Industrial Isolated USB to 4-Ch RS485 Converter with CH344L Chip, Multi Protection Circuits, Wall-Mount & Rail-Mount Support, Compatible with Linux, Android, Windows 11/10 / 8.1/8 / 7, etc.

Features
Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
Onboard unibody digital isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & ESD protection
Onboard self-recovery 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
10 LEDs for indicating the power, device configuration status and transceiver status

Specifications

USB

Operating voltage--5V
Connector--USB-B
Protection --500mA resettable fuse, output isolation

Isolated RS485

Connector--Screw terminal
Direction control--Hardware automatic control
Protection--600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R matching resistors)
Transmission mode-- Point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)

INDICATORS

PWR--Power indicator, lights up while the USB is connected and voltage is detected
ACT --Status indicator, lights up green while the driver is detected
RXD--RXD indicator, lights up when the device ports send data back
TXD --TXD indicator, lights up when the USB port is sending data

Operating environment: Temperature -40 ~ 85;
Humidity: 5%RH ~ 95%RH

Operating system: Win7/8/ 8.1 /10/11, Linux, Android

Comes with Online Development Resource: n9. cl/39n0j

Package Content
USB TO 4CH RS485 (B) x1
Rail-mount buckle x1
USB type A to type B cable ~ 1.2 m x1
Screwdriver x1