Figure 44 Network Overview: Ddi Mux Connected To 2.5 Hardware Internal Router - Nortel BCM 3.7 Manual

162 Configuring the DDI Mux module
• provides end-to-end transparent bit service
• supports loopbacks between the DDI Mux and the internal Business Communications
Manager components, and between the DDI Mux and digital terminal equipment
Note: The DTE cable that connects the Business Communications Manager to the router
is ordered separately from the module. If you do not have this cable, ask your customer
service representative about how to obtain one.
The following figures provide examples that use internal and external routers with the DDI Mux.

Figure 44 Network overview: DDI MUX connected to 2.5 hardware internal router

DTE cable
N0008589 3.3
Switch/Hub
T1 mux service
Service Provider/
PSTN