1-14
RJ-45 pin
Signal direction
DB-9
Signal
4
Å
1 DCD
5 — 5 GND
6
Å
3 TXD
7
Å
4 DTR
8
Å
7 RTS
For the connection of the console cable, refer to the section talking about connecting a console cable in
Chapter 4 “Installing the Firewall.”
AUX port
1) Introduction
The AUX port is an RS232 asynchronous serial port used for remote configuration or dialup backup.
You need to connect the local modem to the remote modem through the PSTN to reach the remote
device for remote system debugging, configuration, maintenance, and management. In case that the
console port is faulty, the AUX port can be connected to a terminal as a backup port of the console port.
For details, refer to Chapter 8 “Troubleshooting.”
2) Technical
specifications
Table 1-17
Technical specifications of the AUX port
Item
Description
Connector type
RJ-45
Compliant standard
RS232
Baud rate
9600 bps to 115200 bps, 9600 bps by default
Service
Connection to the serial interface of a remote PC through a pair of
modems to establish a dial-up connection with the remote PC
3) AUX
cable
The AUX cable is an 8-core shielded cable. The RJ-45 connector at one end of the cable is connected
to the AUX port on the firewall, and the DB-25 male connector or DB-9 male connector at the other end
is connected to the serial port on a modem as needed.
