3com 3C886 Manual De Usuario

The back panel provides the following components.

Figure 10   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 the unit.

■

Line: Connect the provided RJ-11 analog line from the wall outlet to this port.

■

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

■

Four 10BASE-T Ethernet Ports: Connect the computers on your LAN, or an 
external hub, to these ports.

This section describes how to do the following.

■

Install the analog cable

■

Connect to a 10BASE-T Ethernet LAN

■

Install analog equipment

■

Install the power cable

Before you begin, you will need the following in addition to the 56K LAN Modem:

■

RJ-11 (6-pin) to RJ-11 (6-pin) telephone cable which was provided in your 
modem package.

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 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.

Table 4   Front Panel LED Indicator Definitions (continued)