Bay Networks 5399 Manual page 54

Chapter 3 Determining RAC Status
Managing Remote Access Concentrators Using Annex Manager
3-18
Status Box
The box displays statistics for the T1 network interface.
PRI CSU Status
This box includes the following categories:
• indicates whether the T1 engine is detecting frame
Sync
synchronization. This field displays
detecting frame synchronization or
frame synchronization and entered the red alarm state.
• indicates whether the CSU is detecting pulses on the
Signal Loss
T1 network interface receivers. If the engine is not detecting
pulses, the T1 line transmits AIS (all ones, unframed) on the T1
network interface. This field displays
not detecting pulses and
•
Loopback Mode
– to show that the signal is not looped through the T1
NoLoop
engine.
–
LocalLoop
engine is looped back to the incoming side.
– to show that the incoming signal is looped to the
LineLoop
network without passing through the T1 engine.
–
PayloadLoop
through the T1 engine after it passes through the framing
function.
• identifies the T1 engine, using its firmware number,
Unit ID
firmware revision number, firmware release date, and EPROM
check sum.
True
False
when it is detecting pulses.
False
indicates loopback status. This field can display:
to indicate that the outgoing signal of the T1
to show that the incoming signal is looped
if the T1 engine is
if the T1 engine lost
when the engine is
True