
RS-232-C Cable for HP 110
Minimum Pin-Out
HP110 end
9-pin male
Hub end
25-pin male
Tx
2
2Tx
Rx
3
3Rx
GND
7
7 GND
5 CTS
6 DSR
8 DCD
22 RI
23 DRS
Null-Modem Adapter
(use with a modem cable when connecting a terminal)
Minimum Pin-Out
Modem cable end
25-pin female
Hub end
25-pin male
2
3
4
5
6
8
20
7
2
3
4
5
6
8
20
7
OR
4
5
4
5
DTR (pin 20) and RTS (pin 4) must be on, or high, on your terminal or in your terminal
emulation program.
A-8 Cables and Connectors
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