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Green development board with USB port and terminal blocks

LORDWORLD

LORDWORLD CH343G USB to RS232/485/TTL Isolated Converter development board

SKU CH-H2WF-VKX5X

Industrial-grade USB converter isolates RS232, 485 and TTL signals with TVS surge protection, self-recovery fuse and selectable 3.3 V or 5 V TTL levels

  • Stable isolated power without an external supply
  • Reliable digital isolation resists interference and saves power
  • TVS diode clamps surges and protects against ESD
  • Self-recovery fuse guards against over-current and over-voltage
  • Switchable 3.3V/5V TTL level matches target logic

Isolated USB Converter for Industrial Development

The LORDWORLD CH343G board converts a USB port to RS232, RS485 and TTL interfaces with onboard power and digital isolation. It is aimed at engineers and makers who need reliable serial links in electrically noisy environments without an external supply for the isolated side.

Check USB Port and Voltage Level Before Use

Verify that your host provides a standard USB connection and decide whether the TTL side must run at 3.3V or 5V using the onboard switch. The module draws power from the USB bus, so no separate supply is required for the isolated terminal.

Sustained Operation With Built-In Protection

Onboard TVS diodes, a self-recovery fuse and protection diodes clamp transients and limit current during long sessions. The unibody isolation maintains signal integrity and stable voltage outputs under continuous load rather than only in brief bursts.

Põhijooned

  • Stable isolated power without an external supply
  • Reliable digital isolation resists interference and saves power
  • TVS diode clamps surges and protects against ESD
  • Self-recovery fuse guards against over-current and over-voltage
  • Switchable 3.3V/5V TTL level matches target logic

Tehnilised andmed

BrandLORDWORLD

Küsimused selle toote kohta

What comes in the box and do I need any extra cables or power supplies for the isolated terminal?

The board ships with onboard unibody power supply isolation, so the isolated terminal works without an extra power supply. Cables for RS232, RS485 or TTL are not included.

Which version should I choose if I need both RS232 and RS485 on the same board?

The CH343G version provides RS232, RS485 and TTL interfaces simultaneously, selectable via the onboard switch.

What does the 3.3V/5V TTL switch actually do when the board is running?

The switch sets the TTL logic level to 3.3V or 5V, matching the connected device without extra level shifters.

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