1. Adopting the FT232RNL+SP485EEN chip scheme, high-speed communication is stable, and compatible 2. On-board (transient voltage suppression tube) can effectively suppress the surge voltage and transient voltage in the circuit, and prevent- and static electricity 3. The on-board - fuse and protection diode can the stable output of current and voltage, prevent over-current and over-voltage, and the impact resistance 4. Onboard 15KV ESD isolation protection and 600W -surge protection. 120R terminal resistance of on-board RS485/RS422 interface, enabled by default, can be modified through jumper cap setting Product type: industrial isolated USB to RS485/422 converter; Communication rate: FT232RNL 300bps~3Mbps; interface: USB; Equipment interface: RS485/422 USB interface: Working level: 5V Interface type: USB-B interface Interface protection: 200mA - fuse, ESD static protection Transmission distance: about 5 RS485/422 interface: Interface type: terminal block Interface pins: A+, B -, PE Direction control: the hardware automatically determines and controls the data transmission direction Interface protection: 600W -protection, surge and 15KV static electricity protection (onboard 120R balance resistance) Transmission distance: about 1200 (at low speed) Transmission mode: -to-many, (up to 32 nodes, and repeaters are recommended for more than 16 nodes) indicator light: PWR: power indicator, connected to USB, red light when voltage is detected TXD: send indicator light, green light when data is sent from USB port RXD: receiving indicator light, blue light when data is sent back from the device interface Use environment: Temperature range: -15 ~70 Humidity range: 5% RH~95% RH : , Linux, Android, WinCE, /8.1/8/7/XP Housing: guide-type ABS environment-friendly housing, suitable for 35mm DIN rail Size: 81.9 x 54 x 32mm color:Black Material:ABS+metal Package Contents: 1 x USB TO RS485/422 converter 1 x USB cable type A male to type B male, about 1.2m 1 x screwdriver Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.