Description The USB TO 4CH RS485 is an industrial-grade USB to 485 non-isolated converter. It incorporates the CH344L and SP485EEN original chips, providing enhanced stability and compatibility. It features built-in lightning protection, a resettable fuse, ESD, and TVS protection circuits, all enclosed in an aluminum alloy cg design. This converter is suitable for various industrial control equipment or applications with demanding communication requirements. Features Extending USB to 4CH RS485, allows concurrent and independent communication for each channel Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance Onboard RS485 output terminal 120R resistors, enabled/disabled via DIP switch Aluminium alloy case with oxidation dull-polish surface, CNC process opening, solid and durable, well-crafted Specifications 1. USB Operating voltage: 5V Connector: USB-B Protection: 500mA resettable fuse, ESD protection Transmission distance: About 5m 2. RS485 Connector: Screw terminal Protection: 600W lightningproof and surge-suppress, 15KV ESD protection Transmission distance: Maximum communication distance is about 1200m (at a low rate, with 120R resistor turned on) Transmission mode: Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) Operating environment: Temperature: -40 ~ 85?. Humidity: 5%RH ~ 95%RH Package Content USB TO 4CH RS485 x1 USB type A to type B cable ~1.2m x1 Online Development Resources /User Manual ://bit.ly/3QxBxm8

Transmission distance up to 1.2km: The USB signal can be converted into 4 balanced differential RS485 signals and the transmission rate is stable. The reliable speed is 1200~460800bps, the transmission distance is about 1.2km for RS485, and about 5 meters for USB. Compatible with Mac OS, Linux, Windows 11 / 10 / 8.1 / 8 / 7, Android. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock proof performance. Onboard RS485 output terminal 120R resistors, enabled/disabled via DIP switch. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic. Industrial USB TO RS485 4-CHConverter, Extending USB to 4CH RS485, allows concurrent and independent communication for each channel.