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11
Interface specifications
Table 16 Interface specifications
Item
Description
Connector type
D15
Number of connectors
1
Interface standard
•
G.703
•
G.704
Interface rate
2.048 Mbps
Cable type
•
75-ohm unbalanced coaxial cable (D15 to BNC)
•
Coaxial connector, network interface connector, and 75-ohm to 120-ohm
adapter
NOTE:
The default resister for the interface on the SIC-1EPRI is 75 ohm. A 75-ohm to
120-ohm adapter must be used when a 120-ohm cable is connected to the
SIC-1EPRI.
Operating mode
•
E1
•
CE1
•
ISDN
PRI
Supported service
•
Backup
•
Terminal
access
•
ISDN
Interface LEDs
Figure 12 SIC-1EPRI panel
Table 17 LED description
LED Description
LINK/ACT
•
On: Carrier signals are received.
•
Flashing: Data is being transmitted or received.
•
Off: No carrier signals are received.
LP/AL
•
On: The interface is in a loopback.
•
Flashing: An alarm indication signal (AIS), loss of frame alignment (LFA)
signal, or remote alarm indication (RAI) signal is present.
•
Off: Neither loopback nor alarm is present.
Interface cables and the connection methods
For more information about E1 interface cables and the connection methods, see "
."
Summary of Contents for MSR Router Comware 5 Series
Page 9: ...iv Index 209...