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Green development board with four terminal blocks and a USB port

LORDWORLD

LORDWORLD USB to 4-Ch RS485 Converter (B) CH344L development board

SKU CH-FPFG-E8G9M

Converts USB to four isolated RS485 channels with 1.2 km reach and built-in 120R termination

  • Expands connectivity with four RS485 channels
  • Power isolation built in, no external supply needed
  • Digital isolation ensures reliable, low-interference signals
  • 120R termination resistors selectable via DIP switch
  • Compatible with Windows 11, 10, 8.1, 8, 7, Linux, Mac, Android

Industrial RS485 Expansion

The LORDWORLD USB to 4-Ch RS485 Converter (B) adds four isolated RS485 channels to a host over a single USB connection. It targets engineers and integrators who need to link multiple industrial serial devices such as sensors, meters or PLCs without designing custom hardware.

Isolation and Signal Integrity

Onboard unibody power-supply isolation delivers a stable isolated voltage without an external supply for the isolated terminal. Digital isolation provides signal separation for high reliability and strong anti-interference. Each channel includes a 120R termination resistor selectable by DIP switch for bus matching.

Multi-OS Development Platform

The board runs on Windows 7 through 11, Mac, Linux and Android, letting developers test across environments with one adapter. It replaces ad-hoc USB-to-serial cables when a project needs four concurrent 485 links up to 1.2 km. Not suited for applications requiring more than four channels or non-RS485 protocols.

Puntos fuertes

  • Expands connectivity with four RS485 channels
  • Power isolation built in, no external supply needed
  • Digital isolation ensures reliable, low-interference signals
  • 120R termination resistors selectable via DIP switch
  • Compatible with Windows 11, 10, 8.1, 8, 7, Linux, Mac, Android

Especificaciones

BrandLORDWORLD

Preguntas sobre este artículo

How do I install the CH344L driver and where do I set the 120R termination on each RS485 channel?

Install the CH344L driver for Windows 11, 10, 8.1, 7, Mac, Linux or Android, then use the DIP switch on the board to enable or disable the 120R resistor on each of the four RS485 output terminals.

What part will need replacement first if the isolation barrier degrades after long industrial use?

The onboard unibody power-supply and digital isolation are integrated into the CH344L development board; if isolation performance drops the whole board must be swapped as no user-replaceable isolation module is provided.

At what cable length does the RS485 signal typically hit its reliable limit on this converter?

The supplier rates transmission distance up to 1.2 km per channel; beyond that distance signal integrity becomes the first limiting factor under sustained operation.

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