| 摘要 |
PURPOSE: A processor board in a local router for a BSC(Base Station Controller) system is provided to improve the performance of a processor and offer various communication methods with external devices such as an Ethernet and an ATM(Asynchronous Transfer Mode) path by separately dividing a processor for performing only operation/maintenance function and a processor for performing only call process application process. CONSTITUTION: A DP(Dual Port) RAM(100) stores a call process application program, call process information, and an operation/maintenance program. An operation/maintenance process module(200) receives operation/maintenance data from a plurality of E1 cards(1), a plurality of optical interface units(2), and an ATM switch(3), accesses the operation/maintenance program stored in the DP RAM(100), and performs an operation/maintenance process operation. An ATM interface block(300) receives 64-bit call process data from the ATM switch(3) and converts the received 64-bit call process data into 53-bit data, and transmits the converted 53-bit data. The ATM interface block(300) receives 53-bit call process data, converts the received 53-bit call process data into 64-bit data, and transmits the converted 64-bit data to the ATM switch(3). A call process application process module(400) receives the 53-bit call process data from the ATM interface block(300), accesses the call process application program stored in the DP RAM(100), processes the call process data as a packet type, and transmits the packet type data to the ATM interface block(300). An Ethernet control unit(500) performs an Ethernet communication among a plurality of E1 cards(1), a plurality of optical interface units(2), the ATM switch(3), the operation/maintenance process module(200), and the call process application process module(400). A PCI(Process Communication Interface) bus(600) is a path for processing a PCI communication among the DP RAM(100), the operation/maintenance process module(200), the ATM interface block(300), the call process application process module(400), and the Ethernet control unit(500).
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