SPECIFICATIONS

USB to RS485/RS232 Communication Module Bidirectional Half Duplex Serial Port Line Converter Industrial Grade Converter CH343G

Product Features
1. Support USB to RS485/RS232 communication (switched by DIP switch).
2. Adopt the new CH343G chip, plug and play, compatible with Windows series, MacOS series, Linux and other systems.
3. The onboard TVS (transient voltage suppression tube) can effectively suppress the surge voltage in the circuit, each instantaneous peak voltage, lightning protection and anti-static.
4. The onboard self-recovery fuse and protection diode can ensure the stable output of current and voltage, prevent overcurrent and overvoltage, and improve the impact resistance.
5. There are three LED indicators on the board to facilitate the viewing of the power signal reception and transmission status.

Product parameters:
Product type: Industrial-grade USB to RS485/232 converter
Communication rate: 50bps~1000000bps
Host interface: USB
Device interface: RS485/RS232 (switched by DIP switch)
USB interface:
Working level: 5V
Interface type: USB-A type interface
Interface protection: 200MA recovery fuse, ESD static protection
Transmission distance: about 5 meters

RS485/RS232 interface:
Interface type: terminal block
Interface pins: GND, A+ (TXD), B-(RXD)
Direction control: Hardware automatically determines and controls the direction of data transmission
Interface protection: Provides 600w lightning protection, surge and 15KV electrostatic protection (onboard 120R balancing resistor)
Transmission distance: RS485 (about 1200 meters), RS232 (about 10 meters) at low speed
Transmission mode: point-to-multiple (up to 32 nodes, it is recommended to add a repeater for more than 16 nodes RS232 (point-to-point one interface can only connect one device, and a repeater is required to connect multiple devices)

Indicator lights:
PWR: Power indicator light, connected to USB, the light will turn on when voltage is detected
TXD: Transmit indicator light, the light will turn on when data is sent from the USB port
RXD: Receive indicator light, the light will turn on when data is received at the USB interface
USB to RS485/RS232 interface description:
GND: peripherals connected to GND
A+TXD: RS485 connected to A, RS232 connected to RXD
B-RXD: RS485 connected to B, RS232 connected to TXD

Product list:
1X module