L3 Systems KeyAT, Manual

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KeyAT Keyboard Port Adapter
L3 Systems 15 5/19/2007
Status Request
~? Request Status
- The format of the response is:
AA-EELLDBTM where:
AA is the address setting, in Hexadecimal
EE is a error status: 00-No errors
01-Parity error
02-Framing error 03-Parity & Framing
LL LED status (bit field) 0=OFF, 1=ON
b0=Scroll lock b1=Num Lock b2=Caps Lock
D Data mode (C = char, H = Hex, K = Key code, S = Scan code)
B Binary or ASCII (A = ASCII, B = Binary)
T Turn Around (I = Immediate, L = Line oriented)
M Monitor mode (M = Monitor on, Q = Qwerty monitor, N = None)
Keyboard Commands
Do not send keyboard commands with other data, as this can
cause the keyboard to miss the command
~Dnn Set/Clear Keyboard LED’s - Use this command to turn
on or off local keyboard LED indicators. The nn field is
an ASCII hex encoded binary field, where:
b0=Scroll lock b1=Num Lock b2=Caps Lock
Examples: ~D01 Scroll Lock on, Caps & Num Lock off,
~D04 Caps Lock on, Scroll & Num Lock off,
~D00 Turn off all LEDs
~Xnn Send Data to Keyboard
- Use this command to send
the ASCII hex encoded byte nn to the keyboard. This
command requires technical knowledge of keyboards.
Test KeyAT
~T Test KeyAT
- This command to the KeyAT causes it to
undergo tests to validate the keyboard and computer
interface. You will see the keyboard LED’s cycle,
testing the keyboard interface. You should see numbers
0 to 7 cycle on the PC screen:
The serial port displays:
Test: <ENTER> to stop