again.  

Command line options exist for specifying the communication port (COM1, COM2, 
LPT1, or LPT2) that the braille display unit is connected to, the 
communication port (COM1 or COM2) that an external synthesizer can be 
connected to, and the interrupt and port address that some internal 
synthesizers (such as the Prose board) require:

      /Pn   (where n is 1 or 2) Specifies which parallel port, LPT1 or LPT2, 
            Screen Power should use for the braille display

      /BCn  (where n is 1 or 2) Specifies which serial port, COM1 or COM2, 
            Screen Power should use for the braille display

      /Cn   (where n is 1 or 2) Specifies which communication port, COM1 or 
            COM2, Screen Power should use for an external synthesizer

      /An   (where n is a three-digit port address, such as 300) Specifies 
            which port address Screen Power should use for some internal 
            synthesizers

      /In   (where n is 2, 3, 4, 5, 6, or 7) Specifies which interrupt Screen 
            Power should use for some internal synthesizers

You will not need to use one of these options unless you change the 
communication port, address, or IRQ you use for your synthesizer or braille 
display after you complete the installation process.  The installation program 
automatically adds each item to the SP.BAT file it creates.  
Using the Prose (Vert) Board with Screen Power




You can use the Prose internal synthesizer with Screen Power.  You should 
select "Prose Board" when the installation program prompts you to select a 
synthesizer.  You will be prompted to specify which port address and interrupt 
your Prose board is using.  The defaults are address 300 and interrupt 2.  The 
Screen Power installation program will add the appropriate variables to the 
command line when it creates the SP.BAT file.  


Using BrailleMate as a Synthesizer for Screen Power

You can use TeleSensory's BrailleMate as a synthesizer for Screen Power.  If 
you purchased Screen Power software only (no synthesizer), you will be 
prompted during the installation process to specify your synthesizer from a 
list.  BrailleMate is on this list.  You must also tell Screen Power whether 
BrailleMate is connected to COM1 or COM2.  

To activate BrailleMate as a synthesizer, give the BrailleMate command to put 
BrailleMate into External Synthesizer Mode: L/R X (this means to press both 
the left and right shift keys simultaneously with a braille letter X, dots, 1, 
3, 4, and 6).  This is a toggle command, so you should press it again when you 
want to leave External Synthesizer Mode and return to Stand-alone Mode.  You 
can also enable BrailleMate's External Keyboard mode (L/R K) to use 
BrailleMate for keyboard input to your computer.  Refer to your BrailleMate 
manual for more information on these operations.  


Using the Installation Program

1.    Starting the Installation Program

      Start from the DOS prompt, usually C:\>.

      Put the Screen Power Program diskette in drive A or B.

      Type A: or B: and press ENTER.   

      Type INSTALL and press ENTER.

      The computer displays a screen with two menu items welcoming you to the 
      installation program and asking you if you want to install or exit.  
      Press ENTER to continue with the installation.  Press X to abort the 
      installation.

      Note: You can press CTRL-C at any time to abort the installation.

2.    Entering Your Name

      The program asks for your name.  A name can consist of any characters 
      (except %, the percent sign), but it must include at least one 
      alphabetical character.  The name you enter will be displayed on the 
      computer screen and the braille display each time you load Screen Power.  
      You will then be asked to confirm


      your name.  Press ENTER to confirm, or press the DOWN ARROW, then ENTER 
      to input a new name.  

3.    Specifying Communication Port

      Screen Power needs to know which communication port (on the computer) 
      your PowerBraille 40 (or Navigator) is connected to.  For PowerBraille 
      40, this can be either a parallel port or a serial port.  The default 
      setting is to have the Install program Auto-detect the communication 
      port.  If you use this item, you do not need to specify the 
      communication port.  Press ENTER to select Auto-detect.  If you select 
      Auto-detect, Screen Power finds the communication port your PowerBraille 
      40 or Navigator is connected to and makes it the default.  In this case, 
      Screen Power does not add an option to the SPI command line because it 
      is now the default.

      If you want to specify the communication port, select one of the other 
      choices.  The choices are COM1, COM2, LPT1, and LPT2.  COM1 and COM2 
      refer to your computer's serial ports; LPT1 and LPT2 refer to its 
      parallel ports.  Use the DOWN ARROW key to move to one of these options.  
      When you make your selection, Screen Power adds the information to its 
      start-up commands so that it knows where to send information.  

      If you are using the Navigator hardware, you can only use serial 
      communication, so you must specify either COM1 or COM2.

4.    Specifying Synthesizer Parameters & Connections

      a. If you have an Accent SA or Pulse Data external synthesizer or if you 
         are using BrailleMate as your synthesizer, you must specify which of 
         your computer's serial ports it is connected to, COM1 or COM2.  If 
         you have specified a serial port for your braille display unit, you 
         will only be given the remaining available serial port as an option 
         here.  

         The default setting is to have the Install program Auto-detect the 
         synthesizer communication port.  If you use this item, you do not 
         need to specify the communication port.  Press ENTER to select 
         Auto-detect.  If you select Auto-detect, Screen Power finds the 
         communication port your Accent SA, Pulse Data, or BrailleMate is 
         connected to and makes it the default.  In this case, Screen Power 
         does not add an option to the SPI command line because it is now the 
         default.

      b. If you have the Prose board (the Vert Plus board), you must specify 
         your IRQ and Port Address setting.  The installation program will 
         first ask for the interrupt, which can be IRQ 2, 3, 4, 5, 6, or 7.  
         The default is IRQ2.  Next, the program asks for the port address, 
         which can be one of several three-digit


         numbers.  The default is 300.  Always select the default unless you 
         know that your Prose board hardware is set for another IRQ or port 
         address.  

      c. If you have DECtalk, Pulse Date Internal (the Personal Vert 2 board), 
         or Accent PC (internal synthesizer), the installation program will 
         skip this step.  The installation program automatically configures 
         Screen Power for these internal synthesizers.  

         Note: The Accent PC internal synthesizer must be properly installed 
         independently from Screen Power software.  The appropriate device 
         driver and address settings must already be in place.  

5.    Creating a Directory

      The installation program asks if you want to install Screen Power in the 
      default directory or if you want to choose your own directory.  Unless 
      you have some particular reason to want your Screen Power files 
      elsewhere, press ENTER to accept the default directory, C:\SPI.  

      If you want to specify another drive or directory, backspace over the 
      current entry, then type the full drive and directory name and press 
      ENTER.  If the directory you entered already exists, the install program 
      warns you that Screen Power files may replace files that already exist 
      in the directory.  Press ENTER to type in a new directory.  

      The install program copies the correct files to the selected directory 
      in your hard disk and uncompresses files.  This may take a few minutes.  

6.    Installing On-line Grade 2 Translator

      The installation program asks if you want to install SPView2, 
      TeleSensory's on-line Grade 2 braille translation program.  Press the 
      ENTER key to install SPView2.  Press the DOWN ARROW key and then the 
      ENTER key if you do not want to install View2.  For more information 
      about View2, see the section earlier in this chapter titled "Using View2 
      Grade 2 Translator."  

      Note: If you are upgrading a Navigator from Gateway to Screen Power 
            Integrated, you must use SPView2 instead of the View2 program that 
            came with your Navigator.

7.    Selecting Swap File Options

      Screen Power must be loaded with a swap option.  This means part of the 
      Screen Power program will reside in extended or expanded memory or swap 
      to a disk file on your hard drive.  Three options exist:  swapping to a 
      hard drive file (adds the /F


      option to the SPI command line), swapping to extended memory (adds /T), 
      and swapping to expanded memory (adds /X).  If you do not understand 
      these options, read the section called "Using Extended or Expanded 
      Memory" earlier in this documentation.  

      The default setting is to swap to a disk file.  If you want this option, 
      just press the ENTER key.  If you want one of the other swap options, 
      use the DOWN ARROW key to move to the one you want, then press ENTER.  

8.    Modifying Your Computer's Start-up Files

      The next screen in the installation program asks if you want to add a 
      command to load Screen Power from within your AUTOEXEC.BAT file, which 
      is executed automatically each time you start your computer.  Your 
      CONFIG.SYS file will also be modified if it does not contain ANSI.SYS.  

      The ANSI.SYS file exists on your standard DOS disk.  Screen Power uses 
      ANSI.SYS to enhance its screen-reading.  If you already have a 
      CONFIG.SYS file, Screen Power will add a command line to it telling the 
      computer to use ANSI.SYS.  If you don't have a CONFIG.SYS file, Screen 
      Power will not create one.  You must create this file using a DOS text 
      editor, and add the following line: DEVICE=C:\DOS\ANSI.SYS.  

      If you don't want Screen Power to start automatically when you turn on 
      your computer, you should select the "Do Not Modify Start Up Files" 
      setting.  To make this selection, press the DOWN ARROW key, then press 
      ENTER.  

      If you want Screen Power to start automatically when you turn on your 
      computer, you should select the default "Modify Start Up Files."  Select 
      the "Modify" option by pressing ENTER.  The installation program will 
      modify your AUTOEXEC.BAT file by adding the line CALL SP to the linen 
      after the "PATH" statement.  Before modifying this file, the 
      installation program makes a copy of your current AUTOEXEC.BAT file, 
      which it names AUTO$$.SP, and your CONFIG.SYS file, which it names 
      CONF$$.SP.  

      The DOS "CALL" function runs a batch file from within another file.  In 
      this case, it will run the SP.BAT file from within the AUTOEXEC.BAT 
      file, returning to the AUTOEXEC.BAT file when it is done.  

9.    Selecting the Start-up Drive

      If you chose to modify the start-up files, the installation program now 
      needs to know which drive you use to start up your computer (if you 
      chose not to modify the files, the installation program will not ask you 
      this question).   Normally, this is drive


      C.  If you have a standard PC configuration, press the ENTER key to 
      accept the C drive.  If your start-up drive is not C, enter the letter 
      of your start-up drive, then press ENTER.  (You do not need to backspace 
      over the existing drive letter.  Just enter the new drive letter, then 
      press ENTER.)  Screen Power will not install to a floppy disk.  

10.   Completing the Installation

      You have now completed the installation.  A final screen tells you to 
      press any key to exit the installation program.  When you do that, you 
      will go back to the DOS prompt.  Screen Power creates a batch file 
      called SP.BAT that runs the correct Screen Power files for your 
      synthesizer.  This batch file will be in both the root directory and 
      whichever Screen Power directory you designated (the default is \SPI).  

      If you chose to have the installation program modify your start-up 
      files, Screen Power tells the AUTOEXEC.BAT file to automatically run the 
      SP.BAT file instructions, then return to the AUTOEXEC.BAT file to 
      execute any further instructions.  Before this can be activated, you 
      must turn off your computer, then turn it back on again, to activate the 
      change in the AUTOEXEC.BAT file.  Don't forget to remove the program 
      disk from the drive.  

      If you did not choose to have the installation program modify your 
      start-up files, you must execute the SP.BAT file some other way, either 
      by including it in your own batch file or by manually entering the 
      command SP from the DOS prompt.  


Congratulations!

You have successfully installed your Screen Power system.  See the next 
section, "Starting Screen Power," for instructions on how to run Screen Power 
when you turn on your computer.


Starting Screen Power

If you chose to have the Screen Power installation program modify your 
start-up files, then Screen Power will start automatically whenever you turn 
on your computer.  

If you did not modify the AUTOEXEC.BAT file, you should type 

      SP

and press ENTER now to load Screen Power.  You will need to do this whenever 
you turn on your computer.  Screen Power will load, then announce and display 
its start-up message.  

Installing Manual Files




The text files on your Manual Diskette are compressed.  There is an 
installation program on the Manual Diskette that expands the files and copies 
them to your hard drive.  This installation program is structured like the 
Screen Power software installation program you just used.  It is not necessary 
to have Screen Power installed and running while you install the manual files, 
but if you do, you can rely on Screen Power's speech and braille prompts.  

Follow the prompts to put the files on your hard drive.  The install program 
will put the manual files in the default Screen Power directory (\SPI) or 
another directory if you prefer.  When you are finished, the files will all 
have the extension "TXT."  You can use the DOS TYPE command, the SPIREAD.COM 
program included with the program disk, or your word processor or text editor 
to read the files.  Please refer to Appendix A: Screen Power Utilities for 
information about the SPIREAD utility.  


Using Screen Power with Other TeleSensory Products


Using Screen Power With OsCaR

To use Screen Power with TeleSensory's OsCaR optical character recognition 
system, you must have OsCar version 3.1a or later.  You will probably need to 
upgrade your OsCaR to the latest version to have compatibility with Screen 
Power.  Call TeleSensory's Customer Service at (800) 227-8418 for details and 
latest information.  


Using Screen Power With Other TSRs

Whenever using Screen Power with other TSRs (Terminate and Stay Resident 
programs), it is best to run Screen Power last.  Any TSR larger than 175K run 
after Screen Power risks being swapped out when Screenpower swaps.  In other 
words, Screen Power prefers to be last.  If you experience any problems with 
Screen Power while other resident programs are running, try loading the other 
programs before Screen Power.  






                                              Chapter 2: Technical Information


This chapter details hardware and software settings for the DECtalk 
synthesizer board, the external Pulse Data synthesizer, and the PowerBraille 
40 refreshable braille display unit.  


DECtalk PC Board Hardware & Software Settings

You can configure DIP switches on the DECtalk PC board to change settings.  In 
addition, several utility programs exist for the DECtalk board.  You will 
rarely need to use any of them.  They are listed below for your convenience.  


DECtalk PC Board Hardware Settings


The latest version of the DECtalk PC interface board and software has 
configuration options to change only the input/output (I/O) address, also 
called "base address."  You can change the I/O address by changing DIP switch 
settings on the DECtalk PC board.  You can also customize the DECtalk board 
via several configuration utilities on your Screen Power Program Disk.  These 
utilities have names like DT_CONF and DT_START, and are necessary to run the 
Screen Power system.  The utilities are automatically put in the SP.BAT file 
that is created when you install Screen Power.  This section will first 
discuss the hardware, then the software changes you can make to customize your 
Screen Power system.

Note: Earlier versions of DECtalk had options to change the IRQ and BIOS 
      address in addition to the I/O address.  The latest DECtalk PC software 
      drivers have eliminated the need to set IRQs and BIOS addresses.  


Default Hardware Settings

The DECtalk PC board is shipped to you with the following settings:

      IRQ:              not used

      I/O Address:      240

      BIOS Address:     not used

You may change these settings by changing the positions on the DIP switch 
pack.  The DIP switch pack is located in the lower right corner of the DECtalk 
board.  It is the only DIP switch pack on the DECtalk board and the only 
component that is configurable by the user.  It is the third component in from 
the right (bracket) side of the board.  It is about one-inch long by 1/3-inch 
deep.  There are nine slide switches horizontally.  Switch 1 is on the left; 
Switch 9 is on the right.  When the


switch is in the DOWN position, it is OFF.  When the switch is in the UP 
position, it is ON.  

The first five switches control the IRQ setting.  These switches should all be 
OFF, since the DECtalk board no longer uses IRQs.  Switches 6 and 7 control 
the I/O address.  These are the only switches you should ever need to change.  
They are both OFF in default mode.  Switches 8 and 9 control the BIOS address.  
These switches should also be OFF, since BIOS addresses are no longer used.  
The default switch settings are therefore all OFF:

1 OFF;  2 OFF;  3 OFF;  4 OFF;  5 OFF;  6 OFF;  7 OFF;  8 OFF;  9 OFF

If your DECtalk PC board arrives from TeleSensory with different switch 
settings from the above, contact TeleSensory Technical Support department at 
(800) 537-3691.


Changing Hardware Settings

If your computer, your Screen Power system, and other options you have 
installed in your computer all work fine, then you will not need to change any 
hardware settings.  You may need to change one or more of the settings if 
there is a conflict with another device running in your computer system.  You 
will know there is a conflict if your system runs properly without the DECtalk 
PC board installed, but exhibits a problem after you install the DECtalk board 
and the Screen Power software.  If your computer "hangs up" or you cannot 
access one of your other installed options or Screen Power does not speak, 
this probably indicates a hardware conflict.  

Note: To change the hardware settings, you must first turn off your computer.  
      It is unsafe to change interface board settings with the computer power 
      on.  You will also need to remove the DECtalk board from the computer to 
      have access to the DIP switch pack.  

Note: If you are not sure which setting to change, you can use a configuration 
      utility that is included with your Screen Power.  The utility is called 
      DT_CONF, and is installed (along with your other files) in your Screen 
      Power directory when you run the installation program.  This utility has 
      several purposes, one of which is to recommend hardware settings for the 
      DECtalk PC board.  This and other utilities will be discussed in detail 
      near the end of this appendix.  


I/O Address Settings

You can set the DECtalk PC at I/O address 240, 250, 340, or 350.  The default 
setting is address 240.  DIP switches 6 and 7 control the I/O address 
settings.  The following table defines the positions for DIP switches 6 and 7.  






I/O Address           Switch Settings

                      6          7

240-24F (default)     OFF        OFF

250-25F               ON         OFF

340-34F               OFF        ON

350-35F               ON         ON

DECtalk SP.BAT File

When you run the Screen Power installation program, it creates a file called 
SP.BAT.  This file starts Screen Power.  The installation program puts SP.BAT 
in the root directory and in the \SPI subdirectory (or the directory you 
substituted for the default).  Depending on the selections you made during the 
installation, this file may be called from your AUTOEXEC.BAT file or you may 
need to run it manually.  

If you installed the PowerBraille 40 on COM2, the Screen Power SP.BAT file for 
DECtalk will look something like this (it may not be exact because the file 
may change after publication of this manual):

  ECHO OFF
  C:\SPI\INPATH C:\SPI > NUL
  IF ERRORLEVEL 1 GOTO SKIPST1
  PATH %PATH%; C:\SPI
  :SKIPST1
  IF %SPI% !==! GOTO DOIT
  ECHO SCREEN POWER ALREADY INSTALLED. NO ACTION TAKEN.
  GOTO END
  :DOIT
  SET SPI=C:\SPI
  C:
  CD \SPI
  DT_DRIV -R
  DT_CONF
  DT_DRIV -C
  DT_LOAD KERNEL.SYS DTPC.DIC LTS.EXE PH.EXE CMD.EXE
  DT_START " "
  CALL SPVIEW2
  SPI /BC2 /X %1 %2 %3 %4
  CD \
  :END




  The first line, ECHO OFF, instructs the computer to execute the rest of the 
  batch file without displaying its activity on the screen.  
  The second through ninth lines tell Screen Power to skip the rest of the 
  file if the Screen Power program has already been loaded.
  The tenth line, SET SPI=C:\SPI, sets a global variable so that no matter 
  what directory you are in, your computer will find the Screen Power system 
  commands.  
  The eleventh and twelfth lines make sure you are in the correct drive and 
  subdirectory.  The twelfth line will be different if you do not use the 
  default directory.
  The thirteenth through seventeenth lines all begin with the characters DT_. 
  Each line executes a DECtalk utility.  The commands must appear in the order 
  given.  These utilities will be discussed in detail in the next section, 
  "Changing Software Settings: DECtalk Utilities."  
  The eighteenth line, CALL SPVIEW2, starts SPView2, the on-line Grade 2 
  translation program.  If you chose not to load Grade 2 during the Install 
  program, this line will be absent.
  The nineteenth line, SPI /BC2 /X %1 %2 %3 %4, runs the Screen Power software 
  using COM2 for the braille display, using expanded memory swap (your file 
  may differ depending on your swapping method), and allowing up to four 
  additional variables to be passed.  This line will vary greatly from user to 
  user and will often have no variable for the braille display connection (if 
  you use the Auto-detect feature).  
  The twentieth line, CD \, returns you to your root directory.
  The last line, :END, ends the file.


Changing Software Settings: DECtalk Utilities

Several DECtalk utilities exist to help you customize your Screen Power 
system.  They are all installed in your Screen Power directory when you run 
the installation program.  The files are:

      DT_CONF .EXE
      DT_DRIV .EXE
      DT_LOAD .EXE
      DT_START.EXE

The DT_CONF utility helps configure and initialize the DECtalk PC hardware 
settings.  The DT_DRIV utility loads the DEC TSR (memory resident) program and 
allows you to change the communication port the DECtalk PC board uses to 
interact with the computer.  The DT_LOAD utility loads the speech kernel, the 
dictionary, and other essential pronunciation functions.  The DT_START utility 
allows you to customize the message that the DECtalk board speaks to you each 
time you load the speech system.  

Note: If you suspect there is a hardware conflict between your Screen Power 
      and your computer system, you should run the DT_CONF


      utility immediately.  You must remove the DECtalk board from your 
      computer so that the DT-CONF utility can check out the system and make 
      recommendations without the DECtalk board present.  

Following is a discussion of each utility.


DT_CONF

The DT_CONF utility initializes the DECtalk board.  When you type DT_CONF with 
nothing after it, it performs an automatic initialization.  You can also use 
DT_CONF with a -M, -R, -C, or -I.  The characters "DT_CONF" must be followed 
by a space followed by a dash (-) then a letter.  These letters are called 
switches.  Each activates a different subprogram.  There are three 
subprograms, run with -R, -C, or -I.  Also, you can type DT_CONF -M to see a 
list of the three valid switches and their functions.  Following is a 
discussion of each.  

  DT_CONF -R      recommends IRQ, I/O address, and BIOS address settings for 
                  the DECtalk PC board.

  Note:  This utility still contains references to IRQs and BIOS addresses.  
         Since these are no longer needed, you should ignore that part of the 
         recommendation.  The only settings you will be concerned with are for 
         the I/O address.  

  Use this utility if you tried to install Screen Power and your think there 
  is a hardware conflict.  Remember that you must remove the DECtalk PC board 
  first to get a true idea of available settings in your computer.  When you 
  type DT_CONF -R, the utility will scan your computer to find any and all 
  available IRQ, I/O address (here called "base"), and BIOS address settings.  
  It will display the results on your screen.  

  The display on your computer screen will look something like this:

      Configuration scan shows.....
      Free base addresses are 240, 250, 340, 350.           
      Recommended switch settings are ...

      ++--------------------++------++--------++
                  irq            base     bios
      ++--------------------++------++--------++
        01  02  03  04  05    06  07  08  09
      ++--------------------++------++--------++
        off off off off off  off off  off off
      ++--------------------++------++--------++
        Irq <none>, base 240, bios <none>

  The first three lines of text contain the available settings.  The next part 
  of the display is a small chart with three text lines in boxes.  The last of 
  the three lines gives the switch positions (ON or OFF) for the


  recommended settings.  The final line of the display contains the 
  recommended settings (base 240, etc.).  

  DT_CONF -C      tells you what settings your DECtalk PC board is currently 
                  using.

  Use this utility if you need to know the IRQ and I/O address (here called 
  "base") of your DECtalk PC after you install it.  When you type DT_CONF -C, 
  the utility will display these settings and tell you how many DECtalk PC 
  boards (here called "modules") it finds. 

  The display on your computer screen will look something like this:

      DECtalk PC modules installed are :
         Module 0 at base : 240
      1 module found.

  DT_CONF -I      finds and initializes all DECtalk PC boards.

  The command "DT_CONF" is in the SP.BAT file.  This command automatically 
  initializes the DECtalk board.  However, certain inconsistencies in PC 
  compatibles may prevent the DECtalk PC board from being automatically 
  initialized when you boot up your computer.  This rarely happens.  If it 
  does happen, you can manually force the initialization by adding the "-I" to 
  the DT_CONF line in the SP.BAT file.  When DT_CONF -I is executed, the 
  initialization programs starts and you will receive a message something like 
  this:

      Attempting to initialize and install DECtalk PC modules. The system may 
      hang during this test if the modules are improperly installed, Wait at 
      least 1 minute (to ensure initialization) and remove the DECtalk PC 
      module if this happens.

  After the initialization is complete, a message similar to the following 
  will be displayed:

      Complete ... installing DECtalk PC modules...
      Adding module at base 240
      One module installed.


DT_DRIV

The DT_DRIV utility allows you to change the communications port for the 
DECtalk DOS-resident program.  The default port is COM4.  When you type 
DT_DRIV -C without anything after it, the utility assumes the default setting 
of COM4.  If you want to change the setting, you must type a number that 
corresponds to the following table:

  -C 1 = COM2
  -C 2 = COM3
  -C 3 = COM4



After you run the Screen Power software installation program, you will find 
DT_DRIV -R and DT_DRIV -C lines in the SP.BAT file.  The -R line resets any 
previous changes; the -C line activates the default COM port setting.  If you 
need to change the setting, use a text editor like EDLIN to add the setting 
number at the end of the DR_DRIV -C line.  Please note that it is highly 
unlikely that you will ever need to change this setting.  


DT_LOAD

DT_LOAD loads the speech kernel and all the dictionary and phonetic files 
needed to run Screen Power.  The installation program finds several files on 
your Screen Power program disk and puts them in the DT_LOAD command in the 
SP.BAT file.  These files are:

  KERNEL.SYS
  DTPC.DIC
  LTS.EXE
  PH.EXE
  CMD.EXE

These files contain the speech kernel and all the DECtalk dictionary and 
phoneme files.  These files not only contain complete phonetic rules, they 
also contain specialized pronunciation rules and exceptions so that Screen 
Power will pronounce words like "Illinois" correctly. 


DT_START

The DT_START utility allows you to customize the message that the DECtalk 
board speaks to you when it starts each day.  The SP.BAT file contains the 
line DT_START with spaces in quotes after it.  This suppresses the DECtalk 
version message during start-up.  If you took out the quotes, Screen Power 
would speak the DECtalk default message:

  DECtalk PC Version 4.1C is running.

We suppress this message because the Screen Power software message overrides 
it and cuts it off in the middle.  If you want to customize the start-up 
message Screen Power speaks to you, enter the text you want surrounded by 
double quotes.  Just remember that a long message may be cut off.  For 
example, if you change the DT_START line to this:

  DT_START "Beam me up, Scotty"

Screen Power will speak the words "Beam me up, Scotty" when it boots up each 
day.  Remember, the words you choose must be between quotes.  If you have 
quotes with nothing between them, Screen Power will not speak any message.  

Note: There may be several other DECtalk files installed with your system.  Do 
      not erase them.  




External Pulse Data Hardware & Software Settings

Very few changeable items exist on the Pulse Data external synthesizer.


Pulse Data Hardware Settings

The Pulse Data external synthesizer has no installation options.  You do not 
need to change any settings.  You must connect it to either COM1 (serial port 
1) or COM2 (serial port 2) in your computer.  


Pulse Data SP.BAT File

When you run the Screen Power installation program, it creates a file called 
SP.BAT.  This file starts Screen Power.  The installation program puts SP.BAT 
in the root directory and in the \SPI subdirectory (or the directory you 
substituted for the default).  Depending on the selections you made during the 
installation, this file may be called from your AUTOEXEC.BAT file or you may 
need to run it manually.  

If you have the PowerBraille 40 connected to COM2, the Screen Power SP.BAT 
file for the Pulse Data external synthesizer looks like this:

  ECHO OFF
  C:\SPI\INPATH C:\SPI > NUL
  IF ERRORLEVEL 1 GOTO SKIPST1
  PATH %PATH%; C:\SPI
  :SKIPST1
  IF %SPI% !==! GOTO DOIT
  ECHO SCREEN POWER ALREADY INSTALLED. NO ACTION TAKEN.
  GOTO END
  :DOIT
  SET SPI=C:\SPI
  C:
  CALL SPVIEW2
  SPI /BC2 /X %1 %2 %3 %4
  :END

  The first line, ECHO OFF, instructs the computer to execute the rest of the 
  batch file without displaying its activity on the screen.  
  The second through ninth lines tell Screen Power to skip the rest of the 
  file if the Screen Power program has already been loaded.
  The tenth line, SET SPI=C:\SPI, sets a global variable so that no matter 
  what directory you are in, your computer will find the Screen Power system 
  commands.  
  The eleventh line, C:, makes sure you are in the correct drive.
  The twelfth line, CALL SPVIEW2, starts SPView2, the on-line Grade 2 
  translation program.  If you chose not to load Grade 2 during the Install 
  program, this line will be absent.
  The thirteenth line, SPI /BC2 /X %1 %2 %3 %4, runs the Screen Power screen 
  access software using COM2 for the PowerBraille 40,


  using expanded memory swap (your file may differ depending on your swapping 
  method), and allowing up to four additional variables to be passed.  This 
  line will vary greatly from user to user and will often have no variable for 
  the braille display connection (if you use the Auto-detect feature).  
  The last line, :END, ends the file

There are no other software settings for Pulse Data.  


Specifications for PowerBraille 40 I/O Ports

PowerBraille 40 has two serial ports and one parallel port.  



Port Type  Connect To   Type & GenderDefault Baud RateFixed or Changeable

DCE        Primary computer connection9-pin female9600Fixed

DTE        BrailleMate or second computer9-pin male4800Changeable

Parallel   Primary computer connection25-pin femaleN/AN/A

How to Change the DTE Port Baud Rate

You can change the baud rate of PowerBraille 40's DTE port to 9600 baud for 
the current working session only.  Do this by pressing and holding cursor 
routing button 40 (the last cursor routing button) while powering on the unit.  

This is not a toggle command.  The unit will stay at 9600 for the current 
working session.  As soon as you turn the power off to the PowerBraille 40 
unit, the baud rate for the DTE port will revert to 4800 for the next working 
session.  


PowerBraille 40 Self-tests

The PowerBraille 40 refreshable braille display unit has several power-on 
self-tests.  Below is a brief description of each.


Braille Cells Test

To test PowerBraille 40's braille cells, hold the left rocker bar UP while you 
turn the power switch to the ON position.  The unit will display the message: 
"braille display test."  



The braille cells will all go up and down eight times.  The first time they 
will end with all cells up.  The next time they will end with all cells down.  

To end the test, turn the unit off.  

Keypad Test

To test PowerBraille 40's panel keys, press and hold the concave key while you 
turn the power switch to the ON position.  The unit will display the message: 
"keypad test mode."  

Within 25 seconds, press each panel key once (press the rocker bars both up 
and down).  If they are all working properly, the unit will display the 
message: "keypad test ok."  

If you press more than one key at a time, PowerBraille 40 will display the 
message "keypad test error."  If you do not press all the keys within 25 
seconds, PowerBraille 40 will display the message "keypad test time out."  
This is also the message you will get if one of the keys is bad.  

To end the test, turn the unit off.  


Sensor Switches Test

Note: The sensor switches are the raised tactile dots above each braille cell.  
      In the Screen Power User Guide, we refer to these as cursor routing 
      buttons.

To test PowerBraille 40's sensor switches, press and hold the right rocker bar 
DOWN while you turn the power switch to the ON position.  The unit will 
display the message: "sensor switch test."  

Wait until all the pins on all cells are down.  Then press each sensor switch, 
one at a time.  It doesn't matter what order you press the sensor switches in, 
but you must press them all within about 15 seconds.  As you press each sensor 
switch, all eight dots will come up in the cell.  When you press the last 
sensor switch, the unit will display the message: "sensor switch test ok," and 
all dots will go down.  


Removing and Charging the Battery

It should never be necessary to remove or charge the PowerBraille 40 internal 
battery.  This NiCad (nickel-cadmium) battery automatically charges whenever 
the power supply is plugged in and the unit is off.  Even if there is no 
battery power left in the unit, you can still use it with the power supply.  
It will go from no charge to fully charged in less than 7 hours.  



WARNING!!         In an emergency, you can use alkaline batteries to supply 
                  power to your PowerBraille 40.  If you use alkaline 
                  batteries in the PowerBraille 40, you must NEVER plug in the 
                  AC Adaptor (the charger unit).  This will cause PowerBraille 
                  40 to overheat and severely damage its internal circuitry!  
                  This will void your warranty!!

If you ever do need to remove the battery, follow the instructions below.

1.    Be sure PowerBraille 40 is off and the power cord is not connected.  

2.    Turn the unit upside down.

3.    The battery is housed inside a long, rectangular plate on the bottom of 
      the unit.  The plate is held in place by two Phillips-head screws, one 
      on either end.  Remove these two screws.  

4.    Gently lift the plate out from the PowerBraille 40 unit.  The battery is 
      attached to the underside of the plate, in a protective sleeve.  Two 
      wires go from the battery pack to the inside of the unit.  DO NOT REMOVE 
      OR DISCONNECT THESE WIRES.  

5.    Lift the batteries out of the sleeve.  Note the embossed icons on the 
      inside of the plastic sleeve, under the batteries.  These icons indicate 
      the correct orientation to insert each battery.  

To replace the batteries, orient each battery according to the icons in the 
plastic sleeve, and secure the panel in place with the same screws.  If you 
have new NiCad batteries, allow them time to fully charge.  

If you ever need to replace the batteries in an emergency, use four 1.5V 
C-size alkaline batteries.  Be sure to replace them with four 1.5V NiCad 
batteries before plugging in the AC adaptor.  If you plug in the AC adaptor 
with alkaline batteries inside, PowerBraille 40 will overheat.

You will not need to remove the NiCad batteries to charge them.  These 
batteries charge automatically while PowerBraille 40 is off and the 
charger/adaptor is plugged into an outlet.  The braille display shows the 
power usage while it is charging.  The numbers count down to zero (in hours, 
minutes, and seconds).  When the numbers reach zero, the unit is fully 
charged.  


Trouble-shooting Information

The following information is intended as a guideline if anything goes wrong 
with your Screen Power system.  




Q:    What if my system hangs when I start Screen Power?

A:    There are two possibilities.  The more likely one is that the interrupt 
      or address for the synthesizer is incorrect, or the synthesizer is not 
      actually installed.  Re-check these settings, correcting and 
      re-installing the synthesizer if necessary.  Remember to turn off the 
      power to your system if you need to make changes on a synthesizer board 
      or remove it from the computer.  

      The second possibility is that you have two devices installed at the 
      same interrupt or address.  The solution is to set each device to a 
      unique setting, then re-install the device or Screen Power with the 
      correct information.  

Q:    What if my computer just beeps and Screen Power doesn't start?

A:    The beep is usually accompanied by a screen message that says 
      "Synthesizer error."  If Screen Power can't find the speech synthesizer, 
      it will not start.  If this happens, you won't even get braille output.  
      Check all the synthesizer connections.  Make sure the synthesizer is 
      plugged in, turned on, and connected to the correct I/O port.  You will 
      then need to re-boot your computer because once you have tried to load 
      the Screen Power software, even if it was unsuccessful, you cannot 
      easily load it again without re-booting.  If you try, you will probably 
      get a screen message that says "Screen Power already installed.  No 
      action taken."  

      This could also be cause by missing or improper device drivers, 
      especially with the DECtalk synthesizer.  Be sure you are using the 
      correct SP.BAT file (created by the Install program), or re-install 
      Screen Power with the correct information.  

      If you have an external synthesizer, try re-installing Screen Power 
      using the "Auto-detect" selection for synthesizer connection.  This will 
      allow Screen Power to automatically detect the correct port.  

      If Auto-detect doesn't work, it is probably because some other device 
      connected to the computer is confusing the auto-detection.  In this 
      case, try telling the Install program specifically which port to use.  

      Another possibility is that your computer's serial or parallel port 
      might not be working.  Try another serial or parallel port.  If you 
      change to a different port, use the SPIPORT utility to force Screen 
      Power to use the new port for the current working session.  After you 
      verify the port, re-install Screen Power for the new port.



Q:    What if the braille display works but I have no speech (or only I only 
      have speech sometimes)?

A:    There are several possibilities.  First check the volume on your 
      synthesizer speaker.  If the volume is down or the speaker is not 
      plugged in, you will not hear Screen Power.  Turn the volume to 
      mid-range and check the speaker connection.  

      If you sometimes have speech, but DOS prompts are not spoken, it is 
      possible that you do not have the ANSI.SYS device driver added to your 
      CONFIG.SYS file.  If your computer system did not already have ANSI.SYS 
      in the CONFIG.SYS file, and you told the Install program not to modify 
      the star-up files, then you will need to make a change.  Either add the 
      line yourself with an editor (add the line DEVICE=C:\DOS\ANSI.SYS) or 
      re-install Screen Power and let the Install program modify your start-up 
      files.

      If you have speech at the DOS level but no speech when you type while in 
      your application, your application probably does not accept keyboard 
      input through the BIOS, so Screen Power's Screen Mode voice cannot read 
      it.  The solution is to use the Keyboard Mode voice in your application.  
      To do this, go into the Screen Power menu system.  Go to the Keyboard 
      menu and ENABLE Keyboard Echo.  This is one thing our pre-set 
      WordPerfect environment does.  When you leave your application, DISABLE 
      Keyboard Echo, because if you leave both the Keyboard and Screen voices 
      on at the DOS level, you will get double vocalizations.  

Q:    What if I have speech output but the braille display doesn't work?

A:    There are several possibilities.  The braille display unit could be 
      turned off.  Check the power switch.  

      The braille display could be connected to the wrong I/O port.  Check the 
      connection for the braille display and the computer.  If you think it 
      might not match the information you gave the Install program, re-install 
      Screen Power and select "Auto-detect" for the braille display 
      connection.  This will allow Screen Power to automatically detect the 
      correct port.  

      If Auto-detect doesn't work, it is probably because some other device 
      connected to the computer is confusing the auto-detection.  In this 
      case, try telling the Install program specifically which port to use.  

      Another possibility is that your computer's serial or parallel port 
      might not be working.  Try another serial or parallel port, or try a 
      different device on the port you selected.  If you change to a


      different port, use the SPIPORT utility to force Screen Power to use the 
      new port for the current working session.  After you verify the port, 
      re-install Screen Power for the new port.  

      Be sure you are using the serial cable for the serial port, and the 
      parallel cable for the parallel port.  The serial port on PowerBraille 
      40 and Navigator are 9-pin female ports; the parallel port on 
      PowerBraille 40 is a 25-pin male port.  

Q:    What if I have some braille information but none of the panel keys work?

A:    Your braille display hardware (PowerBraille 40 or Navigator) is probably 
      connected to the same port as another device.  For example, you may have 
      connected PowerBraille 40 to LPT1, the first parallel port, but you may 
      have another device using the LPT1 interrupt request (IRQ).  The IRQ for 
      LPT1 is IRQ7.  If you have TeleSensory's Vista VGA in its default mode, 
      it uses IRQ7, so this can cause a conflict.  

      The solution is to move one of the devices to another port.  Either move 
      the braille display hardware to another port or change the IRQ setting 
      for Vista or the other device.  Many such devices require that you make 
      both a hardware (usually a jumper) and a software (usually a command 
      line option) change.  

Q:    What if I can't get Grade 2 braille on my braille display?

A:    You must load SPView2 to get Grade 2 braille output.  SPView2 is 
      TeleSensory's on-line Grade 2 braille translator.  The Screen Power 
      installation program asks if you want to install SPView2.  If you 
      answered No, you cannot get Grade 2 braille.  If you then try to load 
      SPView manually, after you loaded Screen Power, SPView2 will load BUT 
      WILL NOT WORK.  

      SPView2 must be loaded BEFORE Screen Power.  The SPView2 command line 
      comes just before the SPI command line in the Screen Power batch file 
      (SP.BAT).  The installation program does this automatically.  

      If you upgraded a Navigator from Gateway to Screen Power Integrated, you 
      must use SPView2 instead of the View2 program that came with your 
      Navigator.

      The solution to any of the above situations is to either re-install 
      Screen Power and select "Load Grade 2" or edit the SP.BAT file to load 
      SPView2 before SPI.  Note that the SP.BAT file is in both the root 
      directory and the Screen Power Integrated directory.  

      It is also possible that you deleted the panel key hotkey that executes 
      the Screen Power function "Enable Grade 2 Braille."  In default mode, 
      this is the PowerBraille 40 convex & concave keys


      (LEFT and RIGHT Execute on Navigator).  If so, you can select Grade 2 
      Braille Display Options (in the Braille Display Options menu) and select 
      Enable OR you can re-assign the panel key hotkey in the Panel Keys 
      Hotkeys menu.  Follow the instructions in Chapter 2 of the User Guide.  

Q:    What if my cursor routing buttons don't work?

A:    Some applications do not permit dynamic re-positioning of the cursor on 
      the screen.  These are usually low-level editors or programs that do not 
      provide full-screen access.  An example of this is DOS Edit.  

Q:    What if I can't load an application with Screen Power running?

A:    You probably do not have enough memory to run both Screen Power and your 
      application.  

      Screen Power is designed to use about 120K of expanded or extended 
      memory or a 200K swap file on your hard drive, taking only about 50K of 
      conventional memory for Screen Power.  This frees up more conventional 
      memory for running other applications.  If you don't have the necessary 
      expanded, extended, or hard drive space, all 400K or so of Screen Power 
      will go into conventional memory.  

      Screen Power will first look at the memory type you specified during 
      installation.  This is identified with a command line option in the 
      SP.BAT file (/X for expanded memory, /T for extended memory, or /F for a 
      file on the hard drive).  If it does not find enough of that type of 
      memory, or if you specified a memory type which you don't have, Screen 
      Power automatically uses its default setting, which is swapping to a 
      disk file on your hard drive.  If you do not have enough room on the 
      hard drive (about 200K) for the swap file, Screen Power goes entirely 
      into conventional memory and uses about 400K.  This makes it unlikely 
      that you will have enough conventional memory to run other applications.  

      The solution is to make sure you have enough expanded memory, extended 
      memory, or hard drive space for the swap file.  
      Another possibility is that you have other TSRs (Terminate and Stay 
      Resident programs) or device drivers loaded which are also taking up 
      memory.  The application you are attempting to use may require more 
      conventional memory than is available.  

      The solution to this is to eliminate some of the device drivers which 
      may be unnecessary, or load them high (refer to your DOS manual for 
      instructions).  Check your application to see if it can load with less 
      memory.  If you are not going to use Grade 2 braille, you can remove 
      SPView2 and save 20K or so.  









                                            Appendix A: Screen Power Utilities


Screen Power has several utilities to help you customize your system.  
Following is a description of each.


SPIREAD.COM

Screen Power has a text-reading utility program called SPIREAD.  You can use 
this program to read any ASCII text file.  It has special commands designed 
for reading text files using a refreshable braille display.  The SPIREAD.COM 
program was installed during the Screen Power program installation process.  
It is in your Screen Power directory.  

You can use SPIREAD to read all the Screen Power user documentation files.  
These files are named INSTALL.TXT, USERGDE.TXT, MENUREF.TXT, and CMMDSUM.TXT.  
The files on the Manual Disk are compressed until you install them, so you 
will not be able to use SPIREAD.COM to read the manual files without 
installing them.  

Unlike DOS's MORE and TYPE commands that do not give you much control while 
reading text files, the SPIREAD.COM program gives you many useful commands.  
It even has the capability to read files larger than the memory of your 
computer.  It will perform forward and backward searches through the entire 
document for any text string.  

To use SPIREAD.COM, type the word SPIREAD followed by a space followed by the 
name of the file.  In the following example, the file we want to read is 
called INSTALL.TXT (this is the name of the file that contains this document, 
the Installation Guide).  To read it, type:
 
      SPIREAD INSTALL.TXT, then press the ENTER key.

When loaded, the SPIREAD program immediately displays the first screen of 
information.  Line 25 (the last line on the screen) contains status 
information.  You can learn about the reading commands by pressing Function 
Key 1 (F1) to bring up the Help screen. These are the commands described on 
the SPIREAD.COM Help Screen:

      ENTER                         Continue to next page
      ESCape or F10                 Terminate
      HOME or T                     Restart from top of file
      END or B                      Skip to bottom of block
      PAGE DOWN or D                Scroll down one page
      PAGE UP or U                  Scroll up one page
      W                             Wrap long lines on/off
      7 or 8                        Strip or leave hi-bit
      P                             Printer on/off
      LEFT ARROW                    Scroll left 20 columns


      RIGHT ARROW                   Scroll right 20 columns
      UP ARROW                      Previous, up one line
      DOWN ARROW                    Next, down one line
      /TEXT                         Find text
      A or F3                       Find text again


SPICOLOR.EXE

Purpose: Forces Screen Power's menu system to use monochrome or color mode.

Format:  SPICOLOR /vc
         or
         SPICOLOR /vm

Remarks: This utility must be followed by either a /vc or /vm switch.  The "v" 
         refers to video; "c" is color mode; "m" is monochrome mode.  Only the 
         menu system display in the current working session is affected.  This 
         is a good way to force Screen Power's menu system to display in 
         monochrome mode without affecting any application programs.  

Notes:   You can also use the /vc or /vm switch as a command line option to 
         the SPI.EXE program file.  To do that, just add the switch to the 
         batch file that contains your SPI.EXE program file.  The file is 
         usually named SP.BAT.  If you start Screen Power in monochrome mode 
         and later want to switch to color mode, you should not re-run the 
         SPI.EXE program file.  Instead, use the SPICOLOR utility.


SPIPORT.EXE

Purpose: Forces Screen Power to use a specific communication port on the 
         computer.

Format:  SPIPORT /C1 or /C2 or /P1 or /P2

Remarks: The program name must be followed by a /c1 or /c2 or /p1 or /p2 
         switch.  The "c" refers to the computer's serial ports; "p" refers to 
         the computer's parallel ports.  Only the current working session is 
         affected.  Use this utility if you have loaded the SPI program but 
         the braille display hardware is not powered on or not connected to 
         the computer.  This will force Screen Power to find the braille 
         display hardware after the SPI program has been loaded.  

Notes:   If you change the communication port you use for the braille display 
         hardware, you should not use this utility to make the change.  
         Instead change the batch file.  Change the SPI program line in the 
         file to reflect the new connection.  Although you can use SPIPORT if 
         you change from one


         communication port to another, this is not the use it was designed 
         for.  It may not always find the port.  


In addition to the utilities listed above, two special programs, FINDPORT.EXE 
and STUB.COM, are used by our Technical Support Department if you have 
difficulty loading and running Screen Power.  Because these programs can 
re-configure your computer system, you should not use them without contacting 
Technical Support first.  





                                              Appendix B: Warranty Information


This assistive device is warranted to be specifically fit for the particular 
needs of you, the buyer.  If the device is not specifically fit for your 
particular needs, it may be returned to the seller within thirty days of the 
date of actual receipt by you or completion of fitting by the seller, 
whichever occurs later.  If you return the device, the seller will either 
adjust or replace the device or promptly refund the total amount paid.  This 
warranty does affect the protections and remedies you have under other laws.


Software Warranty

This program and all related materials are provided to you in an "AS IS" 
condition, without warranty of any kind, either express or implied, including 
but not limited to implied warranties of merchantability and fitness of a 
particular purpose.  The entire risk as to the quality of performance of the 
program and all related materials is assumed by you.  IN NO EVENT SHALL 
TELESENSORY BE LIABLE FOR ANY LOSS OF PROFIT OR ANY OTHER COMMERCIAL, 
INCLUDING BUT NOT LIMITED TO SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR OTHER 
DAMAGES.


Limited One Year Warranty on Hardware

TeleSensory warrants the hardware to be free from defects in material and 
workmanship, under normal and proper use, for a period of one year from the 
date of shipment by TeleSensory.  The liability of TeleSensory under this 
warranty is limited to the obligation to repair, or at its sole option, to 
replace without charge and with reasonable promptness, such defective product.  
This warranty applies only to hardware.

Repair and replacement of hardware shall be undertaken at TeleSensory's 
facility at 455 North Bernardo Avenue, Mountain View, California, 94043 or 
such other location as TeleSensory may designate from time to time.  The 
purchaser shall be responsible for all shipping charges in connection with 
warranty service.  This warranty shall be void if any defect or damage arises 
from causes beyond the control of TeleSensory such as fire, accident, neglect, 
abuse, acts of God, or environmental or electrical stress.  This warranty 
shall be void as to any product which has been tampered with or altered or 
which has been repaired or attempted to be repaired by those other than 
TeleSensory factory authorized service personnel.



IN NO EVENT SHALL TELESENSORY BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL OR 
SPECIAL DAMAGES.  AS SET FORTH ABOVE, TELESENSORY MAKES NO WARRANTIES, EXPRESS 
OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A 
PARTICULAR PURPOSE.


Disk Replacement Policy

TeleSensory warrants the magnetic media on which the software is supplied to 
be free of defects in material and workmanship under normal use for a period 
of 90 days from date of purchase.  If, during this 90-day period, the disk 
becomes defective, it may be returned to TeleSensory for a free replacement.  
For fastest service, please call or write for prior authorization.  Your sole 
and exclusive remedy if the disk becomes defective is limited to replacement 
of the disk as stated herein.
