Industrial-grade design, communication is completely isolated, stable and reliable performance, transmission rate is up to 500KbpsBuilt-in high-quality DC/DC isolated power module realizes electrical isolation between portsSupport multi-machine communication, can connect up to 128 nodes, and the transmission distance can reach 1200 metersAutomatic data flow control technology, automatically distinguish and control the direction of data transmissionMultiple protection measures: 15KV positive and negative ESD protection; 600W dual-channel TVS protection; Communication isolation 2.5KVRecommended value (typical)Limit valueWorking voltage9V ~ 36V DC9V ~ 36V DCRated power0.36W (9V/35mA; 12V/27mA; 24V/15mA)0.5WWorking temperature-30 ~ 70-40 ~ 80Capacity manager1 ~ 128 node128 nodeCommunication distance0 ~ 1200 meters1200 metersCommunication rate300-500,000 bits/s500 KbpsWiring note:1. 485 communication wires should be shielded twisted pair. It is best to have several spare strands, and the total length does not exceed 1,200 meters.2. The wires should be as far away from the high-voltage wires as possible, do not parallel with the power cord, and do not bundle together.3.485 bus should be hand-held bus structure, and should not be star connection and fork connection.4. 485 repeater should be used when there are more than 30 controllers or the wire is longer than 500 meters.5. The equipment and AC power box should be well grounded.6. Connect GND of all 485 devices with shielded cable.7. Connect 120 ohm terminating resistor in parallel to 485+ (A) and 485- (B) of the last 485 device.