同时，快速以太网也受距离的限制：铜线接口只支持终端站与中继器之间100米、中继器之间10米。

Also, fast Ethernet is hampered by distance limitations: Its copper interfaces only support distances of 100 meters between an end-station and a repeater, and 10 meters between Repeaters.

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中继器通过RS485总线将各种终端接入模块组成家庭内部通信网。

Relay forms inter-family communication network with various access modules using RS485 bus.

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根据的功能不同，将无线抄表的终端分成采集器、中继器(路由器)及集中器三部分来设计。

According to different functions, the wireless meter reading terminal separate into the collector, the relay (router) and the concentrator.

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