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Compact RS232 to RS485 converter with 3-pin terminal block

SMUGDESK

SMUGDESK RS232 to RS485 Data Converter 1.2KM 3Bit Terminal Block

SKU CH-F2AJ-GM4GS

Converts RS232 signals to RS485 for 1.2KM industrial serial transmission with a 3-bit terminal block

  • Converts RS232 to RS485 for industrial serial links
  • 2 km reach extends RS232 range for field wiring
  • 3-bit screw terminal block secures A, B and GND lines
  • Driver-free hardware design enables instant plug-and-play deployment
  • Built-in anti-interference circuitry protects PLCs, meters and sensors

Industrial RS232 to RS485 Converter

This SMUGDESK adapter converts unbalanced RS232 signals into differential RS485 signals, extending serial communication range for industrial environments. It enables reliable data transfer between standard serial devices and field equipment over long cable runs. The hardware-based design requires no driver installation for immediate deployment.

Suits PLCs meters and sensors.

The converter targets automation engineers integrating PLCs, digital meters, or serial sensors into factory networks. Its screw terminal block simplifies A, B, and GND wiring without special tools. Buyers needing only short-distance RS232 links or USB connectivity should consider other interface types.

Hardware conversion sustains 1.2KM links under noise

Pure hardware signal translation maintains continuous 1200m transmission without software latency or driver overhead. Built-in anti-interference circuits filter electromagnetic noise and transient surges common in workshops. This ensures stable, long-term throughput for data acquisition and equipment debugging tasks.

How it compares

Measured against everything we stock in Serial & Protocol Converters, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 85% of the 121 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does the converter need a separate power supply to drive the 1.2 km RS485 link?

No external supply is required; the adapter draws power from the host RS232 port and uses a hardware-only conversion circuit, so there is no driver to install and no extra cable to plug in.

Will my legacy RS232 device operating at standard voltage levels communicate through this adapter without signal-level changes?

Yes, the unit accepts standard RS232 voltage swings and translates them to differential RS485 A/B/GND signals on the 3-bit terminal block, so existing serial equipment connects directly.

How can I confirm the link is live after wiring the A, B and GND terminals?

Send data from the RS232 side and verify the corresponding RX/TX LEDs on the converter blink; successful two-way traffic means the 1200 m RS485 path is functioning.

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