Industrial USB TO 4-Channel RS485 Converter

WaveshareSKU: WAV-25219
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Sale price £15.20
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This 4-Channel RS485 converter extends USB connectivity to four independent RS485 channels, allowing concurrent communication for each. It has multiple protection features to provide reliability in demanding projects. It is equipped with an onboard Transient Voltage Suppressor (TVS) that provides a defence against surge voltages and transient spike voltages, making it both lightning-proof and anti-electrostatic.

Safety measures include resettable fuses and protection diodes that stabilise current and voltage outputs, providing resistance against over-current and over-voltage conditions, and enhancing shockproof performance. The converter features an onboard RS485 output terminal with 120R resistors, which can be enabled or disabled via a DIP switch to suit various application needs.

Note: It is not possible to control all four RS485 using only one ComPort

Features

  • Extending USB to 4CH RS485, allows concurrent and independent communication for each channel
  • TVS (Transient Voltage Suppressor), suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
  • Resettable fuse and protection diodes, provide the current/voltage stable outputs, provide over-current/over-voltage proof, improve shockproof 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

Host Port USB
Device Port RS485
Baudrate 1200bps ~ 460800bps
USB Operating voltage 5V
Connector USB-B
Protection 500mA resettable fuse, ESD protection
Transmission distance About 5m
RS485 Connector Screw Terminal
Protection 600W lightning proof 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
Operating System Win7/8/8.1/10/11, Mac, Linux, Android

Resources

Pinout

PWR The 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(1~4) Blue RXD indicators, light up when the device ports send data back
(corresponding to 4 channels respectively)
TXD(1~4) Blue TXD indicators, light up when the USB port is sending data
(corresponding to 4 channels respectively)

PE Signal ground
A(1~4) A(1~4) differential signal A+
B(1~4) B(1~4) differential signal B-

Package Contents

  • 1x USB TO 4-CH RS485 Converter
  • 1x USB type A to type B cable ~1.2m

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