Description

The MH89626C SLIC provides all of the functions required to interface 2-wire off premise subscriber loops to a serial TDM, PCM, switching network of a modern PBX. The MH89626C is manufactured using thick film hybrid technology which offers high voltage capability, reliability and high density resulting in significant printed circuit board area saving of the line cards. A complete line card can be implemented with very few external components.

Features

• Transformerless 2-4 wire conversion

• Constant current with constant voltage fallback for long loops

• Long length capability (RLoop > 1850Ω)

• Input impedance

• 200Ω + 560Ω // 0.1µF (MH89626C-02)

• 200Ω + 680Ω // 0.1µF (MH89626C-04)

• Ring trip filter with auto ring trip

• Three relay drivers

• Built-in Tip/Ring reversal capability on the hybrid

• Serial control interface

• External or software programmable receive gain, -3.5 or -7.0dB

Applications

• Off-Premise PBX Line Cards

• DID (Direct Inward Dial) Line Cards

• Central Office Line Cards