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Small USB dongle with DB9 port and three status LEDs

LORDWORLD

LORDWORLD USB to RS485 Converter Adapter CH343G SP485EEN

SKU CH-D1PB-3AHNS

Converts USB to RS485 with CH343G and SP485EEN chips, onboard TVS, resettable fuse and three status LEDs

  • Bidirectional USB to RS485 conversion for flexible industrial communication
  • CH343G and SP485EEN chips deliver fast, stable data transfer
  • Onboard TVS protection suppresses surge and transient voltages
  • Resettable fuse and diodes guard against over-current and over-voltage
  • Three status LEDs show power and transceiver activity at a glance

Industrial USB to RS485 Converter

This LORDWORLD adapter provides bidirectional USB to RS485 conversion for industrial automation and maker projects. It integrates original CH343G and SP485EEN chips to deliver fast, stable and reliable communication. The board suits developers who need robust serial connectivity across Mac, Linux, Android, WinCE and Windows platforms.

Protection circuits and status LEDs

Onboard TVS diodes suppress surge voltage and transient spikes for lightningproof and anti-electrostatic defence. A resettable fuse and protection diodes maintain stable current and voltage outputs while adding over-current and over-voltage proofing. Three LEDs indicate power and transceiver status so operators can monitor link health at a glance.

Sustained operation in harsh environments

The protection circuits are designed to maintain stable outputs during continuous data streams rather than only short bursts. Surge suppression and the resettable fuse work together to handle prolonged electrical noise without degradation. This makes the adapter suitable for long-running industrial deployments where reliability outweighs peak throughput.

I korthet

  • Bidirectional USB to RS485 conversion for flexible industrial communication
  • CH343G and SP485EEN chips deliver fast, stable data transfer
  • Onboard TVS protection suppresses surge and transient voltages
  • Resettable fuse and diodes guard against over-current and over-voltage
  • Three status LEDs show power and transceiver activity at a glance

Specifikationer

BrandLORDWORLD

Frågor om den här produkten

How do I connect the RS485 bus to the CH343G adapter?

Wire the A and B lines to the terminal block observing correct polarity, then insert the USB plug into the host; the step most often missed is failing to match the bus polarity on the A and B terminals.

What protection components may need attention after a heavy surge event?

The onboard TVS diodes and resettable fuse absorb transients; after a severe strike the fuse will trip and self-reset once the fault clears, while the TVS devices remain in circuit unless they have visibly failed.

What limits throughput during continuous high-speed RS485 traffic?

The CH343G USB-to-serial bridge and the SP485EEN transceiver set the maximum sustainable data rate; sustained loads are bounded by the USB signalling and the transceiver's driver slew-rate.

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