Keyboard/Mouse Or Tablet Port; Keyboard/Mouse Or Tablet Port Pin-Outs - Digital Equipment 300 Series AXP Reference Manual

Keyboard/Mouse or Tablet Port

Pin Layout The following figure shows the pin layout for the keyboard/mouse
or tablet port.
Table C–5 describes pin usage for the keyboard/mouse or tablet
Pin-Outs
port. The tablet, keyboard, and mouse interface use the same
physical port.
Table C–5 Keyboard/Mouse or Tablet Port Pin-outs
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1 8
9 15
Source Signal
GND
KEY.TX
Keyboard KEY.RX
+12V
GND
Mouse/tablet MSE.RX
MSE.TX
GND
GND
NC
NC
NC
+5V
-12V
GND
Keyboard/Mouse or Tablet Port
Description
Chassis ground
Keyboard transmitted data
Keyboard received data
Keyboard/tablet power
Chassis ground
Mouse received data
Mouse transmitted data
Chassis ground
Chassis ground
Not used
Not used
Not used
Mouse power
Mouse power
Chassis ground
C–7