Multipoint Transmission - Paradyne 3610 Application Manual

Multipoint Transmission

In multipoint transmission (Figure 4-1), a control DSU
is connected through the digital facility to multiple
tributaries communicating at the same rate. Traditionally,
a tributary site (often referred to as a drop) can transmit
data only when it is polled by the front-end processor
(FEP). The FEP, a communications computer associated
with a host computer, is the data terminal equipment
(DTE) at the control DSU.
3610-A2-GB41-70
as a tributary in multipoint transmission. A control 3610
or 3611 DSU provides diagnostic support for up to
40 addressable tributary devices using MCMP, multipoint
nondisruptive, or mixed diagnostics. Without diagnostics
and poll list, 254 addressable devices are supported.
to as a multipoint circuit.
Figure 4-1. Multipoint Transmission
July 1999
A 3600 Series DSU can be configured as a control or
A circuit employing multipoint transmission is referred
Principles of Operation
4-3