H3C Technologies H3C MSR 50 - Manual (Page 35)

2-15
Figure 2-13 SIC-2E1-F panel
The status description of the LEDs is given in the following table:
Table 2-14 Description of the LEDs on SIC-2E1-F panel
LED Description
LINK/ACT
z
ON means carrier signal has been received.
z
Blinking means data is being transmitted or received.
z
OFF means no carrier signal has been received.
LP/AL
z ON means the interface is in a loopback.
z
Blinking means an AIS, LFA, or RAI alarm signal is present.
z
OFF means neither loopback nor alarm is present.
Interface cable
Interface cables for SIC-2E1-F are standard E1 G.703 cables. E1 G.703 cables have two types: 75-ohm
unbalanced coaxial cables and 120-ohm balanced twisted pair cables. The appearance of the 75-ohm
unbalanced coaxial cable is shown as follows:
Figure 2-14 E1 G.703 75-ohm unbalanced coaxial cable
The 75-ohm unbalanced coaxial cable connects SIC-2E1-F with the DB-15 connector and the network
end with the BNC connector.
The SIC-2E1-F supports 75-ohm unbalanced coaxial cables only.