zhangxiaosan
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pm | | Huawei CC08 Switch Frame Bus Driver Board (19th Apr 18 at 4:38am UTC) | Quote Reply |
Huawei CC08 switch center switching network consists of two parts: data exchange and network control. It mainly completes the exchange of service data and voice. The C841BDR board is a single board of the central service switching network and is located in the AM network box. Its role is to drive the bus signals sent from the NCC board to each network board and provide test points for some system signals. Huawei CC08 switch C841BDR's main features are:
(1) Huawei CC08 switch BDR board drives the data bus, address bus, and control bus from the NCC board (CPC board or SPC board) to each network board for network control. The BDR board mainly completes the drive of 16-bit data bus, 20-bit address bus, and each control bus.
(2) The BDR board divides a set of buses sent from the NCC (CPC board or SPC board) into three paths, and drives all the way to the left half frame frame via the driver chip, and drives the right half frame frame all the way to each network board. Network control operation; another way to enter the EPLD of the BDR board to complete some maintenance and switching functions of the BDR board.
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