User's Guide

Trouble clearing procedures 4-3
User guide NTXXXXXX Rel 3.0 Draft October 2000
Equipment failure. If the RSSI is identical to
the expected value, and
the alarm remains active
for a long period of time,
then a component may be
defective.
If necessary, replace the
ODU at the local site or
the far-end site.
Tributary N Rx AIS The Internet BWA
System 3200 is
receiving an AIS signal
from the far-end radio.
Defective customer
equipment at tributary N at
the far-end. The far-end radio
has a Tributary
N
Tx LOS
alarm at tributary N.
Verify customer
equipment. Replace if
defective.
AFC Loop OOL The automatic
frequency control (AFC)
loop is out of loop.
AGC Loop OOL The automatic gain
control (AGC) loop is out
of loop.
TX synthesizer OOL There is a failure of the
Tx synthesizer.
The Tx synthesizer is
defective.
Reset the Tx frequency.
Replace the ODU.
RX synthesizer OOL There is a failure of the
Rx synthesizer.
The Rx synthesizer is
defective.
Reset the Rx frequency
or replace the ODU.
Temperature
over-range or
under-range
The temperature of the
unit is above or below
the safe operating
range.
Frame-Alignment-W
ord (FAW) mismatch
The far-end radio is not
transmitting the correct
FAW (link ID).
The far-end radio was not
commissioned with the same
FAW as the local radio.
Commission the two
radios to have the same
FAW.
Table 4-1 (continued)
iBAR-100 system alarms
Alarm Explanation Probable cause Action required