DYS Fiber Optic · Tools
Fiber optic tools & reference cards
Practical, manufacturer-built tools for engineers and buyers — an interactive certification checker plus printable spec cards you can keep at your desk.
Reference cards
Printable reference cards (PDF)
One-page spec cards built from DYS Fiber Optic's own measured data — free to download and keep.
Fiber Optic Cable Size Chart
Core & cladding sizes, DYS cable diameters with production tolerances, and governing standards.
OM1–OM5 Multimode Fiber Grades
Bandwidth, 10G reach, attenuation and bend-insensitive options for every multimode grade.
Fiber Optic Color Codes (TIA-598)
The 12-fiber sequence, buffer-tube map to 144F, plus jacket and connector colors.