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L3 Systems KB232 Manual

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KB232
PS/2 Keyboard
RS-232 Adapter
Part # SA0008
(Version 3.0)
Copyright 2003
L3 Systems, Inc.
Redmond

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Summary of Contents for L3 Systems KB232

  • Page 1 KB232 PS/2 Keyboard RS-232 Adapter Part # SA0008 (Version 3.0) Copyright 2003 L3 Systems, Inc. Redmond...

  • Page 2: Quick Reference

    Quick Reference Command Notes Field 1 = Terminal emulation: Simple. TTY, PC. ANSI, or VT Field 2 = Baud Rate Displays 9600, 4800,2400, or 1200. 9600 is default Configuration Field 3 = Parity String Even, E8, Odd. O8 or No Par (default) Field 4 = Keyboard LED Settings : “n”...
  • Page 3 Introduction The KB232 PS/2 Keyboard RS-232 adapter allows a PS/2 style keyboard to be connected to an RS-232 port of a computer or other equipment using RS- 232 communications. This allows the use of a standard “PC” type keyboard for embedded applications that only have RS-232 interfaces.
  • Page 4 7 of the RS-232 port of the equipment to which you are connecting.) The third solution is to use a keyboard that uses less power. L3 Systems sells a keyboard which will work on many RS-232 connections. This is available with the KB232 RS-232 Keyboard kit.
  • Page 5 KB232 PS/2 Keyboard RS-232 Adapter Connections KB232 RS-232 Serial Port Connector The KB232 adapter uses a standard RS-232 9-Pin female “D” connector that can connect directly to a “PC” computer’s serial port. The KB232 can power itself and the attached keyboard using active DTR and CTS signals on pins 4 and 7 of the connector.
  • Page 6 KB232 PS/2 Keyboard RS-232 Adapter Pin Signal KB232 Function Chassis Gnd RX (Receive) from RS-232 Output KB232 TX (Transmit) to RS-232 Input KB232 DTR or 9-12V DC RS-232 Input (Used Power to power the KB232 Adapter) Signal Ground Ground CTS or 9-12V DC...
  • Page 7 KB232 PS/2 Keyboard RS-232 Adapter KB232 Mini-DIN Connector The following connector shows the pin definitions for the KB232 Female 6-Pin Min- DIN connector and the mating keyboard Male 6-Pin Mini-DIN Connector. L3 Systems 5/19/2007...
  • Page 8 RS-232 communications of 9600 baud, 8 data bits, 1 stop bit and no parity. This can be changed, but the first time you talk to the KB232 you must use this setting. To verify the KB232 interface, we suggest using a serial terminal program such a Tera Term, Kermit, Hyperterm, Procomm, etc.
  • Page 9 KB232 PS/2 Keyboard RS-232 Adapter Commands The KB232 Adapter comes with a small set of commands that can be sent through the RS-232 port to configure operation. Typing “H<Enter>” on the RS- 232 terminal will list the commands that can be entered: :h<Enter>...
  • Page 10 Just typing “C<Enter>” on the RS-232 terminal will display the configuration string. Below is the “C” command showing the configuration string as shippe d with a new KB232 adapter: :C<Enter> Simple,9600,No Par,nc,2,20 The configuration string is in the following format: <Emulation><Baud><Parity><LEDs><Repeat Delay><Repeat Rate>...
  • Page 11 Repeat Rate – Keyboard key repeat rate. Valid values are from “00” (slowest, 2/second) to “31” (fastest, 30/second). Note: The Belkin keyboard provided with the KB232 RS=232 keyboard kit can adjust the repeat rate by holding down the “Turbo” key and the pressing the keys F1(slowest) to F7(fastest).
  • Page 12 KB232 PS/2 Keyboard RS-232 Adapter “CW” Configuration Write Command You can use the “C” configuration command to set options described on the previous page. To do this you type the C command with a string that has parameters in the same order as displayed: CW=<Emulation><Baud><Parity><LEDs><Repeat...
  • Page 13 The “V” command displays the version information of the KB232 program. :V<ENTER> KB232, Version 3.0x0, [C] L3 Systems, Inc. 2003 “L” Load Key Code Table The “L” command allows you to specify what ASCII characters are sent when a key is struck. The format of the command is: Lkk=aa,bb,cc…...
  • Page 14 KB232 PS/2 Keyboard RS-232 Adapter If the first byte of the ASCII bytes is between 81 and 86, this signifies that modifier key(s) SHIFT, CTRL and/or ALT are required: 81=SHIFT 82=CTRL 84=ALT 83=SHIFT & CTRL 85=SHIFT & ALT 86=CTRL & ALT To load the ALT-F2 key to send “Bye”:...
  • Page 15 KB232 PS/2 Keyboard RS-232 Adapter “E” Erase Key Code Table “E” Erases the Key Code Table. The following shows the “E” command followed by “P” command showing the empty table. :E<ENTER> :P<Enter> KC Bytes -- ------ “T” Test Keyboard The “T” command runs a test on the keyboard interface which cycles the LED indicators in a pattern.

  • Page 16: Emulation Settings

    KB232 PS/2 Keyboard RS-232 Adapter Emulation settings The “CW” (Configuration Write) command allows you to specify an emulation setting. Available selections are commonly used ASCII terminal emulations which support the non-ASCII keys on the keyboard. The ASCII key table on the next page shows the ASCII characters sent for each emulation type: “Simple”,...
  • Page 17 KB232 PS/2 Keyboard RS-232 Adapter ASCII Key Table NN/SS NN=non-shifted, SS=Shifted Emulation: Hex ASCII Characters sent Code Simple TTY ANSI Enter Space ' / " 27/22 27/22 27/22 27/22 27/22 , / < 2C/3C 2C/3C 2C/3C 2C/3C 2C/3C - / _...
  • Page 18 KB232 PS/2 Keyboard RS-232 Adapter ASCII Key Table (cont) NN/SS NN=non-shifted, SS=Shifted Emulation: Hex ASCII Characters sent Code KEY Simple TTY ANSI 61/41 61/41 61/41 61/41 61/41 62/42 62/42 62/42 62/42 62/42 63/43 63/43 63/43 63/43 63/43 64/44 64/44 64/44...
  • Page 19 KB232 PS/2 Keyboard RS-232 Adapter ASCII Key Table (cont) NN/SS NN=non-shifted, SS=Shifted Emulation: Hex ASCII Characters sent Code KEY Simple TTY ANSI 79/59 79/59 79/59 79/59 79/59 7A/5A 7A/5A 7A/5A 7A/5A 7A/5A [ / { 5B7B 5B7B 5B7B 5B7B 5B7B...
  • Page 20 KB232 PS/2 Keyboard RS-232 Adapter ASCII Key Table (cont) NN/SS NN=non-shifted, SS=Shifted Emulation: Hex ASCII Characters sent Code KEY Simpl ANSI 1B 5B 32 00 44 1B 4F 59 31 7E 1B 5B 32 00 85 38 7E 1B 5B 32...
  • Page 21 KB232 PS/2 Keyboard RS-232 Adapter ASCII Key Table (cont) NN/SS NN=non-shifted, SS=Shifted Emulation: Hex ASCII Characters sent Simpl Code KEY TTY PC ANSI Insert 00 52 1B 5B 40 1B 5B 48 Delete Home 00 47 1B 5B 48 1B 5B 48...
  • Page 22 KB232 PS/2 Keyboard RS-232 Adapter ASCII Hexadecimal Chart Char Hex Char Hex Char Hex Char Hex Char Hex NUL ^@ SUB ^Z SOH ^A ESC ^[ STX ^B FS ^\ ETX ^C GS ^] EOT ^D RS ^^ ENQ ^E...

  • Page 23: Specifications

    Authorization number (RMA) available on request from L3 Systems. Shipping costs (plus customs and duty, if any) to and from L3 Systems must be paid by the user. Damage or defect caused by accident, misuse or neglect is not covered. Damage or defect caused by shipping is excluded.
  • Page 24 ASCII characters assigned to keyboard keys. These are stored in non-volatile flash memory. v Draws power from RS-232 - The KB232 can be powered from RS-232 control signals to work without any other power source.