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Chapter 5. Configuration Menu
61202156L2-1 TDU 120e User Manual 5-27
Backup Testing
Selects the options for the automatic ISDN verifica-
tion feature of the Nx/DBU. Verification of the
backup circuit does not disrupt data on the T1.
Backup Test: Selects the frequency of automatic backup
circuit verification by the DBU.
Choices: M
ANUAL
, H
OURLY
, D
AILY
, W
EEKLY
Test Hour: Selects the hour of the day the Backup test will
occur.
Choices: 0 - 23
Test Day: If weekly Backup test is selected, selects which
day to perform the test.
Choices: M
ONDAY
- S
UNDAY
WKEND Lockout
If no backup is desired from midnight Friday to mid-
night Sunday, set this selection on O
N
; otherwise set
to O
FF
.
Choices: O
N
, O
FF
Enable HR: The hour backup will be enabled. Enter from
the numeric keyboard.
Choices: 0-23
Disable HR: The hour that the backup will be disabled.
Enter from the numeric keyboard.
Choices: 0-23
For these items to function properly, verify that the time and date in the
TDU are set correctly. See page 6-2 for instructions on setting date and
time.