Nortel Networks SONAR P0992639 01 Benutzerhandbuch
96 / Troubleshooting
Modular ICS Companion Installer Guide
P0992639 01
3. Verify that the red light is not flashing.
The red light flashes for about 15 seconds when a base
station powers up. This is normal. If the red light continues
to flash, one of the problems may have occurred:
station powers up. This is normal. If the red light continues
to flash, one of the problems may have occurred:
•
The ICS or Station Module is not ON.
•
The base station is not connected to the ICS or Station
Module.
Module.
•
The wiring to the base station is not correct.
•
The TCM wiring length between the base station and
the ICS or Station Module exceeds 1200 m.
the ICS or Station Module exceeds 1200 m.
•
There is a faulty ICS, Station Module, or RPI.
•
The two-way DC loop resistance of the power pairs
between the Remote Power Interconnect (RPI) and the
base station exceeds 75 ohms. Measure the loop
resistance with an ohmmeter. If the resistance exceeds
75 ohms, install a second power pair, or power the base
station with a plug-top power supply.
between the Remote Power Interconnect (RPI) and the
base station exceeds 75 ohms. Measure the loop
resistance with an ohmmeter. If the resistance exceeds
75 ohms, install a second power pair, or power the base
station with a plug-top power supply.
•
The base station is faulty.
4. Verify that the power cord of the RPI is properly connected
to a working AC outlet. If the base station is powered
locally, verify that the power supply is properly connected
to a working AC outlet and that the power supply cable is
properly connected to the base station power connector
locally, verify that the power supply is properly connected
to a working AC outlet and that the power supply cable is
properly connected to the base station power connector
5. If an external antenna is installed, verify that the external
antenna coaxial cable is properly connected to the BNC
connector of the base station and that the corresponding
radio is programmed to have an external antenna (see
Installing external antenna and lightning surge arrestor
procedures for the United States of America on page 37).
connector of the base station and that the corresponding
radio is programmed to have an external antenna (see
Installing external antenna and lightning surge arrestor
procedures for the United States of America on page 37).
Note: Ensure there are not any bridge taps on the TCM.