Professional-Grade OM4 Fiber Patch Cord for Next-Generation Data Center Networks

High-Performance LC to LC Multimode Fiber Cabling with Advanced Bend-Resistance and Compact Design for Dense Network Environments

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How can you maximize network capacity while minimizing physical footprint in existing data center spaces?

CRX's OM4 LC to LC patch cord with short boot design provides the compact solution you need. Its bend-resistant construction and high-density compatibility enable efficient cable routing in constrained environments while supporting next-generation 25G and 100G Ethernet speeds. With a 25-year product guarantee and proven TIA/EIA compliance, you gain the reliability required for mission-critical infrastructure. Contact CRX to discuss how our fiber cabling solutions can optimize your data center layout and performance.

Supporting multi-speed Ethernet transmission up to 100G (100Gbase-SWDM4 at 100m), this OM4 multimode patch cord offers exceptional versatility for evolving network infrastructure. With insertion loss below 0.3dB and return loss exceeding 35dB, the 25-meter cable ensures consistent performance in data, video, and voice services across SAN and LAN deployments. CRX's 25-year product guarantee and comprehensive technical support through CRX Academy provide confidence in long-term network reliability and operational excellence for organizations requiring professional-grade fiber cabling solutions.

OM4 LC to LC Duplex Fiber Multimode Patch Cord Short Boot 25M in LSZH Jacket

B40-OM4KLIJJ025

LC OM4 Multimode Duplex Patch Cord

LC OM4 Zipcord Fiber Patch Cord
LC OM4 Zipcord Fiber Patch Cord

LC to LC OM4 patch cord features in its' 18.5mm short boot to work with the high-density data center network environment. The bend-resistant LC to LC om4 fiber cable offer protection and quality transmission, and follow TIA/EIA 492AAAx and IEC60793-2-50 standards. The LC-LC multimode patch cord is ideal for data center, housing, education, LAN, SAN, commercial applications in data, video, and voice services.

The OM4 Fiber Optic Support 10G / 25G / 40G / 100G Application
  • 10G Ethernet speed up to 400m at 850nm (10Gbase-SR)
  • 25G Ethernet speed up to 100m at 850nm (25Gbase-SR)
  • 40G Ethernet speed up to 350m at 850nm (40Gbase-SWDM4)
  • 100G Ethernet speed up to 100m at 850nm (100Gbase-SWDM4)

Features

  • Work with high-density cabling environment
  • Provide sharper bending radius and flexibility in compact space
  • Mechanical protection by zip cord structured
  • Performance complies with IEC 60793-2-10 and ANSI/TIA-492AAAx standard

Product Classification

Indoor or OutdoorIndoor
SolutionFiber
Product NameFiber Patch Cord

General Specifications

Item model numberB40-OM4KLIJJ025
ColorViolet
Length(M)25
Connector TypeLC

Material Specifications

JacketLSZH
Fiber ModeOM4
Fiber Count2
Insertion Loss<0.3dB
Return Loss>35dB
Polish TypePC
Cable Diameter2.0mm x 4.2mm
PolarityA(Tx) to B(Rx)
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Additional Info
Additional Info for Fiber Optic Fiber

The Difference of Single-Mode (SM) and Multi-Mode (MM) Fiber

  • The core diameter of single-mode fiber is much smaller than multimode fiber, the single-mode fiber core diameter is 9µm; the single-mode fiber wavelength is 1310 nm and 1550 nm. 
  • Multimode fiber core diameter: 50µm or 62.5µm. 850nm and 1300nm wavelengths are used in multimode fiber cables.

Transmission distance is the key to choosing single-mode or multi-mode fiber, for data centers, multi-mode fiber optic cables are sufficient to meet the distance of 300 - 400 meters. In applications that require distances of up to several kilometers, single-mode fiber is the best choice.

Fiber Path Cord Polish Matters

The light loss will occur when a connector is installed, yet some will cause damage to laser light and disrupt the transmitted signal. Choosing the well polish connector will reduce the back reflections of light.

  • PC: Physical Contact polish with -35dB Return Loss measurement
  • UPC: Ultra Physical Contact polish with -55dB Return Loss measurement
  • APC: Angled Physical Contact polish (8-degree angle) with -60dB Return Loss measurement

Can I mix single-mode and multi-mode fiber?
The core sizes of multimode fiber and single-mode fiber are different, and the transmitted light mode is also different. If two optical fibers are mixed or directly connected together, a large amount of optical loss will be lost, resulting in link jitter or disconnection. Remember, never mix different types of cables randomly.


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