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Industrial USB to 4-Ch RS485 Converter with Isolation

31-00026545
USB TO 4CH RS485 (B)
CompanyWaveshare Part NumberUSB TO 4CH RS485 (B)
In Stock
Ships in 24 Hours
€2480
Waveshare
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10+
Price
€22.32
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This is an industrial USB to RS485 converter featuring the original CH344L chip, with built-in protection circuits including power isolation, ADI magnetic isolation, and TVS. Its aluminum alloy case design ensures durability. The converter is easy to operate, offers automatic transmission, and delivers fast communication, stability, reliability, and safety. It is ideal for industrial devices and applications with high demands.

Key features
  • Adopts original CH344L chip, high-speed communication, stable and reliable, better compatibility.
  • Supports USB to 4-ch isolated RS485, convenient for expanding multiple RS485 industrial serial devices.
  • Onboard unibody power isolation, provides stable isolation voltage, no additional power supply is required at the isolated side.
  • Onboard unibody digital isolation, support signal isolation, with better reliability, stronger anti-interference ability, and lower power consumption.
  • Onboard TVS (Transient Voltage Suppressor) to effectively suppress surge voltage and transient spike voltage in circuits, lightning-proof protection, and anti-static protection.
  • Onboard self-resetting fuses and protection diodes ensure stable current and voltage output, prevent overcurrent and overvoltage, and improve shock resistance.
  • Built-in RS485 output terminal 120R, can be enabled by dip switches, and flexible switching.
  • The transmission distance is about 1.2km for RS485 and about 5 meters for USB.
  • 10× external LEDs for power, device configuration status, and signaling status.
  • Aluminium alloy enclosure with sand blasting and anodic oxidation.
  • Supports wall-mount and rail-mount installation, rigid and nice-looking, easy to install.



Technical data
Product typeIndustrial isolated USB to RS485 converter
Host portUSB
Device portRS485
Baudrate1200bps ~ 460800bps
USBOperating voltage5V
ConnectorUSB-B
Protection500mA resettable fuse, output isolation
Isolated RS485ConnectorScrew terminal
Direction controlHardware automatic control
Protection600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R matching resistors)
Transmission modePoint-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
IndicatorsPWRPower indicator, lights up while the USB is connected and voltage is detected
ACTStatus indicator, lights up green while the driver is detected.
RXDRXD indicator, lights up when the device ports send data back
TXDTXD indicator, lights up when the USB port is sending data
Operating environmentTemperature-40 ~ 85℃
Humidity5%RH ~ 95%RH
Operating systemWin7/8/8.1/10/11, Mac, Linux, Android





Package contents
  1. USB TO 4CH RS485 (B) ×1
  2. Rail-mount buckle ×1
  3. USB type A to type B cable ~1.2m ×1
  4. Screwdriver ×1


Company
Waveshare
Part Number
USB TO 4CH RS485 (B)
Warranty
12 Month Manufacturer Warranty
G. Weight
0.211kg
Interface
  • USB
  • RS485
Mounting
  • DIN rail
  • Wall-mount
Protection
  • Power supply isolation
  • Signal isolation
  • Overcurrent
  • Overvoltage
  • ESD
  • Surge/Transient
Supply Method
  • USB
Supply Voltage
5 V
Converter Type
  • USB/RS485
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