Paradyne COMSPHERE 3611 - Manual (Page 21)

COMSPHERE 3600 Series Data Service Units
3-6 September 1996 3610-A2-GB48-50
Backup Branch
The Backup (Bckup) branch controls operation of
digital bridging when a DSU with TDM or MCMP has
MUX Funct set to CBrdg or EBrdg.
496-12971-06
TOP-LEVEL MENU
Local Remot
Test Ctrl Stat
Msgs
Address
Confg
Bckup
Abort Bkup Dial DrBU Disc →Dial →DDS AggSw →Net I
For additional use of the Backup branch, refer to
Document No. 3610-A2-GB46 for network interface
aggregate switching and Document No. 3610-A2-GB49
for DBM information.
Digital Bridging
Use the Backup branch to configure a digital bridge.
Refer to Appendix C for configuration examples .
Central-Site Bridge
For a DSU configured as a central-site bridge (CBrdg),
the backup options available are Bkup and DrBU. Refer
to Table 4-3
for Digital Bridge Setup Configuration
Options .
•
Bkup (backup) is used to:
— Activate the bridge
— Disconnect DDS line from bridge
— Switch to the timing source specified by the
Bridge Timing configuration option
Do not initiate the Bkup option for a partial
multipoint backup.
•
DrBU (drop backup) is used to:
— Deactivate the bridge
— Connect the DDS line to bridge
— Switch to the DDS line using timing specified
by the DSU TxClkSource configuration option
For a DSU configured as a central-site bridge with the
Bridge Rate configuration option set to =DSU, the
following is an example of the display for partial backup
of a CBrdg.
F1
Brdg with DDS
Bkup
F2 F3
For a DSU configured as a central-site bridge with the
Bridge Rate configuration option set to a data rate, the
following screen appears. The DDS and backup data rates
can be different.
F1
Inactiv Brdg
Bkup
F2 F3
Extended Bridge
For a DSU configured as an extended bridge (EBrdg):
•
DSU/DBM is always in Dial Backup mode and no
Backup menu options appear
•
DBM circuit card should not be installed. If
installed, the DBM must be disabled
When in full backup, the following screen appears.
F1
Brdg w/o DDS
DrBU
F2 F3