L3 Systems KeyAT-4 Manual
Text of the manual
L3 Systems, Inc.
Port Adapter
Redmond, WA
3
Systems
L3 Systems, Inc.
KeyAT-4
Part # SA0064
www.L3sys.com
Pb
RoHS
Computer
PS/2
Keyboard
Serial No.
2602249
RS-232
PS/2
all-guides.
com
Pin-outs: RS-232 Connector
2
PS/2 Connectors
Pin-outs: Keyboard/Computer Connectors
3
Command
Description
Pg.
Set to character mode
~C
Send ASCII chars
4
ASCII hex mode
~H
Send Hex ASCII chars
5
Keyboard code mode
~K
Send direct key codes
5
DOS scan code mode
~S
Send DOS scan codes
5
Turn off Command
KeyAT-4 Keyboard Port Adapter
L3 Systems
1
5/19/2007
Introduction
The KeyAT keyboard port adapter allows you to send keyboard keystrokes to a
computer via an RS-232 interface. It can also be used to convert a PS/2 keyboard to
send RS-232 data. Typical uses for the KeyAT are:
• Testing software - With the help of a KeyAT, you can send keys that
simulate use
KeyAT-4 Keyboard Port Adapter
5/19/2007
2
L3 Systems
Status Indicator
A red status indicator located on the side of the KeyAT indicates port activity. It turns
solid red when the attached keyboard port is being used. It blinks whenever the RS-232
port is active.
Serial Port Connector
The port is configured as a DCE device (it connects to a computer like a
KeyAT-4 Keyboard Port Adapter
L3 Systems
3
5/19/2007
KeyAT Keyboard & PC Mini-DIN Connector
The following connector shows the pin definitions for the two 6 pin Min-DIN connectors.
If the application is an RS-232 keyboard, the computer Mini-DIN connector can be used
to provide 5 volts power.
K1 Jumper
K1 connects DB-9 Pin 9 to 5 volts. This can be used to pow
