® MH88612C Subscriber Line Interface Circuit Preliminary Information Features • • • • • • • • • • Input impedance 200 Ω + 560Ω // 0.
1µ F 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 Power VBat Denial Wide Operating Range Programmable Receive Gain MH88612C ISSUE 4 April 1995 Ordering Information 20 Pin SIL Package 0° C to 70° C Description The SLIC provides a complete interface between a switching system and subscriber loop.
Functions provided include battery feed and ringing feed to the subscriber line, 2-Wire to 4-Wire hybrid interf...

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