What color is multimode fiber optic cable

Multimode fiber optic cables are typically color-coded as orange, gray, aqua, or lime green depending on the fiber type. Standard Colors by Fiber TypeOM1: Usually has an orange jacket and a 62. 5 µm core, commonly used for 100 Megabit Ethernet and short-distance 10 Gigabit Ethernet applications.

OM2: Also typically orange, with a 50 µm core, supporting higher bandwidth than OM1 and commonly used for 1 Gigabit Ethernet. OM3: Features an aqua-colored jacket, optimized for laser-based equipment, supporting 10 Gigabit Ethernet up to 300 meters and higher-speed applications with MPO connectors. OM4: Shares the aqua jacket with OM3 but offers higher modal bandwidth for longer distances and better performance with VCSEL lasers.

Some manufacturers use violet to differentiate OM4 from OM3 in high-density data centers. OM5: Introduced in 2017, OM5 has a lime green jacket and is designed for Short Wave Division Multiplexing (SWDM), allowing multiple channels over a single multimode fiber pair.

Additional Notes

Legacy variations: Some older OM1 or OM2 cables may appear in non-standard colors like gray or orange, so always check the printed markings on the cable for exact specifications. Single-mode distinction: Single-mode fibers are typically yellow, which helps visually differentiate them from multimode cables. Connectors and boots: In some cases, colored strain relief boots or connectors are used to indicate fiber type when the connector body is metallic or difficult to color-code.

Understanding these color codes is essential for proper installation, maintenance, and ensuring compatibility with network equipment.