H3C Technologies H3C MSR 50 - Manual (Page 32)

2-12
z
The SIC-1E1-F does not support the PRI mode.
Interface attributes
The interface attributes of SIC-1E1-F are given in the following table:
Table 2-11 Interface attributes of SIC-1E1-F
Attribute Description
Connector type DB-15
Number of connectors 1
Interface standard G.703, G.704
Interface rate 2.048 Mbps
Cable type 75-ohm unbalanced coaxial cable (DB-15 to BNC)
Operating modes
E1
CE1
Supported services
Backup
Terminal access
Interface LEDs
SIC-1E1-F panel is shown in the following figure:
Figure 2-10 SIC-1E1-F panel
The status description of the LEDs is given in the following table:
Table 2-12 Description of the LEDs on SIC-1E1-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-1E1-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: