3Com Router 3000 Series Manual page 34

Faceplate and LEDs
Cables
3Com Router Release Notes for V1.20
Table 23 Features of the 1-Port Channelized E3 Module (continued)
Attribute
Supported network protocol
Protocols supported
Figure 20 illustrates the faceplate of the
Figure 20 Faceplate of the 1-Port Channelized E3 Module
The following table lists the meanings of the LEDs on the faceplate.
Table 24 1-Port Channelized E3 Module LEDs
LED
LINK
ACT
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
BNC connector
Note:
1) The 1-port channelized E3 and 1-port channelized T3 modules use the same E3/
T3 cable.
34
Description
IP
IPX
X.25
Frame Relay
PPP
MP
HDLC
LAPB
1-port channelized E3
Meaning
OFF: The link is not set up.
ON: The link has been set up.
OFF: No data is being transmitted or received.
Flashing green: Data is being transmitted and received.
module.
SMB connector