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Door control system can link several communications sources, allows private selection of response
Door control system can link several communications sources, allows private selection of response
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机译:门控制系统可以链接多个通讯源,允许私人选择响应
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摘要
The door control system has fixed (32) and wireless (34) dwelling units (32,34) connected to door units (10,14), motion detectors (18) other communication units (24) and programming units (26) and a display screens (42,44) to show the source of a call.
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