---
product_id: 34940729
title: "DTECH Port Powered RS232 to RS232 Serial Port Isolator Optic Electric Adapter to Protect You PC and RS-232 Device"
brand: "dtech"
price: "315 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/34940729-dtech-port-powered-rs232-to-rs232-serial-port-isolator-optic
store_origin: DK
region: Denmark
---

# Optical isolation protects against surges & ESD Reversible male/female DB9 with thumbscrews DB9 9-pin male-female serial converter DTECH Port Powered RS232 to RS232 Serial Port Isolator Optic Electric Adapter to Protect You PC and RS-232 Device

**Brand:** dtech
**Price:** 315 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Shield your serial connections with smart, surge-proof precision!

## Quick Answers

- **What is this?** DTECH Port Powered RS232 to RS232 Serial Port Isolator Optic Electric Adapter to Protect You PC and RS-232 Device by dtech
- **How much does it cost?** 315 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/34940729-dtech-port-powered-rs232-to-rs232-serial-port-isolator-optic)

## 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

- • **Plug & Play Power:** Bus-powered design means zero external power needed—just connect and safeguard instantly.
- • **Eco-Conscious Certified:** ClimatePartner certified for sustainable tech—protect your devices and the planet simultaneously.
- • **Effortless Connectivity:** Reversible DB9 male/female ports with thumbscrews ensure quick, secure installation every time.
- • **Universal Compatibility:** Works flawlessly with modems, routers, RFID readers, satellite receivers, and more using standard 3-wire RS232.
- • **Seamless Serial Security:** Protect your PC & RS-232 devices from surges, ESD, and ground loops with advanced optical isolation.

## Overview

The DTECH RS232 Serial Port Isolator is a bus-powered, DB9 9-pin male-to-female optical isolator designed to protect RS-232 communication devices from electrostatic discharge, surges, ground loops, and faulty wiring. Compatible with a wide range of 3-wire RS232 devices, it features reversible connectors with thumbscrews for easy installation and is ClimatePartner certified for environmental responsibility.

## Description

DTECH 3 Wire RS232 Data Interfaces Opto Isolator for Typical isolated RS-232 communications link Why take a chance on blowing up your COMM PORT this simple mini RS232 opto isolator device will protect your PC and RS232C devices, when plugging into an unknown device or plugging into one that has a short you can damage your comm port in a hurry!  This compact RS232 Isolator Optic Electric adapter is designed to protect the RS232 serial port at both ends of the device, inhibit static and surge, prevent ground loop and surge damaging devices.  Connection:  9 pin DTE devices transmit on pin 3 and receive on pin 2 9 pin DCE devices transmit on pin 2 and receive on pin 3   Specific   Optic electric isolation voltage: Instant 2.5KV rms; Continous 500VDC RS232 adapter's transmission Rate: 300 bps – 57600 bps Power: self powered, Supply from RS232 (one of TXD / DTR / RTS)    Original Packing Included  1 x Port Powered RS-232 Isolator 1 x User Manual

## Features

- DB9 9 pin male to female serial converter - RS232 optical Isolator for RS232C system communication serial port optical isolation protector product
- Mini RS232 opto isolator serial adapter is suitable to protect electric terminal devices using 3 wire system (TXD, RXD and GND), such as modem, router, RFID reader, radio, multi-user system and satellite receiver, computer, etc
- DE9 RS232 isolated interface adapter protects against the effects of electrostatic discharge, surge, ground loop, faulty wiring and lightning
- Bus-powered serial isolator RS232 surge protector supports RS-232 asynchronous communication standard, direct insert into RS-232 interface serially, convenient operation
- For added convenience, the RS232C DB-9’s male / female genders are reversible with the included thumbscrews

## Product Details

- **Compatible Devices:** PC
- **Specific Uses For Product:** PC
- **Connector Type:** DB9
- **Color:** Black
- **Item dimensions L x W x H:** 2.6 x 1.3 x 0.7 inches

## Images

![DTECH Port Powered RS232 to RS232 Serial Port Isolator Optic Electric Adapter to Protect You PC and RS-232 Device - Image 1](https://m.media-amazon.com/images/I/51dWrUg1YqL.jpg)

## Questions & Answers

**Q: I installed dt-9011 rs232 but cannot find the driver for Windows 10. Where can I download the driver?**
A: For the RS232 serial isolator itself, there is no need of driver, if you use the isolator with other serial adapter like USB to serial adapter, you may find the driver from the supplier of the USB to serial adapter. And if you purchased USB to serial adapter from us, pls contact us directly via the order page "contact seller", so we can tell which driver you need.

**Q: Will this work for a usb/serial line from my macmini to my transciever (i.e., is there sufficient power to get the signals accross)?**
A: Yes, this RS232 serial port isolator can be connected with a usb to serial cord, but please make sure that serial port pin of the cable is a standard 9 pin to get sufficient power or you may add a DC 9V power supply to pin 7.

**Q: Would this work for a ROC809?**
A: As long as your device is with RS232 port, it will work. If have any further question, please feel free to contact us via the order page directly anytime.

**Q: Is there optical isolation on all three lines: txd, rxd and gnd ?**
A: Yes, it's right.

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**Shop now:** [https://www.desertcart.dk/products/34940729-dtech-port-powered-rs232-to-rs232-serial-port-isolator-optic](https://www.desertcart.dk/products/34940729-dtech-port-powered-rs232-to-rs232-serial-port-isolator-optic)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-09*