beautypg.com

Interface cable – H3C Technologies H3C MSR 50 User Manual

Page 78

background image

2-58

Figure 2-72 SIC-1VE1 panel

The following table describes the LEDs on the SIC-1VE1 panel.

Table 2-46 LEDs for the electrical interface on the left of SIC-1GEC panel

LED

Description

LINK

z

ON means carrier signal is received;

z

OFF means no carrier signal is received.

ACT

z

OFF: No data is being received and transmitted;

z

Blinking: Data is being received and transmitted.

Interface cable

The interface cable of SIC-1VE1/SIC-1E1-F is a standard E1 G.703 which has two types: 75-ohm
unbalanced coaxial cable and 120-ohm balanced twisted pair cable. The following figure illustrates
these two types of cables.

z

75-ohm unbalanced coaxial cable

Figure 2-73 E1 G.703 75-ohm unbalanced coaxial cable

75-ohm unbalanced coaxial cable connects SIC-1VE1 with the DB-15 connector and the network end
with the BNC connector.

A pair of coaxial connectors is available for extending the E1 cable. Both ends of the connectors are
BNC receptacles that can be used to connect two 75-ohm unbalanced coaxial cables with BNC
connectors.

z

120-ohm balanced twisted pair cable

This manual is related to the following products: