DOC00101-01
5-13
Diagnostics and Troubleshooting
Base Station LEDs During Normal Operation
The Table 5-D explains how to interpret base station LED readings that
occur during self diagnostic tests that run during normal operation. The
LEDs must be read in combination to understand their meaning. The foot-
notes to the table contain troubleshooting suggestions.
Table 5-D. Base Station LEDs During Normal Operation
Test Failed
Red LEDs (in Combination)
1
2
3
4
ASIC test
1
1
Test the base station on another CTPhone Controller base station port
and with different transmit/receive cables.
off
off
off
on
Phase lock loop lock test
2
2
Reset the base station and test the base station on the other CTPhone
Controller base station port. You can reset a base station by unplugging
and plugging its transmit or receive cable. You can reset all base sta-
tions by resetting the CTPhone Controller.
on
off
on
off
Vocoder test
3
3
Reset the base station. You can reset a base station by unplugging and
plugging its transmit or receive cable. You can reset all base stations by
resetting the CTPhone Controller from the CTPhone Manager.
off
on
Vocoder # (0–3)
0: off
off
1: off
on
2: on
off
3: on
on
Synthesizer unlock test
4
4
Test base station transmit/receive cables by replacing the base station
with a functional one.
on
off
off
on
Waiting for configuration test
5
5
If persistent, make sure the CTPhone 1900 system has been activated
or check CTPhone Controller configuration. Also try resetting the
CTPhone Controller from the CTPhone Manager.
off
on
on
off
Phase lock loop initialization test
off
on
off
off
BS Interface clock test
on
on
off
off
Receive loss
6
6
Reset the CTPhone Controller and check transmit/receive cables.
off
off
on
on
Loss of control channel
7
7
Check for RF interference.
on
off
off
off
Summary of Contents for CTPhone 1900
Page 1: ...DOC00101 01 5 97 CTPhone 1900 System application manual...
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Page 3: ...ctphone 1900 system application manual...
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Page 87: ...DOC00101 01 4 13 CTPhone 1900 System Configuration...
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Page 117: ...DOC00101 01 6 9 CTPhone 1900 System Specifications...
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Page 132: ...Printed in USA...