Número de pieza SP-155

Información de la pieza
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