3Com 5000 manual Router to WAN, Connection, Introduction to the AUX port, AUX cable

Router to WAN Connection 31

Router to WAN	The Router 5000 provide multiple types of WAN interfaces, and the fixed
Connection	WAN interfaces include an AUX port and a WAN interface
	(synchronous/asynchronous serial interface). This section describes the
	connection of the two interfaces.

Connecting the AUX port to the Modem

Introduction to the AUX port

As an RS232-compliant asynchronous serial interface, the AUX port can be used as the backup of other WAN interface in the dial-up mode. In the event that the console port fails, the AUX port can serve as a console port. For the attributes of the AUX port, please refer to Table 14.

Table 14 Attributes of the AUX port

Attribute	Description
Connector	RJ45
Interface standard	RS232
Baud rate	300 bps to 115200 bps
Function	Modem dial-up
	Backup
	Operating as the console port when the CON fails
Protocol	PPP
	SLIP
	MP

AUX cable

AUX cable is an 8-core shielded cable. One end of the cable is an RJ45 connector, which can be plugged into the AUX port of the device. The other end is furnished at the same time with a DB9 (male) connector and a DB25 (male) connector. The user can choose either of them to plug into the serial port of Modem as needed.