1、Compatible with RS232/RS485 standard, convert RS232 signal into balanced differential RS485 signal 300~115200bps for stable transmission. 2、On‑board integrated power isolation provides stable isolation voltage, isolation terminals do not require additional power. 3、And onboard integrated electromagnetic isolation can realize signal isolation with high reliability, strong anti‑interference ability and low power consumption. 4、Meanwhile, onboard transient voltage suppressor can effectively suppress the surge voltage and transient spike voltage in the circuit with anti‑thunder and anti‑static functions. 5、On‑board resettable fuse and protection diode can keep stable current/voltage output and provides overcurrent/overvoltage protection to improve shock resistance. 6、Integrate optional RS485 output terminal 120R resistor can be enabled / disabled by switch. 7、DC‑005 power jack allows 6V~36V DC wide range input, which is suitable for different applications. 8、3 LED indicators can also be easy to check the operating status of power, send and receive. 9、Equipped with aluminum alloy shell, sandblasted and anodized with high durability. Item Type RS232 to RS485 Converter Communication Rate 300~115200bps Equipment Interface Compatible with RS232/RS485 standard RS232 Interface Interface Form DB9 male adapter female interface Transmission Distance About 15 meters Transmission Mode Point-to-point RS485 Interface Interface Form Terminal + RJ45 network port Direction Control Hardware automatically distinguishes and controls the direction of data transmission Interface Protection Provide 600W anti-thunder, surge protection and 15KV electrostatic protection Terminating Resistor 120R, enabled by switch Transmission Distance About 1200 meters Transmission Mode Point-to-many (up to 32 nodes, repeater is recommended for more than 16 nodes) Indicator Light PWR Power indicator, when power is connected, it lights up red when voltage is detected TXD Send indicator light, green light when data is sent from RS232 interface RXD Receiving indicator light, blue light when data is sent back from RS232 interface Use Environment Temperature Range -15℃~70℃ Humidity Range 5%RH~95%RH 1 x RS232 to RS485 Converter 1 x DVI Cable 1 x Power Cord