PBL38610-2
Description
The PBL 386 10/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in PBX, Terminal adapters and other telemunications equipment. The PBL 386 10/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications. The PBL 386 10/2 emulates a transformer equivalent dc-feed, programmable between 2x25 Ω and 2x900 Ω, with short loop current limiting adjustable to max 65 m A. A second lower battery voltage may be connected to the device to reduce short loop power dissipation. The SLIC automatically switches between the two battery supply voltages without need for external ponents or external control. The SLIC incorporates loop current, ground key and ring trip detection functions. The PBL 386 10/2 is patible with loop start signalling. Two- to four-wire and four- to two-wire voice frequency (vf) signal conversion is acplished by the SLIC in conjunction with either a conventional CODEC/filter or...
