17
Connecting to the ISDN
This procedure only applies to a FrameSaver unit equipped with an ISDN DBM.
1. Insert the 8-pin connector on the ISDN cable into the DBM interface.
2. Insert the other end of the cable into the ISDN service jack.
– RJ49C for a FrameSaver unit with BRI DBM.
– RJ48C for a FrameSaver unit with PRI DBM.
3. Setup the unit at the other end of the ISDN circuit.
DSX
COM
POWER
MODEM NET
DBM
P
O
R
T
2
P
O
R
T
1
98-16236
RJ49C or
RJ48C
Jack
(FrameSaver 9128
Shown)
Verification Check:
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 for a BRI
DBM) is displayed, verify that you entered ISDN physical options correctly.
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.
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.
– Select Stop to end the Test Call.
See
Verifying Backup Setup in Configuration of the User’s Guide for additional
information.
