The main function of the TD312P485H / D512P485H series is to convert a logic level signal into isolatedRS485 diferential level signals. The special integrated IC technology of the RS485 transceiver achievesisolation between the power supply and the signal lines isolation, does RS485 communication andprotects the bus allin one and the same module. The product's isolated power supplv withstands a testvoltage of up to 2500VDC. Products can achieve function of RS485 two-port network connection. Also.they can easilv be embedded in the user's end eauipment., to achieve fully functional RS485 networkconnections.