Customer premise network equipment and data communication method based on single ring configuration

In a customer premise network equipment which is directed to providing a customer premise network or a subscriber with a B-ISDN (Broadband Integrated Service Digital Network), wherein the improved equipment comprises:

• a plurality of subscriber terminals connected as one of one-to-one, one-to-multiple, and broadcast type between a network and a subscriber by a single ring, each of said subscriber terminals including:
• a terminal controller for controlling a protocol and signal access transmitted through the subscriber terminals;
• a service access unit interfacing with a direct service in accordance with a control of the terminal controller;
• a subscriber data controller for processing data from the ring and performing a relay/drop/copy function;
• and
• an AAL processing unit for;
• matching the cell dropped by the subscriber data processing unit with a proper type of a service type,
• transferring the matched cell to the service access unit and disassembling a service data requested by the service access unit into an ATM cell type;
• each of said subscriber terminal including:
• a drop function for transferring data from an ATM hierarchy to an upper hierarchy;
• an add function for transferring the data from the upper hierarchy to the ATM hierarchy;
• a relay function for feeding-back the data from the ATM hierarchy to a physical hierarchy;
• a copy function for concurrently performing the drop and relay functions;
• and customer premise network terminal equipment connected by a single ring for receiving a one-to-one protocol,
• implementing communication between the subscriber terminals;
• and providing access between the subscriber terminal and the network.