Paradyne COMSPHERE 3550 Series, User Manual

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Configuring the Unit
5-21 3550-A2-GB20-40 July 1999
Table 5-9
(1 of 2)
Backup Configuration Options
Auto Bckup:Disab
Next Enab Disab Prev
Automatic Backup (only displayed when a DBM is installed, or an external DBU is configured to originate backup).
Controls automatic initiation of a call setup attempt to a remote DBM or modem when there is a failure of the DDS
network. (Automatic dial attempts begin after the Network Time-out expires.)
Enab — Select to initiate backup when there is a failure of the DDS network. The DSU waits for a period equal to
DDS Time-out, and if the DDS network is still down, it attempts to establish a dial backup connection to
the remote DBM.
Disab — Select so that no automatic dial backup connections are attempted.
Backup Dir: 1
Next Chang Prev
Backup Directory (only displayed when a DBM is installed). The DBM can store 10 telephone numbers or dial strings,
identified by the numbers 1 through 10. Selecting the Backup Directory identifier displays the telephone number stored in
that directory.
Chang — Select to enter or change the telephone number that is displayed.
FacAlOnCMI:Disab
Next Enab Disab Prev
Facility Alarm on Control Mode Idle (only displayed when Full Mode is enabled, when a DBM is installed, or an external
DBU is configured to originate backup). Determines whether the DSU treats a control mode idle (CMI) condition as a
facility alarm to trigger automatic dial backup. Configuration option
Auto Bckup must be enabled, and RTS Cntrl set to
FrcOn.
Enab — Select if the DSU should try and attempt to establish a dial backup connection to a remote DSU after the
Network Time-out.
Disab — Select if a dial backup connection should not be attempted when CMI is detected.
AutoRestor:Disab
Next Enab Disab Prev
Automatic Restoration. Controls whether the DSU automatically terminates the dial backup call when the DDS circuit has
returned to service.
On point-to-point circuits, a Digital Test is run to verify the DDS network. If the Digital Test is successful, user data is
switched back to the DDS circuit.
For a multipoint network with dedicated multipoint dial backup, each tributary may be configured for
Auto Restor, but will
not occur unless backup was initiated by the tributary. The DDS network is not verified before data is switched back to
the DDS network.
Enab — Select if restoral of the DDS circuit should trigger automatic restoration (after the Restoration Time-out
expires).
Disab — Select if restoral of the DDS circuit is not to trigger automatic restoration.
NtwkTimOut: 0:20 for a control DSU; 01:00 for a tributary DSU
Next Chang Prev
Network Time-out (only displayed when Full Mode is enabled). Specifies the length of time the DDS network must
remain out of service before the dial backup call attempt sequence is made. (
Auto Bckup must be enabled.) When
configured for nondisruptive diagnostics, rate adaption, or if TDM/Flex is enabled, this configuration option must be set to
greater than or equal to 20 seconds.
Chang — Select to enter or change the current settings, which can range from 1 second to 30 minutes. The cursor
has two positions: a minutes field with a range of 0 to 29, and a seconds field with a range of 00 to 59.