---
product_id: 41727057
title: "FRM220-SERIAL-SC20A - RS-232, RS-485, RS-422 Over Single Strand Fiber BiDi Media Converter, 20Km, A Type, Tx:1310/Rx:1550nm"
brand: "ctcunion"
price: "3238 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/41727057-frm220-serial-sc20a-rs-232-rs-485-rs-422-over
store_origin: DK
region: Denmark
---

# 20Km operating distance Power budget 17dB 6-pin screw block connector FRM220-SERIAL-SC20A - RS-232, RS-485, RS-422 Over Single Strand Fiber BiDi Media Converter, 20Km, A Type, Tx:1310/Rx:1550nm

**Brand:** ctcunion
**Price:** 3238 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Connectivity Game!

## Quick Answers

- **What is this?** FRM220-SERIAL-SC20A - RS-232, RS-485, RS-422 Over Single Strand Fiber BiDi Media Converter, 20Km, A Type, Tx:1310/Rx:1550nm by ctcunion
- **How much does it cost?** 3238 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/41727057-frm220-serial-sc20a-rs-232-rs-485-rs-422-over)

## Best For

- ctcunion enthusiasts

## Why This Product

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

## Key Features

- • **Durable Design:** Built to last with a MTBF of 59,000 hours, ensuring your investment is protected.
- • **Seamless Connectivity:** Experience effortless integration with RS-232, RS-485, and RS-422 interfaces.
- • **Robust Power Management:** Enjoy low power consumption under 4W, ensuring efficiency without compromise.
- • **Long-Distance Performance:** Achieve reliable data transmission over 20Km with singlemode fiber.
- • **Versatile Temperature Range:** Operate smoothly in temperatures from 0 to 50°C, perfect for diverse environments.

## Overview

The FRM220-SERIAL-SC20A is a high-performance BiDi media converter designed for seamless RS-232, RS-485, and RS-422 communication over single strand fiber. With a remarkable operating distance of 20Km and a power budget of 17dB, this device ensures reliable data transmission in various environments. Its compact design and robust features make it an essential tool for modern networking needs.

## Description

FRM220-SERIAL-SC20A - RS-232, RS-485, RS-422 Over Single Strand Fiber BiDi Media Converter, 20Km, A Type, Tx:1310/Rx:1550nm

## Features

- Interfaces: 6 pin screw block connector for RS-485/RS-232/RS-422 serial asynchronous port and SC 155M fiber port. Supports 3 and 5 wire mode for RS-232, 2 or 4 wire mode for RS-485 and RS-422 (4 wire only)
- Operating wavelength: BiDirectional Tx:1310/Rx:1550nm singlemode, Operating distance: 20Km on 9/125um fiber, power budget 17dB, Optical connector: single SC
- Front LEDs: PWR, Data, Test, Fiber Link
- Power: External 90-260V AC switching adapter 12VDC@1A with NEMA1-15(2 blades only), US type main plug - included in the box
- Temperature: 0 — 50°C (Operating); 0 — 70°C (Storage), Humidity: 20 — 80% non condensing (Operating); 0 — 90% (Storage), Consumption: less than 4W, Dimensions(WxDxH): 85.6mm x 122.6mm x 20mm, Weight: 340g (without AC adapter), Compliance: CE, FCC Class A, MTBF: 59,000 hours

## Images

![FRM220-SERIAL-SC20A - RS-232, RS-485, RS-422 Over Single Strand Fiber BiDi Media Converter, 20Km, A Type, Tx:1310/Rx:1550nm - Image 1](https://m.media-amazon.com/images/I/414bDumBgNL.jpg)

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**Shop now:** [https://www.desertcart.dk/products/41727057-frm220-serial-sc20a-rs-232-rs-485-rs-422-over](https://www.desertcart.dk/products/41727057-frm220-serial-sc20a-rs-232-rs-485-rs-422-over)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-07*