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Serial Single-Mode Dual-Fiber Optic Transceiver

Optical access and telecom site reference Published 01 Feb 2025

Use this reference to prepare product questions for CGWEB NETWORKS. Check interfaces, capacity, protection and installation requirements against the current product documentation.

A Serial Single-Mode Dual-Fiber Optic Transceiver converts RS-232/422/485 serial signals into optical signals for long-distance, bi-directional communication over single-mode fiber.

Overview

A serial single-mode dual-fiber transceiver is designed to transmit serial data over optical fiber, providing immunity to electromagnetic interference (EMI) and enabling long-distance communication. These devices typically operate in pairs, with one unit at each end of the fiber link, supporting point-to-point bi-directional transmission. They are commonly used in industrial, utility, and network environments where reliable serial communication is required over distances far exceeding copper cable limits.

Key Features

Supported Serial Protocols: RS-232, RS-422, RS-485, with both half-duplex and full-duplex operation depending on the model. Fiber Type: Single-mode fiber, dual-fiber configuration (one fiber for transmit, one for receive) for full-duplex communication. Distance Capability: Typically up to 120 km over single-mode fiber, depending on optical power and fiber quality.

Connectors: SC/PC or other standard single-mode fiber connectors; serial ports use terminal block or DB-9 connectors for field wiring. Baud Rate Support: Automatic detection and adjustment for serial devices, ranging from 110 bps to over 1 Mbps, ensuring compatibility with various serial equipment.

EM

I Immunity: Fiber optic transmission eliminates interference from voltage equalization currents and electromagnetic noise, improving data integrity in industrial environments.

Operation and Installation

Pair Requirement: A complete setup requires two transceivers (one for each end of the fiber link) to enable bi-directional communication. Automatic Baud Adjustment: The transceiver can dynamically adjust to changes in the connected device's baud rate without service interruption. Mounting Options: Many models support DIN rail, wall, or chassis mounting for flexible installation in industrial or network racks.

Configuration: Some units include DIP switches for configuring DTE/DCE connections, half/full-duplex modes, and baud rate settings.

Applications

Industrial automation and control systemsUtility and power system monitoringLong-distance serial communication in warehouses, factories, or outdoor installationsIntegration of legacy serial devices into modern fiber networksAdvantagesExtends serial communication distances far beyond copper limitsProvides robust immunity to EMI and electrical noiseSupports multiple serial protocols and automatic baud rate detectionEnables reliable, high-availability network design in industrial environments In summary, a Serial Single-Mode Dual-Fiber Optic Transceiver is a reliable solution for converting serial signals to optical signals, enabling long-distance, interference-free communication for industrial and network applications.

It ensures seamless integration of serial devices into fiber optic networks while maintaining high data integrity and operational flexibility.

Serial Single-Mode Dual-Fiber Optic Transceiver - CGWEB NETWORK INFRASTRUCTURE [PDF]

Serial Single-Mode Dual-Fiber Optic Transceiver
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This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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