RS232/ 485/ 422 to Fiber Converter, 2PCS

5 out of 5 based on 3 reviews | Write a review

$299.21

Cheap price serial to fiber converter online for sale. The fiber optic converter supports RS232/ 485/ 422 asynchronous protocols, input voltage DC9-48V, 200mA, wavelength 1310 nm (muti mode), 1310/ 1550 nm (single mode). The fiber converters must be used in pairs, are widely used in industrial automation control network system and security monitoring control network system.

SKU: ATO-UT-277SM

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Delivery date: 6-12 days

Overview

Factory price 2-piece RS232/ 485/ 422 to fiber converter with the fastest transmission rate for RS-232 can be 115.2 kbps, and for RS-485/422 can be 460 kbps, the communication distance can be as far as 4km at multimode, and 20km at single mode.

Specification

Model	ATO-UT-277SM
Asynchronous transmission	Point to point, 460 kbps
Input voltage	DC9-48V, 200mA
Port	RS232/ RS485/ RS422 ports
Wavelength	1310 nm (muti mode), 1310/ 1550 nm (single mode)
Interface	RS-232/ RS485/ RS422: Terminal block; fiber port: with optional SC/ FC/ ST
RS-232	Standard RS-232 3 wire ±15kV ESD protection, as high as 115.2 kbps transmission rate
RS-485/ 422	Auto negotiation, no need switch setting, ±15kV ESD protection
Certificate	CE
Warranty	12 months

Note: The package includes two UT-277SM fiber converters, which need to be paired for use.

Dimension (inch/ mm)

Dimension of rs232/ 485/ 422 to fiber converter

Details

Applications

Tips: What is Fiber Converter?

RS232/ 485/ 422 optical fiber converter realizes one RS232 or RS485 or RS422 through single-mode optical fiber for long-distance transmission. This product has the characteristics of RS485/ 422 interface supporting multi-machine communication and convenient networking. At the same time, due to the use of optical fiber as the transmission medium, it has the advantages of high isolation voltage, anti-electromagnetic interference, and anti-lightning strike.
232/ 485 optical fiber converter is widely used in various industrial control, distributed data acquisition and other occasions, especially suitable for power system automation, traffic control and other departments.

Existing reviews of RS232/ 485/ 422 to Fiber Converter, 2PCS

This converter offers good value for money

This converter meets my needs in both transmission distance and speed. Its flexible interfaces eliminate the hassle of configuration adjustments, and the one-year warranty provides peace of mind. It offers great value for the price.

From: Felix | Date: 07/09/2025

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Raliable and stable fiber converter

The converter is compact and easy to install, and the plug-and-play feature has allowed us to quickly set it up without requiring any technical expertise. The price is also very affordable, making it a very pleasant purchase.

From: Maxwell | Date: 20/02/2023

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Wonderful fiber converter

So far the best fiber converter I have installed. It is well-built and easy to install. Working great and zero issues with connectivity. I am very satisfied with this shopping experience. And I hope you can enjoy it too.

From: David | Date: 22/03/2022

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