Mini-Din To Db-25 Modem Cable - 3Com 2103R-CSDI Installation Manual

Figure A-1 identifies the pins that the 8-pin mini-DIN port uses.
Figure A-1 Mini-DIN Serial Port Pinouts

Mini-DIN to DB-25 Modem Cable

Table A-10 lists console port pinouts for the 3Com OpenHub
Cable (mini-DIN to DB-25 modem adapter cable).
Table A-10 Console Port Pinouts (Mini-DIN to DB-25 Modem Cable)
Mini-DIN
Pin Signal
1 DTR
2 Not Connected
3 TXD
4 GND
5 RXD
6 Not Connected
7 DCD
8 Not Connected
6 7 8
3 4 5
1 2
DB-25
Pin Signal
20 DTR
5 CTS
2 TXD
7 GND
3 RXD
4 RTS
8 DCD
17 RTXC
Cable Pinouts A-7
™
Management
Input/Output
Output
Output
Input
Input