Nortel Meridian Companion Installation And Maintenance Manual page 137

P0725810 Issue 3.0
The red light flashes for about 15 seconds when a Base
Station is powered up. This is normal. If the red light
continues to flash, it indicates that one of the following
problems may exist:
• The Controller or Base Station Module is not ON.
• The Base Station is not connected to the Controller or Base
Station Module.
• The Base Station radios have not been assigned to a cell.
• The wiring to the Base Station is not correct.
• The TCM wiring length between the Base Station and the
Controller (or Base Station Module) exceeds 1200 m.
• The two-way dc loop resistance of the power pair(s)
between the RPI and the Base Station exceeds 90 ohms.
Measure the loop resistance with an ohmmeter. If the
resistance exceeds 90 ohms, install a second power pair, or
power the Base Station with a plug-top power supply (see
Appendix E).
• There is a faulty Controller, Base Station Module, or RPI.
• The Base Station is faulty.
6. If none of the Base Stations connected to the RPI (or to one of its
power supply units) is functioning correctly, replace the RPI (or
power supply unit).
Note: The left power supply unit provides power through output
connectors OK1 to OK8 or OBIX1 to OBIX8, and the
right power supply unit provides power through OK9 to
OK16 or OBIX9 to OBIX16.
7. If only one or a few of the Base Stations seem faulty, see
"Troubleshooting a Base Station."
COMPANION 200 Installation and Maintenance Guide
Troubleshooting 138