Avaya 1000 Series, Reference

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The NT6D70 SILC Card is a standard-size circuit card designed to be inserted in slots in the
Media Gateway and Media Gateway Expansion. Its faceplate is equipped with an LED to
indicate its status.
Power consumption
Power consumption is +5 V at 800 mA and –48 V at 480 mA.
Power consumption is +5 V at 800 mA and -48V at 480 mA.
Power consumption is +5 V at 800 mA and –48 V at 480 mA.
Foreign and surge voltage protections
In-circuit protection against power line crosses or lightning is not provided on the SILC card.
When the SILC card is used in TIE trunk applications in which the cabling is exposed to outside
plant conditions, an NT1 module certified for such applications must be used. Check local
regulations before providing such service.
In-circuit protection against power line crosses or lightning is not provided on the SILC card.
When the SILC card is used in TIE trunk applications in which the cabling is exposed to outside
plant conditions, an NT1 module certified for such applications must be used. Check local
regulations before providing such service.
In-circuit protection against power line crosses or lightning is not provided on the SILC card.
When the SILC card is used in TIE trunk applications in which the cabling is exposed to outside
plant conditions, an NT1 module certified for such applications must be used. Check local
regulations before providing such service.
Functional description
The NT6D70 SILC card provides eight S/T four-wire full-duplex polarity-sensitive interfaces to
connect ISDN BRI-compatible terminals over Digital Subscriber Loops (DSL) to the system.
Each S/T interface provides two B-channels and one D-channel and supports a maximum of
eight physical connections that can link up to 20 logical terminals on one DSL.
A logical terminal is any terminal that can communicate with the system over a DSL. It can be
directly connected to the DSL through its own physical termination or be indirectly connected
through a common physical termination.
The length of a DSL depends on the specific terminal configuration and the DSL wire gauge;
however, it should not exceed 1 km (3,280 ft).
The SILC interface uses a four-conductor cable that provides a differential Transmit and
Receive pair for each DSL. The SILC has options to provide a total of two watts of power on
Functional description
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