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MGC Hardware and Installation Manual
4-39
The MPI-8 Network Interface Module
MPI is an acronym for the Multi Protocol Interface card. The MPI-8 is a serial
communications interface card that uses certain protocols to communicate to
endpoints, “Data Terminal Equipment” (DTE), or “Data Communications
Equipment” (DCE). The protocols that it uses are RS-449, RS-530, V.35, and
RS-366, which is a dialing protocol.
The MPI-8 Network Interface Module is connected to the DCE (supplied by
the customer) via the MPI box. The front panel of the MPI-8 network
interface contains two 160-pin connectors.
Figure 4-20: MPI-8 Network Interface Module front panel
Stby
Fail
Active
MPI
Connection to the
160-pin connector on
the front panel of the
MPI box
Connection to the
160-pin connector on
the front panel of the
MPI box