ADTRAN TDU 120e Cancel Tests, Dbu Data/Cntrl, DBU TST Result, Port Loopback, Line Loopback

Models: TDU 120e

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Chapter 7. Test Menu

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

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, in- cluding tests on option modules.

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TDU 120e User Manual

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Page 107
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ADTRAN TDU 120e user manual Cancel Tests, Dbu Data/Cntrl, DBU TST Result, Port Loopback, Line Loopback