CTP Systems CTPhone 1900, Applications Manual

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5-12 DOC00101-01
Diagnostics and Troubleshooting
Base Station LEDs During Power On/Reset
The Table 5-C explains how to interpret base station LED readings that
occur during power on or reset. The LEDs must be read in combination to
understand their meaning. The footnotes to the table contain troubleshoot-
ing suggestions.
Table 5-C. Base Station LEDs During Power On/Reset
Test Failed
Red LEDs (in Combination)
1 2 3 4
Memory test 1
1
1
Indicates a base station failure in most cases. Verify that the base sta-
tion power supply is stable by checking cable connections or replacing
transmit/receive cables or local power supply.
off off off blinking
Memory test 2
1
off off blinking off
Memory test 3
1
off off blinking blinking
BS Interface/processor test
2
2
Verify that the base station power supply is stable by checking cable
connections or replacing transmit/receive cables or local power supply.
off blinking off off
BS Interface external communi-
cation test
3
3
Check whether the base station transmit/receive cables allow another
base station to initialize.
off blinking off blinking
ASIC test
4
4
Verify power supply.
off blinking blinking off
Frequency test
5
5
Test the base station on the other CTPhone Controller base station
port and with transmit/receive different cables.
off blinking blinking blinking
Vocoder Initialization test
6
6
Try replacing the transmit/receive cables.
blinking off Vocoder # (0–3)
0: off off
1: off on
2: on off
3: on on
Signaling channel test
7
7
Reset the CTPhone Controller.
blinking blinking off off
Memory flash test
5
blinking blinking off blinking