Yellow indicates single-mode fiber, while orange and aqua mark multimode fibers. Follow TIA-606-B standards for labeling. The most efficient labeling system for fiber optic cables comprise these key components: The cable identifier: An alphanumeric code that differentiates this cable from other cables within your facility. Make sure you use a consistent format, such as "FB-03-A142" where FB indicates fiber, 03 is. This guide covers flag labels, thermal printing options, and wrap-around solutions for effective fibre identification in data centres and network infrastructure. Misidentification can cause downtime, disrupt essential services, and create safety hazards in data centers.