HP 650 Installation Manual page 100

Signal
DCD
Rx
Tx
DTR
Gnd
DSR
RTS
CTS
RI
A-6
Cables and Adapters
Alternate Console-to-Modem Cable
(24542M)
Modem
Router (25-pin)
1
2
3
4
5
6
7
8
9
Signal
2 Tx
3 Rx
4 RTS
5 CTS
6 DSR
7 Gnd
8 DCD
20 DTR
22 RI