SP-155

SP-155 Description

7.000 inches overall depth, 1.750 inches overall height, 19.000 inches overall width, mil star terminal remote end item identification.

Features

Telephone line converter module provides the talk battery, ring generation and off hook detection necessary to operate a standard telephone; also provides the ring detection and line seizure needed when connecting to a pbx station or co trunk; on board is a 2-wire to 4-wire hybrid that separates the transmit and receive audio paths; the board also contains a pulse code modulator and demodulator which converts the audio signals into a serial bit stream; the use of compandors further refine the quality of the audio; the output is 4-wire 600 ohm audio or synchonous serial data via a rs-422 interface; an onboard clock generator is provided (selectable data rate from 28kbps to 256kbps) or the system will accept an external clock signal