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PBL38710-1

Ericsson
Part Number PBL38710-1
Manufacturer Ericsson
Description Subscriber Line Interface Circuit
Published May 6, 2014
Detailed Description February 1999 PBL 387 10/1 Subscriber Line Interface Circuit Description The PBL 387 10/1 ring SLIC (Subscriber Line In...
Datasheet PDF File PBL38710-1 PDF File

PBL38710-1
PBL38710-1

Overview
February 1999 PBL 387 10/1 Subscriber Line Interface Circuit Description The PBL 387 10/1 ring SLIC (Subscriber Line Interface Circuit) is a bipolar integrated circuit in 90 V technology which replaces the conventional transformer based analog line interface and ringrelay in FITL, WLL, ISDN-TA and other telecommunications equipment with a modern, compact solid state design.
Not only is required PCB area reduced, but less component weight and height result as well.
The PBL 387 10/1 has been optimized for low cost and to require only a minimum of external components.
The PBL 387 10/1 constant-current feed system, programmable to max 40 mA of line current, can operate with battery supply voltages down to -21 V to reduce line card power dissipation.
The SLIC incorporates loop current, ground key and ring trip detection functions.
Two-to four-wire and four- to two-wire voice frequency (vf) signal conversion is accomplished by the SLIC in conjunction with either a conventional CODEC/filter ...


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