Connecting The Aux Cable (Optional); Connecting The Com Cable; Connecting Category-5 Cables - 3Com H3C S7503E-S CHASSIS Installation Manual

Connecting the AUX Cable (Optional)

The AUX cable is used for the remote Modem dial-up configuration for the S7500E 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 3-17 and Table 3-1.
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

When the S7503E, S7506E, S7506E-V, or S7510E provides PoE supply through the PSR1400-D, they
can monitor the running status of the PoE supply through the PoE monitoring port on the PSR1400-D.
The PoE monitoring port on the PSR1400-D is an RS-485 port. You can select a proper connection
method for the RS-485 port according to the type of the PoE monitoring port on the external power
module.
When the S7500E series adopt only the –48 V DC power, but no external PoE power supply, it is
unnecessary to connect the COM port.

Connecting Category-5 Cables

Introduction to the RJ-45 connector
10Base-T/100Base-TX and 1000Base-T ports of the S7500E series use RJ-45 connectors, support
MDI/MDIX auto-sensing, and adopt category-5 cables. The following figure illustrates the appearance
and pinouts of RJ-45 connector.
Figure 3-18 RJ-45 connector
3-14