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Chapter 7. Test Menu
61202156L1-1 TDU 120e User Manual 7-11
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) Option Ports
Loopback
Loopback 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,
including tests on option modules.