Dbu Criteria; Dbu Timers - ADTRAN Express 5210 User Manual

Chapter 10. Dial Backup Configuration

DBU Criteria

With OOS
When enabled, the Express 5210 enters backup mode if an out-of-
service condition is detected. The factory default setting is E
With No RX
When enabled, the Express 5210 enters backup mode when a loss of
signal is detected. The factory default setting is E
With No SC
When enabled, the Express 5210 enters backup mode when a loss of
sealing current is detected. The factory default setting is E
With No LMI
When enabled, the Express 5210 enters backup mode when a loss of
signaling from the frame relay switch is detected. The default
setting is E

DBU Timers

Fail Timer (FAIL TMR)
This option sets the amount of time the dedicated circuit failure
condition must be active before the Express 5210 attempts backup.
The amount of time, which is manually entered, can be up to 600
seconds. The factory default setting is 10 seconds.
Restore Timer (RESTORE TMR)
Once the circuit is down, the Express 5210 remains in backup until
the circuit is active for the length of time specified for the R
T
IMER
DDS or frame relay circuit must be restored manually. The factory
default setting is 1 minute.
Redial Counter
This option sets the number of times the Express 5210 redials the
far end when entering backup mode. The R
is manually entered, can be up to a maximum of 60 attempts. If the
Express 5210 encounters a busy or reorder signal, it attempts to
establish the call the specified number of times. The factory default
setting is 5.
10-4
.
NABLE
. The selection is entered in minutes (up to 60). If set to 0, the
Express 5210 User Manual
NABLE
.
NABLE
.
NABLE
ESTORE
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EDIAL OUNTER
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.