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Verifying the ISDN Line and That Data Can Be Passed Between DBMs
Procedure
1. Verify the ISDN line by checking the DBM Interface Status.
Main Menu
→
Status
→
DBM Interface Status
Line Status should be Active. If an invalid (Inv) status is displayed, verify that you
entered ISDN physical options correctly.
2. Check backup setup and that data can be passed between DBMs.
— Select Test, then ISDN Call/PVC Tests
Main Menu
→
Test
→
ISDN Call/PVC Tests
— Select the link to be tested.
— Start a Test Call. The Status should be Active.
— Wait as the originating DBM places the backup call. The originating unit’s Test
LED is on.
— Select Stop to end the Test Call.
See
Verifying Backup
Setup
in
Configuration
of the User’s Guide for additional
information.
Connecting the COM Port to the Router
If the Modem PassThru feature will be used, the terminal or PC must be disconnected
and the COM port connected to the router’s AUX port. A standard cable can be used.
See
Connectors, Cables, and Pin Assignments
in the User’s Guide for additional
information.
If the Result is . . . Then . . .
Frame Relay Link Up The call was successful.
Frame Relay Link
Suboptimal
Not all links have come up. Verify that the Maximum
Link Rate (Kbps) setting in the ISDN Link Profile is
the same at both ends.
Frame Relay Link Down The call was unsuccessful. Verify the configuration
and Link Status in the ISDN Link Profile.