OTDR Series e-Manual, D07-00-076P-RevC00 Page 38 of 107
Color Coding
The buffer or jacket on patchcords is often color-coded to indicate the type of fiber used.
Connector boot
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 or E2000) typically use a color-coded shell.
Standard color coding for jackets and boots (or connector shells) are shown below:
10G laser-optimized 50/125um multimode optical fiber
Obsolete color code for multimode fiber
Sometimes used to designate polarization maintaining fiber
Color Code of Connector Boot
Blue Physical Contact (PC), 0°
Mostly used for singlemode fibers; some manufacturers use this for
polarization-maintaining optical fiber.
Green Angle Polished (APC), 8°
Singlemode only, not available for multimode fibers
Physical Contact (PC), 0°
Physical Contact (PC), 0°
Red High optical power. Sometimes used to connect external pump lasers or
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