Color code on optical Fibre

The buffer or jacket on patchcords is often color-coded to indicate the type of fiber used. The strain relief "boot" that protects the fiber from bending at a connector is color-coded to indicate the type of connection. Connectors with a plastic shell (such as SC connectors) typically use a color-coded shell. Standard color codings for jackets and boots (or connector shells) are shown below: Buffer/jacket color Meaning:
1.Yellow single-mode optical fiber 2.Orange multi-mode optical fiber 3.Aqua 10 gig laser-optimized 50/125 micrometer multi-mode optical fiber
4.Grey outdated color code for multi-mode optical fiber 5.Blue Sometimes used to designate polarization-maintaining optical fiber