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Chapter 7. Test Menu
61202156L2-1 TDU 120e User Manual 7-11
TEST OFF
Turns off DBU tests.
FORCE BACKUP
Forces a backup regardless of time-of-day lockouts
or network conditions.
INTERFACE TST
Causes the external DCE to dial its stored number.
After the connection is established, the DBU sends a
test pattern to verify the backup network. This test
does not disrupt data or the primary network.
DBU DATA/CNTRL
Allows status of DCD and RI to be monitored while the
INTERFACE TST is on. If the dial up network is correctly
configured and dialed up, there should be an asterisk (*)
over DCD.
DBU TST RESULT
When an interface test is active, this screen will show the
total number of DATA blocks received and the number of
blocks with errors.
DS-1 (0.2) Menu Items
Loopback
L
OOPBACK
activates the loopback function on the base
DS-1 interface. The available loopbacks are:
Port Loopback
Towards the NI.
Line Loopback
Towards the PBX or other terminal equipment.
Cancel Tests
Use this menu selection to deactivate all active tests, in-
cluding tests on option modules.