Rs-232-C Cable For; Null-Modem Adapter - HP 10:10 LAN Bridge MB Installation And Reference Manual

RS-232-C Cable for HP 110
Minimum Pin-Out
HP 110 end
9-pin male
Tx
2
Rx
3
GND
7

Null-Modem Adapter

(use with a modem cable when connecting a terminal)
Minimum Pin-Out
Modem cable end Bridge end
25-pin female 25-pin male
2
3
4
5
6
8
20
7
DTR (pin 20) and RTS (pin 4) must be on, or high, on your terminal or in your terminal
emulation program.
Bridge end
25-pin male
2 Tx
3 Rx
7 GND
5 CTS
6 DSR
8 DCD
22 RI
23 DRS
2
3
4 4 4
OR
5 5 5
6
8
20
7
Cables and Connectors A-7