Power Supply Connectors; Keyboard And Mouse Connectors - NEC POWERMATE 4100M Service Manual

A-6 Connector Pin Assignments

Power Supply Connectors

Voltages from the power supply are input to the system board through the power supply
connector. Figure Appendix A-6 shows the connector pin locations and pin assignments.
12
+5
Figure Appendix A-6 Power Supply Connector (P3/P4) Pin Assignments

Keyboard and Mouse Connectors

The keyboard and mouse use standard PS/2 connectors. Pin assignments are given in
Table Appendix A-6.
Table Appendix A-6 Keyboard (P1) and Mouse (P2) Connector Pin
Pin
1
2
3
4
5
6
P4
7
-5 GND
Assignments
Keyboard Connector
Keyboard Data
N/C
GND
+5V, 5a
Keyboard Clk
N/C
P3
6
GND -12 +12 +5
Mouse Connector
Mouse Data
N/C
GND
+5V, 5a
Mouse Clk
N/C
1
Power Good
Signal