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Optical Transceiver
Optical Fiber Introduction
Home Optical Fiber Introduction

OM5 VS OM3&OM4

  • August 16. 2017
As data centers grow in demand for high bandwidth and high-speed applications, OM5 patch cord will become a new multimode patch cord for high-speed data center applications. This has aroused widespread concern in the industry. So what are the differences between OM5 and OM3/OM4? Let's study together today!

OM5 patch cords are initially known as broadband multimode patch cord. It is a new standard of patch cord, defined by TIA and IEC. The core diameter is 50/125μm. Compared with OM3 and OM4, OM5 patch cord can be used for higher bandwidth applications. In February 2017, TIA stipulated that the OM5 patch cord's identifying color was Aqua green.

What are the differences between OM5 and OM3/OM4 patch cord?
Sheath color: Generally the outer sheath color of OM3 and OM4 patch cord is aqua and purple, while OM5 is aqua green.
OM5 and OM3/OM4 patch cord

Wavelength: The working wavelength of the OM5 patch cord is 850/1300nm, and can support 4 wavelengths at least. The usual working wavelengths of OM3 and OM4 are 850nm and 1310nm, and the transmission distance of this multimode optical patch cord is different in the same wavelength window.


Effective mode bandwidth (EMB): The OM5 patch cord has a higher break in the EMB. It increases the EMB on the 850nm wavelength to 6000MHZ.km, 8000MHZ.km is achieved near the 880nm wavelength, this is far beyond conventional OM3 and OM4 multimode patch cords.

If you want to know more about OM3 and OM4 fiber, welcome to visit the blog on our website: "Multimode fiber design——OM1，OM2，OM3，OM4" .

What are the advantages of OM5 patch cord?
High scalability
cost reduction
Good Compatibility and interoperability
Widely recognized

The introduction of OM5 patch cord has attracted wide attention and discussion, it will bring big changes to the data center. We believe that the OM5 patch cord will be widely used in the near future!

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