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Small rectangular ABS case with USB port and terminal block connectors

LORDWORLD

LORDWORLD USB to RS485/422 Isolated Converter development board

SKU CH-1B09-09Y5J

Industrial-grade isolated USB to RS485/RS422 converter with FT232RL and SP485EEN chips, onboard 120R termination, TVS protection and rail-mount ABS case

  • Onboard power isolation delivers stable voltage without extra supply
  • TVS protection suppresses surges and spikes for lightningproof operation
  • 120R terminal resistor enabled by default, jumper configurable
  • Self-recovery fuse and diodes guard against over-current and over-voltage
  • Rail-mount ABS case fits tight spaces for easy installation

Industrial isolated serial converter

This LORDWORLD development board converts a USB port into an isolated RS485 or RS422 interface using an FT232RL controller and SP485EEN transceiver. Onboard power isolation removes the need for a separate supply on the field side while a TVS device clamps surge and electrostatic events. A 120R termination resistor is fitted by default and can be disabled with a jumper. The assembly fits a standard DIN rail inside an ABS housing.

Makers and engineers adding serial links to PCs

The board suits developers who need a protected USB-to-serial bridge for industrial sensors, Modbus networks or lighting consoles running on Windows XP through Windows 10, Linux, Android, Mac or Wince. It is not for designs that require a non-isolated connection, a different transceiver voltage level or a bare PCB without the rail-mount enclosure.

FT232RL and SP485EEN chipset

The FT232RL handles USB 2.0 signalling up to 232 while the SP485EEN drives the differential pair to 485 or 422 levels. This combination sets the electrical characteristics and maximum data rate for the isolated port.

Highlights

  • Onboard power isolation delivers stable voltage without extra supply
  • TVS protection suppresses surges and spikes for lightningproof operation
  • 120R terminal resistor enabled by default, jumper configurable
  • Self-recovery fuse and diodes guard against over-current and over-voltage
  • Rail-mount ABS case fits tight spaces for easy installation

Specifications

BrandLORDWORLD

Questions about this item

What rail standard does the ABS case mount to?

The industrial rail-mount ABS case is designed for standard DIN rail installation, allowing quick snap-on mounting inside control cabinets.

How is the 120R terminal resistor enabled or disabled on the RS485/422 ports?

The 120R termination resistor is enabled by default; move the onboard jumper to the open position to disable it for your bus topology.

Which onboard protection components may need replacement after a severe surge event?

The self-recovery fuse resets automatically, but the TVS diodes and protection diodes are sacrificial and should be inspected or replaced after a major transient.

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