---
product_id: 376690916
title: "DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge"
brand: "dtech"
price: "S$29"
currency: SGD
in_stock: true
reviews_count: 5
category: "Dtech"
url: https://www.desertcart.sg/products/376690916-dtech-rs232-to-rs485-converter-serial-adapter-with-4-position
store_origin: SG
region: Singapore
---

# 600W surge protection 4000ft long-haul reach Auto RX-TX control DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge

**Brand:** dtech
**Price:** S$29
**Availability:** ✅ In Stock

## Summary

> ⚙️ Future-Proof Your Industrial Data Flow with Effortless RS232 to RS485 Conversion

## Quick Answers

- **What is this?** DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge by dtech
- **How much does it cost?** S$29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/376690916-dtech-rs232-to-rs485-converter-serial-adapter-with-4-position)

## 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

- • **Built-In Surge Armor:** 600W transient voltage suppressor shields your devices from damaging power spikes.
- • **Multi-Device Mastery:** Connect up to 32 RS485 devices on a single network for scalable industrial setups.
- • **Plug & Play Simplicity:** Automatic RX-TX control means zero driver hassle—just connect and go.
- • **Power Without the Plug:** Port-powered design eliminates the need for external power supplies, reducing clutter.
- • **Extend Your Network Horizon:** Supports communication up to 4000ft (1200m) for seamless long-distance data flow.

## Overview

The DTECH RS232 to RS485 Converter is a compact, port-powered serial adapter designed for robust long-haul communication up to 4000ft. It supports up to 32 devices on a half-duplex RS485 network with automatic RX-TX control for plug-and-play ease. Featuring a 600W transient voltage suppressor, it safeguards connected equipment from surges, making it ideal for industrial and commercial environments requiring reliable, scalable, and noise-resistant data transmission.

## Description

RS-232 to RS-485 converters are mostly used in industrial and commercial environments. The reason is that the RS485 converter can be used for multi-drop networks, meaning that you for example can connect multiple RS485 devices to one computer. Up to 32 devices can be connected in one network to communicate on a single pair of wires (plus a ground wire). This type of communication is called half-duplex communication. Most quality RS485 converters can communicate in this manner of up to 4000 feet (1200 meters). RS232 to RS485 serial converter is also fairly resistant to noise which is one more reason why it is favored in industrial environments. Guard Your Value Equipment A built-in transient voltage suppressor (TVS) supports 600W anti-surge, effectively guard your value devices from the hazards of transient surges, lightning. No Driver Required Auto control data flow direction of I/O circuit feature makes it fully plug-and-play. Port-Power No external power supply required, it is port-powered from RS232 data lines and low consumption electricity. Mini-Size with 2 screws and terminal block Specific Standard: EIA/TIA RS232C / RS485 Baud Rate: 300bps - 115.2kbps Working Mode: 2 wire asynchronous half-duplex Communication Mode: Point to Point, Point to Multipoint Transmission Media: Twisted Pair (Wire diameter >= 0.5mm) or Shielded wire Transmission Distance: RS232 Interface: up to 50ft (15m); RS485 Interface: up to 4000ft (1.2km) Surge Protection: RS485 Interface, Each wire 600W Original Packing Included 1 X RS232 to RS485 Converter

Review: If you are trying to convert between RS-232 and RS 485, this works very well and a simple to use.
Review: This worked very well as a replacement for an old RS232 to RS485 converter, allowing us to restore telemetry without having to return to the original technology provider. We were facing the loss of temperature‑sensor data from several older grain silos, and with the original manufacturer long out of business, we needed a reliable way to bring the system back online. This converter offered exactly the flexibility required, with support for BAUD rates from 300 to 1.5 kbps ideal for the legacy equipment still in use. We did need to write a small converter program to integrate it cleanly into our setup which was not a fault of the converter, but once in place, the hardware performed flawlessly. It’s a solid, well built unit that stands up to harsh environments and feels like it will last for years. Overall, it’s a dependable and adaptable converter that made it possible to keep an older but still valuable telemetry system running smoothly.

## Features

- Port powered RS232 to RS485 Converter used in Long-haul Communication up to 4000ft (1200 meters)
- RS232 to RS485 adapter enables the connections of multiple bus nodes and 32 devices can be joined in RS-485 network
- Automatic RX - TX Control; RS-232 to RS-485 Converter controls the “Receive” and “Transmit” modes automatically
- Up to 115.2kbps baud rate (auto-detect) can be applied to point to point two wire half duplex and point to multi-point two wire half duplex communication
- A built-in Transient Voltage Suppressor (TVS) supports 600W anti-surge protection on each line of RS485 link which effectively guard devices from damage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08T9C22N9 |
| Best Sellers Rank | #123,837 in Computers ( See Top 100 in Computers ) #320 in Serial Adapters |
| Brand | DTECH |
| Color | black |
| Customer Reviews | 4.5 4.5 out of 5 stars (30) |
| Date First Available | 1 February 2021 |
| Item Weight | 32 g |
| Item model number | DT-9001 |
| Manufacturer | guangzhouditedianzikejiyouxiangongsi |
| Product Dimensions | 23.37 x 19.56 x 5.84 cm; 32 g |

## Product Details

- **Colour:** black
- **Compatible devices:** PC, Industrial Equipment
- **Connector type:** RS232 to RS485 Converter
- **Item dimensions L x W x H:** 23.4 x 19.6 x 5.8 centimeters
- **Specific uses for product:** TV

## Images

![DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge - Image 1](https://m.media-amazon.com/images/I/51r2HiLXpVL.jpg)
![DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge - Image 2](https://m.media-amazon.com/images/I/51TlMOrmw6L.jpg)
![DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge - Image 3](https://m.media-amazon.com/images/I/51WbHI5tOnL.jpg)
![DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge - Image 4](https://m.media-amazon.com/images/I/61-rOr4KCwL.jpg)
![DTECH RS232 to RS485 Converter Serial Adapter with 4 Position Terminal Block for Long Haul Data Communication Supports 600W Anti-Surge - Image 5](https://m.media-amazon.com/images/I/51J0HuuIrmL.jpg)

## Questions & Answers

**Q: What is the input voltage range fo operation? can it be powered from pin 9 on the dsub connector?**
A: It does not need external power.

**Q: What is the voltage range of operation on the dsub connector?**
A: I dont know the range, my application was at 3.3V and I didnt have much problem with that.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***M on 5 January 2025*

If you are trying to convert between RS-232 and RS 485, this works very well and a simple to use.

### ⭐⭐⭐⭐⭐ Review
*by S***E on 28 February 2026*

This worked very well as a replacement for an old RS232 to RS485 converter, allowing us to restore telemetry without having to return to the original technology provider. We were facing the loss of temperature‑sensor data from several older grain silos, and with the original manufacturer long out of business, we needed a reliable way to bring the system back online. This converter offered exactly the flexibility required, with support for BAUD rates from 300 to 1.5 kbps ideal for the legacy equipment still in use. We did need to write a small converter program to integrate it cleanly into our setup which was not a fault of the converter, but once in place, the hardware performed flawlessly. It’s a solid, well built unit that stands up to harsh environments and feels like it will last for years. Overall, it’s a dependable and adaptable converter that made it possible to keep an older but still valuable telemetry system running smoothly.

### ⭐⭐⭐⭐⭐ Review
*by D***D on 18 November 2024*

I like the brand and bought this based on that and recommendations. It is well built, never a hiccough and just keeps on working.

## Frequently Bought Together

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

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-18*