ATLAS 550 System Manual Section 6, CFG-001
61200305L1-1F © 2002 ADTRAN, Inc. 375
MANUAL: The ATLAS 550 will never initiate DBU until it is manually initiated.
•RESTORE CRITERIA
MANUAL: The primary link is restored only on manual command. This is the only option when
NET/DATA FAIl is selected for the Backup Criteria parameter.
NET SUCCESS: The primary link is restored when the network alarm clears.
•STARTUP DELAY
Length of time (in seconds) that determines how long to wait before implementing the DBU capabilities
after being configured.
•BACKUP DELAY
Length of time (in seconds) that determines how long the T1 must be in a fail state before dial backup
will take affect.
•RESTORE DELAY
Length of time (in seconds) that determines how long the main circuit must be restored before dial back-
up will switch off.
•MAX NUMBER OF RETRIES
Options are NONE, 3, 10, and UNLIMITED. This is the number of times the ATLAS 550 will redial if first
DBU connection fails.
•REDIAL TIMER
Length of time (in seconds) that determines how long to wait before retry.
•ENABLE SCHEDULE
This option will take you to a different screen where you can configure times that you will allow or not
allow the ATLAS 550 to go into DBU mode.
•TEST CALL
Options include HOURLY, DAILY, WEEKLY, BI-WEEKLY, or MANUAL ONLY. The ATLAS 550 can be set to
automatically place a DBU test call at any one of these times. If you do not wish for the ATLAS 550 to
use this feature, select
MANUAL ONLY.
•MIN DS0S
Specifies the minimum number of DS0s to use for DBU. This option should be set to 1 unless you are
trying to place a bonded call. Bonding requires that the BONDing Module be installed in the ATLAS
550.
•MAX DS0S
Specifies the maximum number of DS0s to use for DBU. The valid range for this field is 1-32.
