RS-FS9009-03 Red Lion Fiber Optic Converter Module

Product Description

The RS-FS9009-03 is an industrial fiber optic signal converter module from Red Lion. It converts electrical serial RS485 signals into optical fiber transmission signals, used for long-distance, noise-immune communication in heavy industrial environments. It isolates electrical signals to eliminate ground loop interference and protect host equipment from surge damage, widely deployed for serial bus extension on PLC and DCS systems.

Features

• Part Number: RS-FS9009-03, Brand: Red Lion
• Signal conversion: RS485 electrical signal ↔ fiber optic signal
• Fiber type: Multi-mode fiber, ST fiber connector
• Transmission distance: Up to 2 km (multi-mode)
• Data rate: Supports up to 115.2 kbps serial baud rate
• Isolation: Galvanic isolation between electrical and optical sides, surge protection
• Power supply: 12–24 VDC industrial power supply
• Enclosure: DIN rail mount, IP30, wide operating temperature range
• Status indicators: Power, TX, RX LED indicators for quick fault diagnosis
• Certifications: CE, UL, RoHS compliant
• Manufacturer Status: Active spare part, original new stock, surplus and refurbished units available
• Typical gross weight: approx 0.22 kg, origin: United States

Applications

• Factory automation RS485 bus long-distance extension
• Power plant, water treatment, mining communication anti-interference transformation
• Oil & gas, petrochemical field serial signal isolation transmission
• PLC, weighing instrument, field sensor Modbus-RTU communication extension
• Ground loop noise suppression and lightning surge protection for serial links

FAQ

Q: Is RS-FS9009-03 point-to-point only?
A: Yes, this model is point-to-point fiber converter; one transmitter matches one receiver for RS485 communication.

Q: Can it support Modbus RTU?
A: Yes, it is transparent for Modbus RTU and other RS485 protocols, no protocol configuration required.

Q: What is the difference between RS-FS9009-03 and RS-FS9009-02?
A: The suffix defines fiber connector type and wavelength; 03 is ST multi-mode version, 02 may be other connector variants.