Nortel DCT1900 Technical Product Manual page 387

B
Fault 37?
No
Check air interface
sync provider
Out of order
or reset?
No
Check sync input
cable connection at
CPU and SDB.
Connection
correct?
Yes
CPU
Maint-DCT1900/R8/mw
© 2000-2005
No multiframe
synchronization
Error in MS/PBX Digital
Yes
Trunk Controller
Excessive noise on
trunk cabling
Fault 41
System is not synchronized
and when the air interface
sync provider is up and
running:
Yes
Wait until
synchronization is
acheived (might take a
while) or
Force synchronization
by system reset
(ongoing calls are
dropped)
Sync input cable
No
connection
SDB
Technical Product Manual - DCT1900
Maintenance, Fault Finding Procedures
6-5