Connector Pin Assignments A-3
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.
Figure Appendix A-2 Serial Interface
Table Appendix A-2 RS-232C Serial Port Connector Pin Assignments
Pin
Signal
1
Carrier detect
2
Receive data
3
Transmit data
4
Data terminal ready
5
Signal ground
6
Data set ready
7
Request to send
8
Clear to send
9
Ring indicator
