Serial Interface Connectors - NEC POWERMATE VE - SERVICE MANUAL 05-1996 Service Manual

SERIAL INTERFACE CONNECTORS

Serial interface signals are output from the system board through two 9-pin COM port
connectors. The 9-pin, D-subconnectors are located at the rear of the system unit. Pin
locations and pin assignments for the serial interface connectors are shown in Table
Appendix A-2 and Figure Appendix A-2.
Table Appendix A-2 RS-232C Serial Port Connector Pin Assignments
Pin
1
2
3
4
5
6
7
8
9
Figure Appendix A-2 Serial Interface
Signal
Carrier detect
Receive data
Transmit data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Ring indicator
Connector Pin Assignments A-3