Phoenix Contact PSI-MOS-PROFIBFO 850 E Order No. 2708274 FO converters Media converters
Phoenix Contact PSI-MOS-PROFIB/FO 850 E
Order Number: 2708274 — Industrial-Grade PROFIBUS to Fiber Media Converter
Product Overview
The PSI-MOS-PROFIB/FO 850 E is a DIN rail-mountable fiber converter that transparently and losslessly converts copper PROFIBUS DP/DP-V1 signals to multimode fiber (850 nm, BFOC/ST interface). It supports full-rate auto-sensing from 9.6 kbps to 12 Mbps and features bit retiming, ensuring signal integrity at any cascade depth. It is ideal for applications over long distances, in areas subject to high EMC interference, or in explosion-proof areas.
Core Advantages
Integrated Optical Signal Diagnostics
• Real-time monitoring of optical power and link quality, providing early warning of fiber aging or breakage
• Floating relay alarm contacts for connection to SCADA or DCS alarm systems
High-Level Safety Isolation
• PROFIBUS // optical port // power supply // DIN rail connector: fully electrically isolated (1.5 kVrms)
• Built-in intrinsically safe fiber optic Ex op is interface for direct connection to Zone 1 equipment. The entire device is ATEX Zone 2 certified
Modular Redundancy Design
• DIN rail connector supports power and data cascading, seamlessly stacking PSI copper cable repeaters to reduce cabling
• 18–30 VDC redundant power supply with automatic switchover upon power failure, improving system availability
Industrial-Grade Quality
• Operating temperature range: –20 to +60°C; vibration and shock resistance in accordance with IEC 60068-2-6/-27
• DNV GL shipbuilding certification: meets all classification society requirements for salt spray, damp heat, and vibration
• Maintenance-free metal housing, IP20 protection, quick 35 mm DIN rail mounting
Technical Specifications
• Order Number: 2708274
• Fiber Optic Interface: 1 x BFOC/ST, 850 nm, multimode 50/125 µm or 62.5/125 µm
• Transmission Distance: ≤ 3.3 km (62.5/125 µm, 3 dB system margin)
• Data Rate: 9.6 kbps–12 Mbps, auto-negotiable/DIP-settable
• Power Supply: 24 VDC (18–30 VDC), typical 120 mA
• Dimensions: 35 × 99 × 105 mm (W × H × D)
• Certifications: CE, ATEX Zone 2, UL/cULus, DNV GL
Typical Applications
• Petrochemical, Pharmaceutical Zone 2, PLC-DCS Long-Distance Communication
• Port gantry cranes and ship decks in high-electromagnetic-interference environments
• Tunnels and rail transit backbones with PROFIBUS fiber-optic ring network redundancy
Product Images
Related Products
| PSI-MOS-PROFIB/FO 850 T-SO - 2708614 | PSI-MOS-PROFIB/FO 660 E - 2708290 |
| PSI-MOS-PROFIB/FO 850 T - 2708261 | PSI-MOS-PROFIB/FO 1300 E - 2708559 |
| PSI-MOS-PROFIB/FO 660 T - 2708287 | PSI-MOS-PROFIB/FO 1300 T - 2708892 |
| PSI-MOS-RS485W2/FO 850 E - 2708339 | PSI-MOS-RS485W2/FO 850 T |
| PSI-MOS-RS485W2/FO 850 T - 2708326 | PSI-MOS-RS485W2/FO 1300 E - 2708562 |
| PSI-MOS-RS485W2/FO 1300 T - 2708342 | PSI-MOS-RS422/FO 660 E - 2708384 |
| PSI-MOS-RS422/FO 660 T - 2708355 | PSI-MOS-RS422/FO 850 E - 2708397 |
| PSI-MOS-RS422/FO 850 T - 2708575 | PSI-MOS-RS232/FO 850 E - 2708371 |
| PSI-MOS-RS232/FO 850 T - 2708423 | PSI-MOS-RS232/FO 1300 E - 2708588 |
| PSI-MOS-RS232/FO 1300 T - 2708863 | PSI-REP-PROFIBUS/12MB - 2708863 |
