Case 1 – V.32 Backup For Subrate Dds; Tdm Backup - Paradyne 3610 Application Manual

COMSPHERE 3600 Series Data Service Units

TDM Backup

A point-to-point multiplexing circuit can be backed up
through the switched telephone network. There are five
possible configurations:
4-16
Figure 4-11. Case 1 – V.32 Backup for Subrate DDS
July 1999
Case 1 – V.32 Backup for subrate DDS
( Figure 4-11 ). If the DDS network is
out-of-service, the network management system can
initiate dial backup or, if configured for automatic
dial backup, the control or tributary DSU can
initiate dial backup. Once the link is re-established,
the TDM circuitry resynchronizes and data
transmission resumes at the same rate as the DDS
circuit. In the example below, the DSU-TDM is
running disruptive diagnostics with four ports
operating at 2400 bps.
3610-A2-GB41-70