Connecting The Aux Cable (Optional); Connecting The Com Cable - 3Com S7906E Getting Started Manual

Table 3-1 Console cable pinouts
Pin (RJ-45)
1
2
3
4
5
6
7
8
Connecting the console cable
Take the following steps to connect the console cable, when configuring the switch on the terminal.
1) Plug the DB-9 female plug of the console cable to the serial port of the PC or the terminal where the
switch is to be configured.
2) Connect the RJ-45 connector of the console cable to the console port of the switch.

Connecting the AUX Cable (Optional)

The AUX cable is used for the remote Modem dial-up configuration for the S7900E series.
Introduction
The AUX cable is an 8-core shielded cable. One end is an RJ-45 RS-232 connector, which can be
plugged into the console port. The other end is furnished with a DB-9 connector, which can be plugged
into the DB-9 socket on the Modem. The AUX cable is the same as the console cable. For details, see
Figure 3-14 and
Connection procedure
Follow these steps to connect the AUX cable:
1) Plug the RJ-45 connector of the AUX cable into the console port.
2) Plug the DB-9 connector of the AUX cable into the serial port of the analog Modem.

Connecting the COM Cable

Introduction
When connected to an external PoE power supply, the S7900E series can monitor the running status of
the external PoE power supply through the COM port. The COM ports (one RS-485 port and one
RS-232 port) of the S7902E and the S7903E-S are located on the rear panel of the chassis.
When the S7903E, S7906E, S7906E-V, or S7910E provides PoE supply through the PSR1400-D, they
can monitor the running status of the PoE supply through the PoE monitoring port (one RS-485 port) on
the PSR1400-D.
Signal
RTS
DTR
TXD
SG
SG
RXD
DSR
CTS
Table 3-1.
Pin (DB-9)
8
6
2
5
5
3
4
7
3-12
Signal
CTS
DSR
RXD
SG
SG
TXD
DTR
RTS