---
product_id: 274470197
title: "Industrial Grade Port-Powered RS232 to RS485 Converter Adapter with TX/RX LED Lights for Industrial Long Haul Serial Communication"
brand: "dtech"
price: "€ 32.95"
currency: EUR
in_stock: true
reviews_count: 5
category: "Dtech"
url: https://www.desertcart.hr/products/274470197-industrial-grade-port-powered-rs232-to-rs485-converter-adapter-tx
store_origin: HR
region: Croatia
---

# 600W surge protection 4000ft long-distance transmission Auto baud rate up to 115200 bps Industrial Grade Port-Powered RS232 to RS485 Converter Adapter with TX/RX LED Lights for Industrial Long Haul Serial Communication

**Brand:** dtech
**Price:** € 32.95
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your industrial network with unstoppable surge-proof serial connectivity!

## Quick Answers

- **What is this?** Industrial Grade Port-Powered RS232 to RS485 Converter Adapter with TX/RX LED Lights for Industrial Long Haul Serial Communication by dtech
- **How much does it cost?** € 32.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/274470197-industrial-grade-port-powered-rs232-to-rs485-converter-adapter-tx)

## Best For

- dtech enthusiasts

## Why This Product

- Trusted dtech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Network Like a Pro:** Supports up to 32 RS485 devices on a single network for scalable, multi-point serial communication
- • **Real-Time Data Status:** Built-in TX/RX LED indicators give instant visual feedback on data transmission and reception
- • **Plug & Play Simplicity:** Port-powered design with automatic data direction control means zero external power and no manual switching 🔄
- • **Industrial-Grade Surge Defense:** 600W double lightning & 15KV static protection shields your critical devices from voltage spikes ⚡
- • **Seamless Long-Haul Communication:** Reliable RS485 transmission up to 4000ft keeps your data flowing across sprawling industrial setups 📶

## Overview

The DTECH Industrial Grade RS232 to RS485 Converter is a compact, port-powered adapter designed for robust, long-distance serial communication up to 4000ft. Featuring 600W lightning surge and 15KV static protection, it safeguards your devices against electrical spikes. With automatic baud rate detection up to 115200 bps and support for up to 32 devices on a single RS485 network, it delivers reliable, plug-and-play performance ideal for industrial automation, SCADA, and complex multi-point setups.

## Description

Asynchronous Half Duplex Communication To have a PC in charge of controlling a given process in long haul data acquisition and control applications, this converter allows to interface your devices using an RS232 communication link to an RS485 link and vice-versa. Double Protection A built-in transient voltage suppressor (TVS) enables you to get double 600W lightning surge protection against the lightning strike over RS485 link, and 15KV static protection over RS232 link effectively protect your value devices against high voltage spikes. Simple Operation ADDC (Automatic Data Direction Control) function can detect the incoming or outgoing data and automatically switch into the send or receive mode, then you don't have to worry about the data collision problems. For RS485 2 wire system, it only requires three lines (RX, TX and GND) to get a RS232 to RS485 conversion, making it great for troubleshooting the serial system, fully plug and play. Up to 32 devices can be connected on one network to communicate over a single pair of wires (plus a ground wire), so multiple RS485 devices could be connected to one PC without repeater. Specific RS232 Link - 9 pin female port. RS485 Link - 9 pin male port, 4 position terminal board. EIA/TIA RS-232C, RS-485 specification. Transmission Distance - 4000ft over RS485 link, 50ft over RS232 link. Transmission Media - twisted pair (>=24 AWG ) or shielded cable. Applications Computer Factory industrial automation control system Micro controller (MCU) Door safe / Parking system SCADA (supervisory control and data acquisition) ... Package Content 1 x RS-232 to RS-485 Converter 1 x Terminal Board 1 x User Manual

Review: Used this converter to replace an OEM part and worked a treat. Bought 2 of them
Review: Checked bacnet network with this. It works fine.

## Features

- 600W double lightning surge protection and 15KV static protection protects your value devices against high voltage spikes created by either by static electricity or by surges in the supply voltage
- RS-232 to RS-485 serial converter with TX and RX indicators enables you to easily know the status of sending or receiving data respectively
- Passive bi-directional RS232 to RS485 converter supports reliable signal transmission over long distance: up to 4000ft over RS-485 link at a high speed
- Mini RS 232 to 485 adapter supports 2 wire half duplex communication, point to point and point to multi-point network (up to 32 RS-485 devices)
- The baud rate will be detected and adjusted automatically, up to 115200 bps; industrial RS232 serial adapter is port powered from RS-232 signal, no external power required

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EABU6MG |
| Best Sellers Rank | #44,209 in Computers ( See Top 100 in Computers ) #114 in Serial Adapters |
| Item model number | DT-9004 |
| Manufacturer | DTech |
| Product Dimensions | 6.35 x 3.3 x 1.78 cm; 36.29 g |

## Product Details

- **Colour:** Blue
- **Compatible devices:** serial devices
- **Connector type:** serial
- **Item dimensions L x W x H:** 6.4 x 3.3 x 1.8 centimeters
- **Specific uses for product:** PC

## Images

![Industrial Grade Port-Powered RS232 to RS485 Converter Adapter with TX/RX LED Lights for Industrial Long Haul Serial Communication - Image 1](https://m.media-amazon.com/images/I/61pUXJSJfaL.jpg)

## Questions & Answers

**Q: Which rs-232 lines it gets power from.  txd?  cts? rts?  which ones?  my application has only txd, rxd and gnd.  will it work?**
A: Yes, the RS-232 to RS-485 conveter works for txd, rxd and gnd application. If need any usage help, please feel free to contact us directly anytime.

**Q: The device needs power.  does it get it from the rs-485 signal lines, from the rs-232 lines, or where?  if from the rs-232 lines, whiich ones?**
A: The RS 232 to 485 adapter is port-powered, normally external power supply is not required. But if you need additional power supply as your case may be, please check the "VCC" pin on the breakout connector, which will allows you to add a DC 7-9V power supply to it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by I***N on 18 September 2024*

Used this converter to replace an OEM part and worked a treat. Bought 2 of them

### ⭐⭐⭐⭐⭐ Review
*by D***N on 31 December 2019*

Checked bacnet network with this. It works fine.

### ⭐⭐⭐⭐⭐ Review
*by A***L on 31 July 2023*

I like the product.. For our machine

## Frequently Bought Together

- DTech RS232 to RS485 Converter Serial Communication Data Adapter with TX RX LED Indicators and Terminal Board
- DTECH RS232 to RS485 Serial Converter Adapter with 4 Position Terminal Block for Industrial Long Haul Communication Data Supports 600W Anti-Surge
- DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-15*