Bachmann FM212 FASTBUS Master Module

Overview

The Bachmann FM212 is a high-performance FASTBUS master module designed for distributed automation systems. It connects substations and subdevices over long distances with minimal signal delay. With dual fiber optic interfaces, it delivers fast, reliable, and interference-free communication in demanding industrial environments. The module integrates seamlessly with Bachmann’s M1 system and supports time-critical applications where precision and stability are essential.

Technical Specifications

• Bus Type: FASTBUS master

• Interfaces: 2 × Fiber Optic (FO)

• Supported Slaves: Up to 15 distributed substations (FS21x modules)

• Transmission Medium: Plastic Optical Fiber (POF) or Hard Cladded Silica (HCS)

• Distance Between Stations: POF up to 40 m; HCS up to 150 m; special HCS up to 180 m

• Maximum Total Line Length: 1000 m

• Signal Delay: Extremely low, suitable for time-critical automation tasks

• Galvanic Isolation: 500 V via fiber optic link

• Integrated Power Supply: No (external or via slave modules FS211/N or FS212/N)

• Power Distribution: Supported through FASTBUS slave modules with integrated supply

• Compatibility: Fully compatible with Bachmann subdevices such as ISI222

• Form Factor: Compact and robust for space-limited installations

• Mounting: DIN rail or panel mount

• Durability: Built for industrial environments with high reliability under vibration and EMI

• Status Display: RUN/ERR and fiber type indicators

• Operating Temperature: 0 °C to +60 °C

• Storage Temperature: −40 °C to +85 °C

• Relative Humidity (Operation): 5% to 95% non-condensing