3Com Baseline Switch 2250-SFP Plus - Pin-Outs; Console Cable

C
PIN-OUTS
Console Cable
A Console cable is an 8-conductor RJ45-to-DB9 cable.
One end of the cable has an RJ-45 plug for connecting
to the switch’s Console port, and the other end has a
DB-9 socket connector for connecting to the serial port
on the terminal, as shown in Figure 71.
Figure 71 Console Cable
Table 1 Console Cable Pinouts
Direction B
B
8
1
Main label
A
Direction A
Pos 1
Pos 9
RJ-45 Signal Direction DB9
(modem)
DB9
(console)
1 RTS — 7 8
2 DTR — 4 6
3 TXD — 3 2
4 CD — 1 5
5 GND — 5 5
6 RXD — 2 3
7 DSR — 6 4
8 RTS — 8 7