Backup Branch Menu Selections; Manual Backup; Placing A Backup Call; Manual Dds Restoration - Paradyne COMSPHERE 3550 Series User Manual

COMSPHERE 3550 Series Data Service Units
Current Backup
Backup Mode Command
Idle Bkup
Dial
Standby Disc
Dial
Dial Backup DrBU
DDS
External Backup ExtBU
DrBU

Manual Backup

You can control each step of a backup attempt by
following one of these procedures.

Placing a Backup Call

To place a backup call:
"
Procedure
1. Go to the Bkup option set under the Confg branch
and set Auto Bckup to Disab.
2. Select Bckup (Backup branch) to select a
telephone number from the Backup Directory.
If the telephone number in the Backup Directory is
the number you want to dial, go to Step 5.
3. Select Dial, the Backup Dir screen is displayed
identifying the Backup Directory indicator.
4. Select another telephone number to call:
Press the F1 key ( ) to increment the directory
indicator (e.g., 1 to 2).
Press the F2 key ( ) to decrement the indicator
(e.g., 2 to 1).
4-8
Table 4-2

Backup Branch Menu Selections

Dial out, establish, and switch to dialed link (Dial Backup mode).
Dial out and establish dialed link (Standby mode). (Data is routed over the DDS
circuit.)
Disconnect dialed link (Idle mode).
Switch data to dialed link (Dial Backup mode).
Disconnect dialed link and switch to private line (Idle mode).
Switch data to DDS (Standby mode).
If ExtBU in the ExtBU option set is set to Orig, this command is displayed (Idle
mode). Select this command to establish a backup call. When the backup call is
established, the DSU switches data to the dialed link.
Disconnect dialed link and switch to private line (Dial Backup mode).

Manual DDS Restoration

DDS service has been restored.

Manual Dial Backup Termination

July 1999
Effect
5. Select Dial (F2); the DBM places the call.
6. Once the dialed call has been established, select
!Dial to switch data to the dial path.
Data can be switched back to the DDS circuit once
"
Procedure
1. From the Bckup branch, select !DDS to restore
data traffic to the DDS circuit.
2. If the DDS circuit operates normally after the
switch, select DrBU to drop the backup circuit.
3. If the DDS circuit fails to perform reliably, select
!Dial again to quickly route data back over the
dialed connection.
If in Standby mode, select Disc.
If in Dial Backup mode, select DrBU.
If in External Backup mode, select DrBU.
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