Differences Between OM3 and OM4 Fiber Patch Cables

The connectors of OM3 and OM4 fiber patch cables will be the same. The commonly used connectors are LC, SC, FC and so forth. Furthermore, the termination of the connectors is equivalent to well. For the fiber optic cable, both OM3 and OM4 fiber patch cables use 50/125 micron (“50” represents the diameter of the core, and “125” represents the diameter of the cladding) multi-mode fiber cables. Furthermore, the fibers of OM3 and OM4 fiber patch cables are laser optimized multi-mode fibers (LOMMF), which are created for use with 850nm vertical-cavity surface- emitting lasers (VCSELS). Finally, OM3 and OM4 fiber patch cables have the same aqua sheaths.

Weighed against the OM3 fiber patch cables, the cable of OM4 fiber patch cables includes a lower attenuation and operates at an increased bandwidth. Both these two factors imply that less power is definitely dropped in the transmission of signal. That’s to state, the transmission distance of OM4 fiber patch cables is beyond that of OM3 fiber patch cables . Furthermore, the effective modal bandwidth (EMB) of OM3 and OM4 fiber patch cables differs as well. The followings are detailed details about the EMB and transmission distances of 10G OM3 fiber patch cables and 10G OM4 fiber patch cables.

The 10G OM3 fiber patch cable specifies an 850nm laser-optimized 50 micron cable with an effective modal bandwidth (EMB) of 2000 MHz/km. It can support 10 Gbps link distances up to 300 meters.

The 10G OM4 fiber patch cable specifies a high-bandwidth 850nm laser-optimized 50 micron cable with a highly effective modal bandwidth of 4700 MHz/km. It could support 10 Gbps link distances of 550 meters.

OEMfibers.com offers both OM3 fiber patch cables and OM4 fiber patch cables terminated with different fiber optic connectors (LC/SC/ST/FC/MTRJ/MU/E2000/SMA). These cables, which may be simplex or duplex and personalized in optical lengths, are 100% optically tested for maximum performance before shipping worldwide.

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