A.1.2 Keyboard/Mouse Connector Signals; A.2 Reference For The Serial Port A And B Connectors - Sun Microsystems Enterprise 220R Service Manual

A.1.2 Keyboard/Mouse Connector Signals
Pin
1
2
3
4
5
6
7
8
A.2 Reference for the Serial Port A and B
Connectors
The serial port A and B connectors (J2902 and J2903, respectively) are DB-25 type
connectors located on the main logic board back panel. Both serial ports conform to
RS-423/RS-232 specifications.
232
Sun Enterprise 220R Server Service Manual
Signal Name
Gnd
Gnd
+5 VDC
Mse-rxd
Kbd-txd
Kbd-rxd
Kbd-pwk
+5 VDC
January 2000, Revision A
Signal Description
Ground
Ground
+5 VDC
Mouse receive data
Keyboard out
Keyboard in
Keyboard power on
+5 VDC