HEUS-T-036 is a universal USB to RS-485/422 converter, which has built-in photoelectric isolator and DC/DC power isolated module. It complies with USB, RS-422, and RS-485 standards and converts single side USB signal to a balanced differential RS-422 or RS-485 signal. The built-in photoelectric isolator can provide as high as 2,500 Vrms isolated voltage. The fast transient voltage suppression is designed to protect RS-485/422 interface. This model adopts advanced TVS (TRANSIENT VOLTAGE SUPPRESSOR). Normally, TVS tube is in high impedance state, and when both sides of TVS tube suffer from high power impact in a sudden, the voltage suppression will fast lower the impedance from both sides, and soak in big current. Therefore, the voltage on both sides are fixed at presupposed value, protects the component of circuit from damage. This voltage suppression provides 600W each wire with lightning and ESD protection, and surge and transient over voltage protection on circuit. The tiny inter-electrode capacitance ensures high speed transmission for RS-485/422 ports. RS-485/422 Port adopts DB9 male connector. This converter has built-in zero delay auto receiving and transmitting conversion and unique I/O circuit auto control data flow direction without any handshake signal (RTU, DTR), so there is no need for jumper wire setting for full-duplex (RS-422) and half-duplex (RS-485) mode. It is compatible with current communication software and hardware and it is plug-and-play.
HEUS-T-036 photoelectric isolated converter provides connection for point-to-point, point-to-multipoint communication. For point-to-multipoint mode, each converter is allowed to connect 128 RS-422 or RS-485 devices with baud rate 300 - 921,600 bps. The power and data flow indicators indicate the working status.