Keyboard And Mouse Connectors - NEC POWERMATE PRO2180 - SERVICE MANUAL 1996 Service Manual

A-4 Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
9

KEYBOARD AND MOUSE CONNECTORS

The following figure shows the keyboard and mouse connectors on the system board. The
keyboard and mouse are PS/2-style connectors and can be plugged into either connector.
The system unit will detect their presence at power on. Table Appendix A-3 provides the
pin assignments.
Figure Appendix A-4 PS/2-Style Keyboard and Mouse Interface Connectors
Pin
1
2
3
4
Table Appendix A-3 Serial Interface Pin
Assignments
Signal Name
DCD
Serial In-
Serial Out-
DTR
GND
DSR
RTS
CTS
RI
6
4
2
Table Appendix A-4 Keyboard and Mouse Pin
Assignments
Signal Name
Data
No connection
Ground
+5 V (fused)
5
3
1