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• supports loopbacks between the DDI Mux and the internal BCM components, and between the
DDI Mux and digital terminal equipment
The following figures provide examples that use internal and external routers with the DDI Mux.
Figure 163 Network overview: DDI MUX connected to 1000 hardware internal router
Note: The DTE cable that connects the BCM 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.
Service Provider/
PSTN
T1 mux service
DTE cable
Switch/Hub
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