ADTRAN 3000 - Manual (Page 92)

Chapter 8. Troubleshooting
8-2 Express 3000 User Manual 61203153L2-20
PWR / LINE LED is off.
This indicates a problem with the power to the unit.
1.
Verify that the power cord is connected to the Express 3000, and
that it is plugged into a working 120 volt AC electrical outlet.
PWR / LINE LED flashes, and 1 and 2
LEDs are off.
This indicates a problem with the physical connection of the ISDN
line between the Express 3000 and the local telephone company.
1. Verify that the large end of the ISDN telephone cable (provided
with the Express 3000) is connected to the ISDN connector on
the rear panel of the Express 3000.
2. Verify that the small end of the same ISDN telephone cable is
connected to the ISDN telephone wall jack that is installed with
a Basic Rate ISDN.
3. If steps 1 and 2 do not solve the problem, contact your local tele-
phone service provider.
PWR / LINE LED, and 1 and 2 LEDs flash
green.
This indicates a configuration problem.
1. Verify that the following information has been correctly entered:
• Switch Type
• Service Profile Identifiers (SPIDs)
• ISDN Phone Numbers