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Paradyne CSU User Manual

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7. Operation and Maintenance
7-74
  
September 
2002
9128-A2-GB20-80
Verifying ISDN Lines
Use either of the following methods to verify operation of the ISDN lines.
„
Check the status of the DBM interface:
Main Menu
→
Status
→
DBM Interface Status
Line Status should display Active. If an invalid (Inv) status appears (e.g., Inv 
SPID for an ISDN BRI DBM) in the Line Status field, verify that you entered 
ISDN physical options correctly.
„
Check the status of the unit:
Main Menu
→
Status
→
System and Test Status
→
Health and Status column
System Operational
 should appear. 
If 
ISDN Network Failed
 appears, check that both ends of the ISDN cable 
are seated properly for a good physical connection. If that does not clear the 
message, verify that you entered ISDN physical option information correctly, 
then contact the network service provider.
 
 and 
for additional status information.
Verifying That Backup Can Take Place
As each remote site is installed, verify its backup operation by unplugging the 
network cable so the system is forced into backup. 
„
Verify the ISDN lines by checking the DBM Interface Status.
Main Menu
→
Status
→
DBM Interface Status
Line Status should be Active. If an invalid (Inv) status (e.g., Inv SPID) is 
displayed, verify that you entered ISDN physical options correctly.
„
Check backup setup and that data can be passed between DBMs.
„
Reconnect the network cable.
,
 
 for additional 
information.