Compaq Armada 110 Maintenance And Service Manual page 132

Connector Pin Assignments
Pin Signal
1 Carrier detect
2 Receive data
3 Transmit data
4 Data terminal ready
5 Signal ground
A–4
Table A-7
Serial
6 9
1
Pin
6
7
8
9
5
Signal
Data set ready
Ready to send
Clear to send
Ring indicator
Maintenance and Service Guide