Lucent Technologies SLC-2000 Access System Central Office Terminal, Инструкция по сборке

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363-208-010
Applications
Issue 5 May 1997
A-21
Small-scale Remote Terminal Applications
(Customer Premise)
Figure A-8B represents the connections to the SLC-2000 RT Bay utilizing the
J1C182BD Bulk Power and Ringing Shelf. This shelf should be equipped with
336A type Rectifiers and 3 type Ringing Generators with a Ring Control Unit
(AUG3).
Power
The J1C182BD shelf is equipped with a power cord which requires two 120v. input
feeds, each fused at 20 amps. These inputs can be 240v/120v single phase
circuit. The shelf can also be operated at a reduced 13 amp. load output using
only a single 120v., 20 amp. input. The 336A type rectifiers provide -48v. D.C.
outputs.
Connections from the shelf to the
SLC-2000 PIU -48v D.C. terminals must be field
assembled using 14 gauge wire and matching pins for the P100 plug which must
be provided separately.
Ringing
At least two external ringing supplies in a protected system should be provided,
each supplying -20Hz and +20Hz ringing current to the RT Bay. Figure A-8B
represents a typical arrangement utilizing the J1C182BD-1 Ringing Shelf
equipped with 3C type Ringing Supplies.
Connections from the shelf to the SLC-2000 PIU ringing terminals must be field
assembled using 20 and 24 gauge wire and matching pins for the P100 plug.
NOTE
:
Positive ringing voltage (+20Hz) is only required when multiparty circuits
are provisioned.