Black Box EFN310-020M-STST Fiber Optic Duplex Patch Cable - 65. 6 ft Single-mode 9/125 µm - 2 x ST Male to 2 x ST Male - Yellow OFNR
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Product Features
Technical Overview
This fiber optic patch cable utilizes single-mode fiber technology, which supports higher bandwidth over longer distances compared to multimode alternatives, making it ideal for backbone connections, inter-building links, and high-speed network infrastructures. The 9/125 µm core/cladding specification ensures precise light transmission for efficient data transfer.
Each end of the cable is terminated with two ST male connectors, providing a duplex configuration that supports simultaneous transmit and receive channels. The ST connector design offers a robust, twist-lock mechanism for secure connections, reducing the risk of accidental disconnections in active network environments.
Key Product Advantages
This cable delivers high-performance connectivity with features tailored for professional network deployments. Its single-mode fiber core enables low-latency, high-speed data access across extended distances, supporting critical applications where data integrity and speed are paramount.
Durable Construction
The OFNR-rated PVC jacket provides flame resistance and crush protection, ensuring long-term reliability in rack-mounted, under-floor, or overhead cable runs.
- Withstands physical stress
- Flame-retardant design
- Suitable for plenum spaces
Optimized Connectivity
With ST connectors on both ends, this cable ensures compatible, secure connections to a wide range of fiber optic network equipment, including switches, routers, and media converters.
- Twist-lock connector security
- Duplex for full-duplex data flow
- Industry-standard interface
Deployment / Use Cases
This fiber optic patch cable is engineered for scenarios requiring robust, high-speed data links. It is commonly deployed in data centers to connect servers to core switches, in enterprise networks for backbone infrastructure, and in telecommunications setups for inter-facility connections.
Typical applications include extending network segments between buildings, linking network racks within a server room, and integrating with fiber optic distribution frames. The crush-resistant jacket and reliable connectors make it suitable for environments with high cable density or frequent reconfigurations.
Highlights
- 65.6 ft single-mode fiber optic patch cable for extended reach
- Duplex configuration with 2 x ST male connectors on each end
- 9/125 µm core/cladding for efficient long-distance data transmission
- OFNR-rated yellow PVC jacket for crush resistance and safety
- Lifetime warranty for long-term reliability assurance
- Compatible with network devices requiring ST fiber connections
- Ideal for data centers, enterprise networks, and telecom setups
- Bright yellow color aids in cable management and identification
Specifications
| Specifications | |
|---|---|
| Manufacturer | Black Box Corporation |
| Manufacturer Part Number | EFN310-020M-STST |
| Brand Name | Black Box |
| Product Name | Fiber Optic Duplex Patch Network Cable |
| Product Type | Network Cable |
| Technical Information | |
| Cable Type | Fiber Optic |
| Cable Characteristic | Patch Cable |
| Fiber Optic Mode | Single-mode |
| Fiber Optic Cable Core/Cladding Specification | 9/125 µm |
| Cable Length | 65.6 ft |
| Connector Type on First End | ST Network - Male |
| Connector on First End Details | 2 x ST Network - Male |
| Connector Type on Second End | ST Network - Male |
| Connector on Second End Details | 2 x ST Network - Male |
| Jacket Type | OFNR |
| Device Supported | Network Device |
| Features | Crush Resistant |
| Physical Characteristics | |
| Color Family | Yellow |
| Product Color | Yellow |
| Jacket Material | Polyvinyl Chloride (PVC) |
| Miscellaneous | |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | Lifetime |
FAQ
What is the difference between single-mode and multimode fiber in this cable?
This cable uses single-mode fiber, which has a smaller core (9/125 µm) designed for long-distance, high-bandwidth transmission with minimal signal loss, typically over kilometers. It is ideal for backbone networks and inter-building links, whereas multimode fiber is better for shorter distances within a building.
What does the OFNR jacket rating mean for installation?
OFNR stands for Optical Fiber Non-Conductive Riser, indicating the jacket is flame-retardant and suitable for use in vertical riser spaces between floors of a building. This rating ensures compliance with safety codes for plenum and riser environments, providing added protection in commercial installations.
Can this cable be used for connecting network switches to servers?
Yes, this duplex patch cable is designed to connect network devices like switches, routers, and servers that have ST fiber optic ports. The duplex configuration supports simultaneous transmit and receive channels, making it effective for full-duplex data communication in data center or enterprise setups.
What is the significance of the 9/125 µm specification?
The 9/125 µm specification refers to the core and cladding diameters of the fiber: 9 micrometers for the core and 125 micrometers for the cladding. This precise geometry in single-mode fiber allows for efficient light propagation with low dispersion, enabling high-speed data transfer over long distances without significant signal degradation.