Description

The SLIC provides a complete interface between a switching system and subscriber loop. Functions provided include battery feed, ringing feed and tipring reversal to the subscriber line, 2-Wire to 4-Wire hybrid interfacing, constant current feed and dial pulse detection. The device is fabricated as a thick film hybrid using various technologies.

Features

• Input impedance 600 Ω

• Transformerless 2-wire to 4-wire conversion

• Battery and ringing feed to line

• Off-hook and dial pulse detection

• Ring ground over-current protection

• Adjustable constant current feed

• Relay drive output with diode protection

• Power Denial

• Wide VBAT Operating Range

• Tip/Ring Reversal

Applications

Line interface for:

• PABX

• Intercoms

• Key Telephone Systems

• Control Systems