3Com Router 3000 Series User Manual

Faceplate and LEDs Figure 20 illustrates the faceplate of the 1-port channelized E3 module.
Figure 20 Faceplate of the 1-Port Channelized E3 Module
The following table lists the meanings of the LEDs on the faceplate.
Cables The external interface provided by a 1-port channelized E3 module is two SMB
sockets respectively for Tx (Transmitter end) and Rx (Receiver end). The interface
uses the 75ohm unbalanced transmission mode and uses a pair of 75ohm
unbalanced coaxial cables to connect the peer device.
Figure 21 E3/T3 cable
Note:
1) The 1-port channelized E3 and 1-port channelized T3 modules use the same E3/
T3 cable.
Supported network protocol IP
IPX
Protocols supported X.25
Frame Relay
PPP
MP
HDLC
LAPB
Table 23 Features of the 1-Port Channelized E3 Module (continued)
Attribute Description
Table 24 1-Port Channelized E3 Module LEDs
LED Meaning
LINK OFF: The link is not set up.
ON: The link has been set up.
ACT OFF: No data is being transmitted or received.
Flashing green: Data is being transmitted and received.
BNC connector
SMB connector
3Com Router Release Notes for V1.20
34

3Com Router 3000 Series Specifications

General

Brand	3Com
Model	Router 3000 Series
Category	Network Router
Language	English