Aviat Networks ECLIPSE EDGE, Руководство пользователя

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260-668080-001 Rev 002 March 2013 19
Eclipse Edge User Manual
DAC Alarms
Trib (#) AIS
AIS received on tributary. This is a warning alarm.
Probable Cause
AIS has been detected on a trib input due to an alarm condition within the connected
equipment, or upstream from the directly connected equipment.
Recommended Actions
Investigate the AIS source, first in the directly connected equipment, and then in its
upstream connections.
Trib (#) Line Facing Loopback
Trib data looped back to line. This is a warning alarm.
Probable Cause
A line-facing loopback has been established on a trib using commands in the Portal
System Controls screen.
Recommended Actions
To remove the alarm, deselect the loopback.
Additional Information
When a line-facing loopback is placed on a trib, the trib-in data is also allowed to pass
through to the TDM bus / radio.
Trib (#) Link Test Enabled
Trib built in link test applied. This is a warning alarm.
Probable Cause
The built-in BER test has been applied to a trib.
Recommended Actions
To remove the alarm, deselect the test.
Additional Information
In the link test mode traffic on the selected tributary is replaced by a standard 2
15-1
pseudo random bit sequence (PRBS) test pattern. Link BER from the received pattern
can then be estimated. The test is normally run with the remote radio in loopback.
Counters are provided for:
a) The number of errored bits while synchronized to the PRBS
b) The number of error free bits while synchronized to the PRBS
This test can only be applied to one tributary at a time.