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UOTEK Industrial RS-485 2 Ports Repeater Optical Isolation RS485 Trunk Circuit Half Duplex ESD Lightning Surge Protection UT-520

UT-520 is a repeater with optoelectronic isolation. It complies with RS-485 standards; it extends the communication distance of RS-485 BUS networking, increases the quantityof RS-485 networking devices. The built-in optoelectronic isolator and DC/DC isolated module can provide as high as 2,500Vrm isolated voltage; the fast instant voltageres traint is designed to protect 2 ports RS-485 interface; it adopts advanced TVS (TRANSIENT VOLT AGE SUPPRESSOR) instant voltage restraint; normally , TVS tube is in high impedance state; when both sides of TVS tube suffer from high power impact in a sudden, the voltage restraint will fast lower the impedance from both sides, and absorb in big current; with this, the voltageon both sides are fixed at presupposed value, protects the component of circuit from damage.

This voltage restraint provides each wire 600W with lightning and ESD protection, and surge voltage and instant overvoltage protection on

circuit which causing by all reasons; the tiny interelectrode capacitance ensures high speed transmission for RS-485 ports. Both RS-485 input & output adopt terminal block connector.

This repeater iswith built-in zerodelay auto receiving and transmitting conversion and uniq ue I/O circuit auto control data flow direction without any handshake signal (RTS, DTR); there is no need jumper wire setting for 2 ports half duplex (RS-485) mode, plug & play.

UT-520optoelectronic isolated repeater provides connection for point to point, point to multipoint communication. For point to multipoint mode, each repeater is allowed to connect 128 sets or RS-485 devices. The baud rate is 300-1 15.2Kbps. The power and data flow indicators indicate the working status.

UT-520 Parameters