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980-001-0210K
NetPath 100 User’s Manual - Installation Guide
6-29
November 2000
LED Indicator
Troubleshooting
The ISDN Adapter front panel LED indicators may also be used to troubleshoot a
problem. Table 6-7 describes the ISDN Adapter LED indicator’s normal states, and
some possible causes for abnormal indications.
.
Table 6-7 NetPath 100 ISDN Adapter LED Diagnostics
NetPath 100 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 NetPath 100.
OFF
---
ISDN Adapter fails Self-test.
Internal circuit fault.
Replace with known good NetPath 100.
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.
