To counter the problems existing in the establishing of MAN (metropolitan area network), the author puts forward fiber-optic cabinet, introduce its principle functions and application in MAN.

针对目前城域网建设中存在的问题，介绍光缆交接箱的原理、功能以及在城域网建设中的应用。

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We integrate the switch gear cabinet part and rectifier part besides the functions of switch cabinet this design also has rectifying control functions on solid-state H. F. welders.

将开关柜与整流部分实现一体化设计，除完成开关柜功能外，还具有固态高频焊机的整流控制功能。

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Unlike past models, the new system functions as a hybrid, with a mainframe housed on one side of a cabinet that is twice the size of a refrigerator and space for server blades on the other.

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