3Com Dual 56K manual Front Panel LED Indicator Definitions

		Hardware Description 17
Table 4 Front Panel LED Indicator Definitions (continued)
LED	Color	Description
COLL	Amber	Ethernet Collision Status. Flashes amber when some
		collisions are taking place on the Ethernet LAN.
		Off indicates that no collisions are taking place on the
		Ethernet LAN.
Ports 1-4	Green	Ethernet LAN Port Status. On indicates that the unit
		detects the Ethernet link integrity signal from an attached
		computer and operation is normal.

Flashes when the LAN Modem receives data on the associated port.

Off indicates that the unit does not detect the Ethernet link integrity signal. The Ethernet cable may not be properly connected or the cable may be the wrong polarity.

Back Panel Connector The back panel contains the connectors illustrated in Figure 6.

Description

10-30V DC	1	2
2A MAX		LINE 1 PHONE 1 LINE 2 PHONE 2
	3	4
	RESET	LAN

Figure 6 Dual 56K LAN Modem Back Panel

From left to right, the back panel consists of the following:

■Power: Connect the power module cable to this port.

■RESET: Press this button to re-initialize or factory re-set the unit (refer to Chapter 10 for instructions).

■LAN 1, 2, 3, and 4: Connect up to four computers (or a combination of computers and an external hub), to these four 10BASE-T Ethernet ports.

■LINE 1: Connect one of the provided RJ-11 analog cables from the wall outlet to this port.

■PHONE 1: Connect an external analog device, such as a telephone or fax machine, to this port.

■LINE 2: Connect the second RJ-11 analog cable from the wall outlet to this port.

■PHONE 2: Connect an additional external analog device, such as a telephone or fax machine, to this port.