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RS001

RS232 to RS485 Converter

  • Converts RS232 to RS485 signals.
  • Supports baud rates up to 115200 bps for fast, error-free data transfer, ideal for real-time monitoring in automation systems.
  • Extends transmission up to 1,200 m via twisted-pair cable, enabling long-distance connections across large facilities without repeaters.
  • No external power required, reducing clutter and simplifying installs.
  • Bridges legacy devices with modern systems.
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In today's connected world, bridging old and new technology is key for seamless operations. SC&T's RS001 RS232 to RS485 Converter is a compact, power-free device that transforms short-range RS232 signals into robust RS485 communication over distances up to 1,200 meters. Whether you're an industrial technician managing noisy factory floors or a home automation enthusiast integrating legacy devices, this converter solves common issues like signal loss or limited device connectivity.

RS232 to RS485 Converter – Long-Distance, No-Power Design

The RS001 complies with EIA/TIA standards for serial communication, ensuring full compatibility with both legacy and modern equipment.

  • Standards Supported: RS232 (input) and RS485 (output).
  • Baud Rate: RS232 baud rate ranges from 300 to 115200 bps and typically decreases with longer cable distances. Once converted to RS485, the RS001 supports stable transmission up to 115200 bps — ideal for fast data polling in sensors or controllers without lag.
  • Transmission Distance: Up to 1,200 meters, thanks to RS485's differential signaling that effectively resists noise over long runs.
  • Power Source: Port-powered (no external adapter needed), drawing minimal current from the RS232 for eco-friendly operation.
  • Interfaces: 1x DB9 (RS232 input), 1x 2-pin terminal block (RS485 output), easy for daisy-chain installations.

Applications

The RS001 excels in bridging short-range RS232 equipment with long-distance RS485 networks.

In industrial automation, it can connect an RS232 PLC to RS485 sensors across the factory floor. Simply plug the DB9 connector into your device, wire the terminal block to your RS485 bus, and you’re ready to go. No complex setup or reconfiguration required.

In home or building systems, it links older RS232-based devices (like weather stations or control panels) to RS485 smart hubs for centralized monitoring and data logging.

  • Industrial automation and factory systems
  • Building management systems (BMS)
  • Surveillance and traffic control systems

Setup Guide

  • 1. Connect the DB9 male end to your RS232 device's output port.
  • 2. Attach twisted-pair cable (A/B lines) to the 2-pin terminal block (A to positive, B to negative).
  • 3. Daisy-chain up to 32 RS485 devices on the same line.
  • 4. Power on your source device—the RS001 activates automatically.
  • 5. Test with software to confirm data flow.

Quick Specification

  • Standards: RS232, RS485
  • Max Baud Rate: 115200 bps
  • Max Transmission Distance: 1,200m (twisted-pair cable)
  • Power Supply: Port-powered (no external)
  • Interfaces: DB9 (RS232 in), 2-pin block (RS485 out)

Model

HKM02BP-4K

HKM02B-4K

HKM02B

VDKM02B

Video Format

HDMI

HDMI

HDMI

VGA/DVI

Resolution

4K@30Hz

4K@30Hz

1080p@60Hz

1080p@60Hz

Audio Embed & Extract

V

V

V

V

IR

V

V

V

V

RS232

V

V

V

V

PoE

V

Fiber Module

V

V

  • Converts RS232 to RS485 signals.
  • Supports baud rates up to 115200 bps for fast, error-free data transfer, ideal for real-time monitoring in automation systems.
  • Extends transmission up to 1,200 m via twisted-pair cable, enabling long-distance connections across large facilities without repeaters.
  • No external power required, reducing clutter and simplifying installs.
  • Bridges legacy devices with modern systems.
  • RS485 connectivity supports up to 32 devices on a single twisted-pair line.
  • User-friendly, no-fuss connectivity that saves time and cuts costs.
  • Bi-Directional Conversion: Seamlessly converts RS232 (point-to-point) to RS485 (multi-drop), linking up to 32 devices on one bus for efficient networking.
Firmware/Software

Release Date

Ver.

Release Note

File Name

No items found.
Tutorial Video

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Will this RS232 to RS485 converter/adapter work with my existing RS232 devices?

Yes. The RS001 connects directly to any standard RS232 port (such as a PC COM port) and outputs RS485 through a simple terminal block. It's bi-directional (half-duplex), so data flows both ways without additional drivers, ideal for connecting old controllers to modern networks.

 

How far can the RS001 extend my serial signal?

Up to 1,200 meters (about 3,937 feet) over twisted-pair cable, far beyond RS232's 15-meter limit of RS232.

 

Does it need external power, and is installation easy?

No power adapter required. The RS001 is port-powered from the RS232 source for plug-and-play simplicity. Just connect DB9 to your device and the 2-pin block to RS485 lines; no drivers or tools needed.

*Please note that the converter requires sufficient power supplied from the RS232 port to operate normally.

 

Why choose RS485 over RS232 for my setup?

RS485 handles multi-device networks (up to 32 nodes) and uses differential signaling to resist electrical noise, unlike RS232's single-ended design. It's ideal for industrial or home systems where interference can affect communication.

 

What if my baud rate is high—can it handle 115200 bps?

Yes. The RS001 supports up to 115200 bps reliably but does not support higher baud rates.

Specification

ITEM NO.

RS001

Support

Standard

RS232, RS485

Max. Baud Rate

115200 bps

Max. Transmission Distance

1200M

Ports & Interfaces

Data Input

1 x DB9

Data Output

1 x 2-pin Terminal Block

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Inquiry

As a manufacturer, we value the profit of our clients and do not have any online store. You can get the unpublished price from us through the inquiry button.

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RS001

RS232 to RS485 Converter

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