BUILDING MANAGEMENT SYSTEM WITH ETHERNET CABLING FOR BUILDING DEVICES

原文（中国語）

A first building device is for use with a building system of a building. The building system includes second building devices coupled by an Ethernet cable. At least one of the second building devices is coupled to the first building device. The first building device includes transceivers which are configured for a respective one of a number of protocols. The first device also includes one or more circuits configured to connect to the Ethernet cable, determine a protocol for the second building devices, select a transceiver based upon the protocol, and communicate with the second building devices using the transceiver and the protocol.