HP 2103R-CSDI - Manual (Page 74)

A-8 A P P E N D I X A: S P E C I F I C A T I O N S
Auxiliary Port
Pinouts
Table A-11 lists the cable pinouts for the auxiliary port on the Edge Router
module.
Mini-DIN to DB-25 Modem Cable
Table A-12 lists auxiliary port pinouts for the 3Com OpenHub Management
Cable (mini-DIN to DB-25 modem adapter cable).
Table A-11 Auxiliary Port Pinouts (DTE)
Pin Signal Input/Output
1 DTR Output
2 CTS Input
3 TXD Output
4 GND
5 RXD Input
6 RTS Output
7 DCD Input
8 Not Connected
Table A-12 Auxiliary Port Pinouts (Mini-DIN to DB-25 Modem Cable)
Mini-DIN DB-25
Input/Output Pin Signal Pin Signal
1 DTR 20 DTR Output
2 CTS 5 CTS Input
3 TXD 2 TXD Output
4 GND 7 GND
5 RXD 3 RXD Input
6 RTS 4 RTS Output
7 DCD 8 DCD Input
8 Not Connected 17 RTXC