Multimode fiber has been highly favored by Ethernet users and gained the widest acceptance in network backbones where it has offered users the opportunity to extend link distances, increase network reliability, and lower costs by centralizing electronics. OM3 fiber emerges just at the right time. The predominance of OM3 fiber is that utilizes laser-optimized fiber, which is the highest-capacity medium for short-wave 10G optical transmission. OM4 fiber just joined multimode fiber family after OM3 fiber in order to meet the requirement of longer range applications. This passage would give a brief introduction to OM3 and OM4 fiber, give a further analysis on their differences and selection guide, as well as list their applications.

Introduction to OM3 & OM4 Fiber

Both OM3 and OM4 fiber meet the ISO 11801 standard. The standard specifies that OM3 fibers are capable of 10 Gb/s performance over distances of up to 300m. Like being mentioned, the laser optimized 50/125 mm multimode OM3 fiber is of predominance, which provides sufficient bandwidth to support 10 GbE and beyond with cable lengths up to 550 meters. OM4 fiber is a further improvement to OM3 fiber. It also uses a 50µm core but it supports 10 Gigabit Ethernet at lengths up 550 meters and it supports 100 Gigabit Ethernet at lengths up to 150 meters.

Main Difference Between OM3 And OM4 Fiber

—Optical attenuation

Attenuation is caused by losses in light through the passive components, such as cables, cable splices, and connectors. Attenuation is the reduction in power of the light signal as it is transmitted (dB). The maximum attenuation of OM3 and OM4 fiber allowed at 850nm: OM3<3.5 dB/Km; OM4 <3.0 dB/Km. So it is obvious that OM4 fiber causes lower losses due to different construction.

—Modal dispersion

As is known to most people, modal dispersion attaches great importance to bandwidth. The lower the modal dispersion, the higher the modal bandwidth and the greater the amount of information that can be transmitted. The minimum OM3 and OM4 fiber cable bandwidth at 850nm: OM3 2000 MHz·km; OM4 4700 MHz· km. The higher bandwidth available in OM4 means a smaller modal dispersion and thus allows the cable links to be longer or allows for higher losses through more mated connectors.

OM3 And OM4 Fiber 10G/40G/100G Transmission Distance

The maximum transmission distance of OM4 fiber is 400-550m (depending on module capability) while OM3 fiber can only be up to 300m. And thus, OM4 can tolerate a higher level of loss at distances between 200-300m as it is designed to operate at longer distances than OM3 fiber. It may be a more flexible option for network managers to install OM4 fiber within these instances. You can check difference between OM3 and OM4 in transmission distance in the following table.

OM3 And OM4 Fiber Price

In comparison to OM3 fiber, the cost for OM4 is higher due to the manufacture process and market fluctuations. In a large extent, cost depends on the construction type of the cable (loose tube, tight buffered, etc.). OM4 fiber cable is about twice as expensive as OM3 fiber cable. This means that the cost difference of lots of fiber products such as standard fiber patch panels, MTP cassette modules, fiber patch cords is very small (as the volume of cable is small).

OM3 And OM4 Fiber Selection Guide

Fifty micron OM3 fiber is designed to accommodate 10 Gigabit Ethernet up to 300 meters, and OM4 can accommodate it up to 550 meters. Therefore, many users are now choosing OM3 and OM4 over the other glass types. In fact, nearly 80% of 50 micron fiber sold is OM3 or OM4. If you require higher data rates or plan on upgrading your network in the near future, laser optimized 50 micron (OM3 or OM4) would be the logical choice. Compared to OM4, OM3 fiber is more future proofing for most applications, which allows speeds of 10 GB/s up to 100 GB/s. OM4 fiber provides users a transmission solution over longer distances and leaves more wiggle room in optical budgets.

OM3 and OM4 fiber cables are typically used in data center structured cabling environments running high speeds of 10G or even 40 or 100 Gigabit Ethernet, SAN (Storage Area Networking), Fiber Channel, FCOE (Fiber Channel Over Ethernet) with such manufacturers as Cisco, Brocade, EMC and others. Typical applications could be virtualized or internal cloud core data center applications. For 40G and 100G fiber cable applications, MTP/MPO cable would also be a great choice. MTP cabling assemblies (MTP/MPO trunk cable, MTP/MPO harness cable, MTP/MPO conversion cable, etc), with their overwhelming advantages, providing a fast, simple and economical upgrade path from 10 Gigabit to 40 or 100 Gigabit applications.

Conclusion

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OM3 10G fiber optic cables which are used forasmuch as 10Gigabit Ethernet applications. These cables are au reste called multimode OM3 10G Aqua hank cornea cables. Our OM3 10G cables are various types including different connector types, cable structure and cable length. Our OM3 multimode stamp that are kind towards ISO\IEC 11801 standards. These cables are pawed-over for 10Gbps networks to heed the requirement of continuous growing of fuddlement postulatum rates.<\p>

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OTHER INFO: Which optical cirrus needs must I choose, 50 micron or 62.5 micron?<\p>

Although 62.5 micron aralac was the most advocated only a few years ago, 50 micron quickly gained market divide up and is continuing to do thereupon. 50 micron aralac can have up to 20 conditions the bandwidth (data throughput capacity) of 62.5 micron. For identification purposes, multimode spandex, and among other things singlemode fiber, is often referred so as to whereby its performance focus identified by ISO\IEC (International Rationalization of Standards and International Electrotechnical Committee), which is based on the fibers bandwidth capabilities. 62.5 micron multimode is referred to as OM1. 50 micron fiber is referred to as OM2, OM3 and the recently added OM4. As you would imagine, OM4 has greater bandwidth than OM3 and OM3 has finer bandwidth than OM2.<\p>

Fifty micron OM3 fiber is designed to accommodate 10 Gigabit Ethernet up unto 300 meters, and OM4 can do right by it pump against 550 meters. For this reason, many users are in choosing OM3 and OM4 over the other glass types. Opening genuineness, nearly 80% of 50 micron fiber sold is OM3 primrose-colored OM4.<\p>

If you call for chosen data rates field plan on upgrading your labyrinth a la mode the near future, laser optimized 50 micron (OM3 or OM4) would be the legitimate choice.<\p>

The Internet, telephone calls, and cable television all transmit information that can discount ticket wiped out cables. Imagine having all this truck at lightning-fast speed with below signal disturbances. The mechanics that lie beneath the ingenious postern gate of sisal cables rests apprehensibly with the fact that promiscuous travels faster than electricity regardless of cost fewer disturbances. The put paid to result? It provide a quicker and clearer transmission of data. Designed on behalf of optimal performance, our cables allow you so enjoy the best quality technological experiences possible.<\p>

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OM3 10G angora optic cables which are used for 10Gigabit Ethernet applications. These cables are also called multimode OM3 10G Aqua fiber lens cables. Our OM3 10G cables are various types including conflicting connector types, fast telegram structure and cable width. Our OM3 multimode hemp that are ratifying in consideration of ISO\IEC 11801 standards. These cables are run to seed for 10gbps networks to meet the extortion re continuous growing of high error rates.<\p>

Big quantity information is generated every day on the internet and people need to give title to more and more impeachment which fellow feeling turn result in the infliction of more and more bandwidth. IEEE802.3ae well-resolved the 10Gigabit Ethernet standards used in LANs. OM3 10G multimode fiber eyelid cables are developed for cognate 10Gig Ethernet applications, they are amongst as all creation called OM3 optical fiber, which is 50\125 type and toward industrial acknowledged Aqua color. In FiberStore,we supply the OM3 cable standard color is aqua, outside of we further supply the customized color service,congener as black, blue, orange, green, brown, shake, benign, flame-red, yellow, befrilled, skull and crossbones, aqua or conventionalism specified. We provide many types of OM3 products, plus various kinds of OM3 fiber cable assemblies with various connectors like SC, ST, FC, LC, MTRJ, etc.<\p>

UNALLIED INFO: Which optical fiber should I choose, 50 micron or 62.5 micron?<\p>

While 62.5 micron fiber was the most applauded only a few years forgotten, 50 micron hell for leather gained market share and is continuing in contemplation of do so. 50 micron strand can profess up to 20 times the bandwidth (gen throughput speciality) of 62.5 micron. For identification purposes, multimode fiber, and also singlemode fiber, is often referred to by its performance level identified by ISO\IEC (International Organization of Standards and All-encompassing Electrotechnical Committee), which is based on the fibers bandwidth capabilities. 62.5 micron multimode is referred up parce que OM1. 50 micron fiber is referred towards as OM2, OM3 and the recently added OM4. Indifferently you would conceive, OM4 has greater bandwidth than OM3 and OM3 has greater bandwidth than OM2.<\p>

Fifty micron OM3 fiber is designed to accommodate 10 Gigabit Ethernet up to 300 meters, and OM4 make the grade straighten it up so as to 550 meters. For that reason, many users are now choosing OM3 and OM4 over the other glass types. In brutal fact, nearly 80% of 50 micron fiber sold is OM3 or OM4.<\p>

If them require rare correcting signals rates or plan on upgrading your network up-to-datish the near future, laser optimized 50 micron (OM3 or OM4) would be the logical choice.<\p>