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How to Choose Fiber Optic Patch Cord?

Fiber optic patch cords are essential components in modern telecommunications and data networking, facilitating high-speed data transmission between devices. Choosing the right patch cord is crucial for ensuring optimal performance and reliability in your network.

This article will guide you through key considerations to help you make an informed decision when selecting a fiber optic patch cord.

1. Cable Type and Connector Compatibility

Various network architectures have distinct demands when it comes to cable types and connector configurations. It is crucial to comprehend the specific requirements of your network and carefully select a patch cord with the appropriate cable type (single-mode or multi-mode) and connectors (such as SC, LC, ST, etc.). 

For longer-distance transmissions, single-mode fiber (SMF) is preferred, while multi-mode fiber (MMF) is suitable for shorter-distance connections. Common connector types include SC, ideal for versatile use in data centers;

SC

LC, favored for high-density applications, such as data centers, telecommunication cabinets, FTTH deployments, high-speed computing environments, etc;

LC

and MTP/MPO, designed for high-density, parallel optical links in data centers.

MPO

2. Fiber Count and Configuration

Consider the number of fibers required for your application. Patch cords come in various configurations, including simplex (one fiber) and duplex (two fibers).

Simplex patch cords consist of a single fiber, typically used for applications where only one-way communication is needed, such as broadcasting, security camera installations, fiber-optic sensors, etc. Duplex patch cords, on the other hand, contain two fibers and are commonly used for bidirectional communication, such as in data transmission where information needs to be sent and received simultaneously, such as networking, data centers, telecommunication networks, FTTH applications, video conferencing systems, etc.

Simplex Fiber Patch Cord VS Duplex Fiber Patch Cord

When choosing between simplex and duplex patch cords, consider the nature of your communication needs. If you require a unidirectional link, a simplex patch cord is sufficient. For applications involving two-way communication, such as in networking or telecommunications, a duplex patch cord is the appropriate choice.

3. Cable Length

Common fiber optic patch cord lengths range from 1 meter (short connections within server racks) to 10 meters (interconnecting network devices in a data center), with the choice dependent on the specific distance requirements of the application; for instance, a 2-meter patch cord might be suitable for connecting equipment within the same server rack, while a 10-meter cord could link devices across different racks in a data center.

Choose the cable length based on the distance between devices, ensuring optimal performance by avoiding excessive lengths that may lead to signal loss and attenuation.

4. Jacket Material and Durability

Consider the environmental conditions in which the patch cord will be deployed. The jacket material should be robust enough to withstand factors like temperature variations, humidity, and physical stress. 

Common jacket materials for fiber optic patch cords include PVC (Polyvinyl Chloride), LSZH (Low Smoke Zero Halogen), and OFNP (Optical Fiber Nonconductive Plenum). PVC is suitable for general indoor use, LSZH is ideal in environments where low smoke and toxicity are critical (such as in data centers), and OFNP is recommended for plenum spaces where fire safety is a concern (common in commercial buildings). 

When choosing, consider the specific environmental conditions and safety requirements of the intended application.

5. Connector Polish Type

The connector polish type affects the efficiency of light transmission. Common polishing types of fiber optic patch cords include UPC (Ultra Physical Contact), APC (Angled Physical Contact), and PC (Physical Contact). 

Polishing Type

UPC is suitable for general applications, APC is preferred for scenarios requiring minimal back reflection (e.g., in high-end communication systems, FTTx networks), and PC is commonly used in standard applications like LANs and data centers. When choosing a polishing type, consider factors such as insertion loss, return loss, and the specific requirements of the application to ensure optimal performance.

6. Ease of Installation and Flexibility

Opt for patch cords that are easy to install and provide flexibility in connecting devices. For example, LC (Lucent Connector) fiber optic patch cords are known for being easy to install and flexible. The LC connector’s small form factor and push-pull design make it user-friendly, and its compact size contributes to easier cable management in tight spaces. LC patch cords are preferred for easy installation and flexibility in data centers and high-density networks.

LC

In addition, patch cords with reinforced connectors, strain relief, and bend-insensitive fibers can enhance durability, reducing the risk of damage during installation or maintenance. For instance, those with Kevlar reinforcement withstand bending and pulling forces, making them ideal for demanding applications where longevity is crucial.

7. Budget Considerations

While quality is paramount, it’s important to consider your budget constraints. Evaluate different options based on their performance, durability, and overall value to find a patch cord that meets your requirements without exceeding your budget.

Which fiber optic patch cord is more expensive?

When other conditions are the same, single-mode fiber optic patch cords tend to be more expensive than multi-mode ones. Several factors contribute to the higher cost, including the precision required for single-mode connections, the use of more advanced manufacturing processes, and the higher quality components needed for longer-distance transmissions. 

How to choose between high price and low price?

When choosing between high-priced and low-priced products, consider factors such as the specific requirements of your application, the desired performance level, and the budget constraints. High-priced products may be justified in situations where long-distance and high-performance transmissions are critical, while low-priced options may suffice for shorter-distance connections in more budget-sensitive scenarios. The choice ultimately depends on the specific needs and priorities of the given application.

8. Brand Reputation and Standards Compliance

Choose patch cords from reputable manufacturers known for producing high-quality products. Ensure that the patch cords comply with industry standards to guarantee compatibility and performance in diverse networking environments. Common industry standards include:

  • TIA/EIA-568: This standard provides guidelines for telecommunications cabling systems, including fiber optic patch cords, ensuring consistency in installations.
  • ISO/IEC 11801: An international standard for generic cabling in customer premises, covering various aspects, including fiber optic patch cord specifications.
  • Telcordia GR-326-CORE: This standard specifies the requirements for fiber optic connectors and is often referenced for quality assurance in telecommunications networks.
  • IEC 61753: Part of the International Electrotechnical Commission’s standards, it covers performance and interface standards for fiber optic connectors.
  • RoHS Compliance: Ensures that patch cords meet the Restriction of Hazardous Substances directive, indicating that they are free from certain hazardous materials.

Conclusion

Selecting the right fiber optic patch cord is a critical decision that directly impacts the performance and reliability of your network. By considering factors such as cable type, connector compatibility, fiber count, cable length, mode, jacket material, connector polish type, ease of installation, budget, and brand reputation, you can make an informed choice that aligns with your network’s specific needs. Investing time in understanding these considerations will contribute to the overall efficiency and success of your fiber optic infrastructure.

James Hsu

James Hsu

Hello, I'm James Hsu, a sales representative at Hello Signal. I specialize in Fiber Optic Cables, Fiber Optic Patch Cords, Pigtails, ONU/OLT and WDM. I can recommend the most suitable products at competitive prices, ensuring worry-free service. Feel free to contact me with any questions.

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