PHOENIX CONTACT 2708274 Mos Profib Fo Fiber Optic Converter Profib/fo 850

( Brand: Phoenix Contact ), ( Manufacturer Part Number: 2708274 ), ( Part Type: Converter ), ( Controller Platform: Guard Plc ), ( Country Of Origin: Germany )

Review PHOENIX CONTACT Psi-mos-profib/fo 850 Fiber Optic Converter Parts

The **Phoenix Contact 2708274 PSI-MOS-ProFIB/FO 850** is a high-performance, industrial-grade fiber optic converter designed to seamlessly bridge the gap between robust industrial communication protocols and high-speed fiber optic networks. Engineered for demanding environments, this compact yet versatile device converts digital signals from the **PROFIBUS DP** or **PROFINET** industrial automation networks into a reliable fiber optic transmission format, ensuring long-distance data integrity and resistance to electromagnetic interference (EMI) and radio frequency interference (RFI). The unit operates at a wavelength of **850 nm**, a standard choice for multimode fiber applications, making it ideal for installations where cost-effective, shorter-range connectivity is required while maintaining high bandwidth and low latency. Its **MOS (Modular Optical System)** architecture allows for flexible integration into existing infrastructure, supporting both **single-mode and multimode fiber** configurations, though it is optimized for the latter. The converter features a **PROFIBUS DP** interface on one side, enabling direct connection to master or slave devices in a PROFIBUS network, while the fiber optic port on the other end provides a robust, high-speed link capable of transmitting data over distances up to **500 meters** in multimode fiber, significantly extending the reach of industrial networks beyond the limitations of traditional copper-based solutions. Built to withstand harsh industrial conditions, the device is housed in a rugged, metal enclosure with **IP65 protection**, ensuring durability in environments exposed to dust, moisture, and temperature fluctuations ranging from **-40 C to 70 C**, making it suitable for applications in manufacturing plants, oil and gas facilities, or outdoor automation systems. Additionally, the **ProFIB/FO** model incorporates advanced error detection and correction mechanisms, minimizing packet loss and ensuring stable communication even under challenging conditions. Whether deployed in a new installation or as part of an existing network upgrade, this converter serves as a critical link for enhancing reliability, scalability, and performance in industrial automation systems.

### **Phoenix Contact 2708274 (PSI-MOS-PROFIB/FO 850) Fiber Optic Converter Pros and Cons**

#### **Pros**

1. **High Performance and Reliability**

The device is designed for industrial automation, ensuring robust operation in harsh environments. It supports high-speed data transmission with minimal latency, making it suitable for real-time applications like PROFINET and PROFIBUS.

2. **Fiber Optic Connectivity**

The 850nm fiber optic interface provides immunity to electromagnetic interference (EMI) and radio frequency interference (RFI), reducing signal degradation in noisy industrial settings. This is particularly advantageous in environments with heavy electrical equipment or high-voltage systems.

3. **Compatibility with PROFINET and PROFIBUS**

The converter supports both PROFINET (IEEE 802.3) and PROFIBUS DP, making it versatile for integration into existing industrial networks. This dual-protocol support simplifies migration between Ethernet-based and fieldbus systems.

4. **Compact and Modular Design**

The device is designed for easy installation in 17.5mm rail-mounted enclosures, saving space in control panels or distributed systems. Its modular nature allows for easy replacement or upgrades without disrupting the entire network.

5. **Low Latency and High Bandwidth**

The 850nm fiber optic link ensures fast data transfer rates, which is critical for applications requiring real-time communication, such as motion control, PLC synchronization, or distributed I/O systems.

6. **Industrial-Grade Build**

Phoenix Contact is a well-known manufacturer of industrial networking components, and this device is built to withstand temperature fluctuations, humidity, and mechanical stress, ensuring long-term reliability in demanding environments.

7. **Easy Configuration and Integration**

The device supports standard industrial protocols, and Phoenix Contact provides tools (such as their configuration software) to simplify setup. It can be integrated into larger networks with minimal additional hardware or complex wiring.

8. **Future-Proofing**

By using fiber optics, the converter future-proofs the network against potential electromagnetic interference issues that may arise as industrial environments become more complex. It also supports higher data rates than traditional copper-based solutions.

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#### **Cons**

1. **Cost**

Fiber optic converters, especially those from reputable brands like Phoenix Contact, are generally more expensive than copper-based alternatives. The initial investment may be higher, though long-term reliability can offset this cost.

2. **Complex Installation**

While the device itself is compact, fiber optic cabling requires careful handling to avoid breakage or signal loss. Proper termination, alignment, and testing of fiber connections may require specialized knowledge or tools, increasing installation time and potential costs.

3. **Limited Range Compared to Copper (in Some Cases)**

While fiber optics excel in EMI resistance and bandwidth, the maximum distance for 850nm multimode fiber is typically shorter than that of high-quality copper cables (e.g., Cat 6 or Cat 6a) in certain applications. However, for most industrial setups, fiber optics provide sufficient range (up to 550 meters for multimode fiber).

4. **Compatibility with Legacy Systems**

If the existing network relies heavily on copper-based devices or protocols, integrating this fiber optic converter may require additional hardware (e.g., media converters) or network redesign, adding complexity and cost.

5. **Potential for Human Error in Fiber Handling**

Fiber optic cables are fragile, and improper handling during installation or maintenance can lead to broken fibers, signal loss, or costly downtime. Training personnel to handle fiber optics properly may be necessary.

6. **Limited Availability of Spare Parts**

While Phoenix Contact is a reliable brand, finding spare parts or replacements for older models may be more difficult compared to more common industrial components. Always verify the device s lifecycle and support status before purchasing.

7. **No Built-in Redundancy (in Basic Model)**

The 2708274 is a single-converter unit. For critical applications requiring high availability, additional redundancy (e.g., dual converters or ring topology) may be needed, increasing system complexity and cost.

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### **Conclusion**

The **Phoenix Contact 2708274 PSI-MOS-PROFIB/FO 850** is a high-quality fiber optic converter ideal for industrial environments where reliability, EMI resistance, and high-speed data transmission are prioritized. Its support for PROFINET and PROFIBUS, along with robust industrial design, makes it a strong choice for automation systems requiring fiber optic connectivity.

However, the higher upfront cost, potential complexity of fiber installation, and the need for specialized knowledge to handle fiber optics may pose challenges. If your application demands long-distance, interference-free communication and you can justify the investment, this converter is an excellent choice. For simpler or cost-sensitive applications, a copper-based solution might suffice.

### **Recommendation**

- Your industrial network requires high-speed, EMI-resistant communication.

- You are upgrading from copper to fiber optics for future-proofing.

- Your application involves PROFINET or PROFIBUS, and you need reliable, long-term performance.

- You have the budget and technical expertise to handle fiber optic installation and maintenance.

- Your budget is constrained, and a copper-based solution (e.g., a media converter with copper ports) would suffice.

- Your network does not require the high bandwidth or EMI resistance of fiber optics.

- You lack the technical resources to properly install or troubleshoot fiber optic connections.

For most industrial automation environments where fiber optics are necessary, this converter is a **strong and reliable recommendation**. Always verify compatibility with your existing network and consult with a network specialist if unsure about installation requirements.

Details:

Important Note regarding condition: The bottom mounting clip/plastic switch area is broken. Model: PSI-MOS-PROFIB/FO 850 E. All shipping, packaging materials and boxes must be saved. Order No: 2708274.

Untested for full functionality. Ask before you bid/buy. Phoenix Contact PSI-MOS-PROFIB/FO 850 E 2708274 Fiber Optic Converter - PARTS, Technical Specifications: Brand.

part #: 2708274 prices

• $218.99-$1109.62

specifications sensoindustria:

• brand: Phoenix Contact
• mpn: 2708274
• part type: Converter
• controller platform: Guard Plc
• country of origin: Germany

shipping sensoindustria:

• transit: 2-4 Days
• cost: $0.00
• type: Calculated
• class: Standard, One-day
• carrier: USPS, FedEx
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery, FedEx Priority Overnight

seller sensoindustria:

• # reviews: 47157
• city: Chicago, Illinois
• rating: 99.7%

offer sensoindustria:

• options: Ship-to-home
• quantity: 1
• started: May 19, 2026
• availability: In Stock
• sold: 0

returns sensoindustria:

• time: 30 Days
• paid by: Seller
• method: Money back
• policy: Returns Accepted

general sensoindustria:

• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
• condition: For parts or not working

payments sensoindustria:

• other
• wallet: Paypal
• credit card: Mastercard

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