ADTRAN 3000 User Manual page 95
Adtran express 3000 user's manual
Hide thumbs
Also See for 3000:
- Hardware installation manual (84 pages) ,
- Quick configuration manual (6 pages) ,
- Application manual (4 pages)
Table of Contents
Advertisement
Auto-detect Switch SPIDs remains at Link
Down.
A Link Down condition persisting for longer than five minutes
indicates a problem with the ISDN line provided from the telephone
company. Usually, the ISDN physical layer device has been unable
to synchronize to the network.
1.
Verify that the Express 3000 is powered on.
2.
Verify that the provided ISDN telephone cable is correctly
installed between the Express 3000 and the ISDN wall jack.
a.
If the wall jack does not have ISDN installed on the two
middle pins (tip and ring), the Express 3000 will never syn-
chronize to the telephone switching equipment.
b. Call the local telephone company and have them check the
ISDN line for correct operation.
61203153L2-20
Express 3000 User Manual
Chapter 8. Troubleshooting
8-5
Advertisement
Table of Contents
