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What should be the color of OM3 cable?

Quote from James on May 4, 2022, 1:17 AM

My client is asking for plenum grade OM3 fiber cable. We make black sheathed fiber optic cables. Is there any color code for OM3 cables?


My client is asking for plenum grade OM3 fiber cable. We make black sheathed fiber optic cables. Is there any color code for OM3 cables?

Quote from Fiber on May 4, 2022, 1:20 AM

Yes, a black color sheath which is given for conventional outdoor fiber optic cables is not recommended. Since this plenum cable would be installed along with other cables, it must be identified separately by its sheath color.

For Non-military applications, OM3 fiber cables have a light blue color. OM3 fiber has a core diameter of 50 microns and a cladding diameter of 125 microns. For Military applications, the sheath color is not specified and hence you can negotiate with the end-user.


Yes, a black color sheath which is given for conventional outdoor fiber optic cables is not recommended. Since this plenum cable would be installed along with other cables, it must be identified separately by its sheath color.

For Non-military applications, OM3 fiber cables have a light blue color. OM3 fiber has a core diameter of 50 microns and a cladding diameter of 125 microns. For Military applications, the sheath color is not specified and hence you can negotiate with the end-user.

Quote from Praveen Gupta on May 4, 2022, 1:23 AM

OM3 fiber cables shall have Aqua color. As per TIA 598 standards, OM3 and OM4 fiber cables made for Riser and Plenum applications shall be Aqua color. Aqua color is a light blue color.


OM3 fiber cables shall have Aqua color. As per TIA 598 standards, OM3 and OM4 fiber cables made for Riser and Plenum applications shall be Aqua color. Aqua color is a light blue color.

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