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INTERNET ACCESS ROUTER
Appendix B: Fault Isolation and
Troubleshooting
Some common faults and their solutions are listed in
Table B-1
. If a persistent
fault occurs, confirm that the Internet Access Router is configured properly.
Link errors are sometimes caused by loose contact between connectors or
lack of cable continuity. Check that all conductors are plugged in properly
and that cable quality is good.
Table B-1. Troubleshooting Guide.
Symptom
Possible Cause
Recommended Course of
Action
All front-panel indicators
The unit is not
1. Check that power is
are OFF.
receiving power.
supplied to the unit.
Red LINK ERROR
In synchronous
Check the modem
indicator is blinking.
operation: Corrupted
configuration and cables.
frames are being
received, or the physical
connection is unstable.
Red LINK ERROR
The LINK ERROR
1. Check configuration
indicator is ON.
indicator will be ON
settings.
if the link is configured
2. Check the modem
in synchronous mode,
configuration and cables.
and no clock signal is
being received.
Red LAN ERROR
There is a temporary
Check cable connectors
indicator is blinking.
transmission problem.
and make sure that the
proper cable type is used.
Summary of Contents for LR0002A-B530
Page 21: ...22 INTERNET ACCESS ROUTER Figure 4 1 Connecting to the PTT Modem Internet Access Router...
Page 49: ...50 INTERNET ACCESS ROUTER 8 2 Setup Menu Figure 8 2 Advanced Menu Tree Setup Option...
Page 58: ...59 INTERNET ACCESS ROUTER 8 2 3 INTERFACE PARAMETERS Figure 8 9 Interface Parameters Menu Tree...
Page 62: ...63 INTERNET ACCESS ROUTER Figure 8 12 ISDN Options in the Advanced Menu...
