SIC-1VE1 47
Figure 40 SIC-1VE1 panel
The following table describes the LEDs on the SIC-1VE1 panel.
Interface Cable The interface cable of SIC-1VE1/SIC-1E1-F is a standard E1 G.703 which has two
types: 75-ohm non-balanced coaxial cable and 120-ohm balanced twisted pair
cable. The following figure illustrates these two types of cables.
■75-ohm non-balanced coaxial cable
Figure 41 E1 G.703 75-ohm non-balanced coaxial cable
75-ohm non-balanced coaxial cable connects SIC-1VE1 with the DB-15 connector
and the network end with the BNC connector.
nA 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
non-balanced coaxial cables with BNC connectors.
■120-ohm balanced twisted pair cable
Figure 42 E1 G.703 120-ohm balanced twisted pair cable
120-ohm balanced twisted pair cable connects SIC-1VE1 with the DB-15
connector and network end with the RJ-45 connector.
Table 22 LEDs for the electrical interface on the left of SIC-1GEC panel
LED Description
LINK ON means carrier signal is received;
OFF means no carrier signal is received.
ACT OFF: No data is being received and
transmitted;
Blinking: Data is being received and
transmitted.