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980-001-0240B FrameSaver NP 110 Users Manual - Installation Guide 6-49
November 2000
LED Indicator
Troubleshooting
The ISDN Adapter front panel LED indicators may also be used to troubleshoot a
problem. Table 6-12 describes the ISDN Adapter LED indicators normal states, and
some possible causes for abnormal indications.
.
Table 6-12 FrameSaver NP 110 ISDN Adapter LED Dia
g
nostics
FrameSaver NP
110 ISDN Adapter
LED Status
Condition Possible Cause(s)
ISDN
READY
LINE 1 - 4
STATUS
ON OFF NORMAL, No problem. Normal LED status for ISDN Adapter.
Flashing --- ISDN Adapter performing Self-
test.
Normal on power-up or reset, duration of test approx. 30
seconds. Successful completion sets ISDN READY
LED On steady.
Continuous cycles of flashing indicate critical internal
circuit fault. Replace with known good FrameSaver NP
110.
OFF --- ISDN Adapter fails Self-test. Internal circuit fault.
Replace with known good FrameSaver NP 110.
ON OFF ISDN facility is properly
connected, available, and
configured.
Normal indication after Configuration.
ON ON
Green
Indicates the associated
U-Interface for that line is active
(at least one of the B-Channels for
this interface are on line or looped
back).
Normal indication.
ON Flashing
Green
One or both B-Channels are either
initiating or answering a call.
Normal indication.
ON ON
Red
Loss of ISDN facility. Check ISDN facility.
ON Flashing
Red
1 Flash - B1 SPID incorrect.
2 Flashes - B2 SPID Incorrect.
3 Flashes - Both SPIDs incorrect.
Correct SPID configuration information.
NOTE: A table entry of --- means status of that LED is not relevant.
156


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