Dbu Criteria; Dbu Timers - ADTRAN Express 5200 User Manual

Chapter 9. Dial Backup Configuration
Weekend Lock
If enabled, no backup will occur from midnight Friday to midnight
Sunday.

DBU Criteria

With OOS
When enabled, the Express 5200 enters backup mode if an out-of-
service condition is detected. The factory default setting is E
With No RX
When enabled, the Express 5200 enters backup mode when a loss of
signal is detected. The factory default setting is E
With No SC
When enabled, the Express 5200 enters backup mode when a loss of
sealing current is detected. The factory default setting is E
With No LMI
When enabled, the Express 5200 enters backup mode when a loss of
signaling from the frame relay switch is detected. The default
setting is E

DBU Timers

Fail Timer
This option sets the amount of time the dedicated circuit failure
condition must be active before the Express 5200 attempts backup.
The amount of time, which is manually entered, can be up to 990
seconds. The factory default setting is 30 seconds.
Restore Timer
Once the DDS circuit is down, the Express 5200 remains in backup
until the DDS circuit is active for the length of time specified for the
R
ESTORE
set to 0, the DDS must be restored manually. The factory default
setting is 1 minute.
Redial Counter
This option sets the number of times the Express 5200 redials the
far end when entering backup mode. The R
is manually entered, can be up to a maximum of 99 attempts. If the
9-4
.
NABLE
T
. The selection is entered in minutes (up to 255). If
IMER
Express 5200 User Manual
NABLE
.
NABLE
.
NABLE
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EDIAL OUNTER
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.