Multipoint Async-Compatible Network - Paradyne 3610 Application Manual

Multipoint Async Compatibility
The control DSU with the Single-Port Async/Sync
feature is compatible with earlier DSU releases that use a
TDM with the ports configured as a single port-sharing
group, as long as the control DSU's port speed and
port-sharing group port speeds are the same. Earlier DSU
releases from 4.xx to 5.xx can be accommodated as long as
the control DSU's software version is 6.xx; otherwise, the
units should be returned to the factory to be upgraded.
(Contact your authorized service representative to
arrange for your upgrade.) Figure 4-5 shows a compatible
configuration. Access the Status (Stat) branch and select
ID (Identity) to determine the DSU's firmware version
(DSU SW ver).
3610-A2-GB41-70
Figure 4-5. Multipoint Async-Compatible Network
July 1999
NOTE
For asynchronous ports to
operate at 1200 bps, individual
asynchronous port speeds
(Async Rate) for both the control
and tributary DSUs must be set
to =Sync when the port's
Single-Port Async/Sync
capability is enabled
(Async Sync: Enab).
Principles of Operation
4-9