ATM PASSIVE OPTICAL NETWORK OPTICAL NETWORK UNIT CONTROLLER

摘要

PURPOSE: An ATM passive optical network optical network unit controller is provided to use an arbitrary MAC method by externally outputting an enable signal for a mini-slot payload, receiving a byte input signal, carrying an arbitrary data on the mini-slot and transmitting it. CONSTITUTION: A cell receiving unit(50) receives a data to externally transmits an ATM cell through a receiving utopia interface unit, and transmits a message carried on a PLOAM(Physical Layer Operation And Maintenance) cell. A cell transmitting unit(52) receives the ATM cell through a transmission utopia interface unit to carry it on a permitted slot, and carrying a message in a standby state in a message processing unit on a payload of the PLOAM cell and transmits it upwardly and downwardly in case of transmitting the PLOAM cell. A message processing unit(54) processes received various messages to set an internal signal, instructs operations of a plurality of function blocks, and transmits a message requested from the plurality of function blocks through the cell transmitting unit(52).