Bus to Fiber Optic Converter

A CAN bus to fiber optic converter allows CAN signals to be transmitted over optical fiber, enabling long-distance, interference-free communication for industrial networks.

Overview

A CAN bus to fiber optic converter converts electrical CAN signals from copper wiring into optical signals for transmission over fiber optic cables. This technology is widely used in industrial environments to extend communication distances, improve noise immunity, and maintain reliable data transfer in harsh conditions .

Key Features

• Supported Protocols: Most converters support CAN 1.0, CAN 2.0B, CAN FD, and CANopen protocols .
• Transmission Rates: Typical converters handle 0–1 Mbps, with some high-performance models supporting up to 5 Mbps .
• Distance: Fiber optic transmission can reach 20 km or more, depending on the model and fiber type (single-mode or multi-mode), .
• Network Topologies: Converters can support point-to-point, multi-drop bus, star, tree, or ring networks, providing flexibility for complex industrial setups .
• Isolation and Protection: Many units offer optical isolation (e.g., 2 kV) and buffering to prevent data loss, ensuring stable operation in electrically noisy environments .
• Monitoring and Diagnostics: Some converters include LED indicators, fault detection relays, and Fiber Test Modes to verify proper signal transmission .

Applications

• Industrial automation and control systems
• Vehicle and machinery networks requiring long-distance CAN communication
• Harsh environments with high electromagnetic interference
• Integration of CAN networks across multiple buildings or facilities

Example Products

• BE-CAN-FO Series: Supports high baud rates, long-distance transmission up to 20 km, and multi-drop bus or point-to-point topologies .
• ICF-1170I Series (Moxa): Provides 2 kV optical isolation, dual power inputs, and fiber test mode for reliable CAN bus operation .
• DLCAN/DLCAN-R (EKS): Offers flexible network topologies including optical ring structures, robust monitoring with LEDs and fault relays, and high noise immunity . Using a CAN bus to fiber optic converter ensures reliable, high-speed communication over long distances while protecting the network from electrical interference, making it ideal for industrial and automotive applications.