DUPLEX SWITCH BOARD AND DUPLEXING METHOD

摘要

PURPOSE: A duplex switch board and a duplexing method are provided to decrease a power consumption being generated in a non-activated switch board by minimizing a system clock being supplied in the non-activated switch board using a system clock control unit in each dual switch board. CONSTITUTION: I/O bus interface units, switch units, control units, and system clock control units are connected to an I/O bus. Processor interface units are connected to a processor bus. The system clock control unit includes the below elements. A control status sensing unit(310) senses a status of a control unit and creates a value corresponded to a switch mode. An external processor status sensing unit(320) checks a status of an external processor and creates a value corresponded to the switch mode. A system clock unit(340) creates a clock in accordance with the value created through the control status sensing unit(310) and the external processor status sensing unit(320). A system clock control device(330) controls the clock of a switch board independently using values received from the control status sensing unit(310) and the external processor status sensing unit(320) and the clock received from the system clock unit(340).