MH88631 Overview
The Mitel MH88631-1, 2 Central Office Trunk Interface circuit provides a plete audio and signalling link between audio switching equipment and a central office. The loop seize circuitry is controlled by an external input to provide either a loop start of ground start termination. The device is fabricated using thick film ceramic technology to achieve high density circuit design.
MH88631 Key Features
- Transformerless 2-4 wire conversion Line state detection outputs
- forward current
- reverse current
- ring ground
- tip ground
- ringing voltage Programmable audio transmit and receive gain Loop start or ground start termination Selectable 600 Ω or