Multiple protocol personal communications network system

摘要: A bi-directional communications system for bypassing a telco local exchange carrier telephone conveying data between at least one terminal unit and switching that has the functionality of Class 5 central office switch is connected to public switched network. The includes relay transceiver where signals from units are converted bi-directionally signal format fixed length compliant ATM cells when other than cell format. In transmission interface there conversion time division multiplexed in upstream direction downstream direction, wherein toward units. Further, transfer unit. another embodiment present invention can be two each designed transmit receive different formats programmable