Fiberdyne Sm Dplx B/I 2.0mm Blue, SC/UPC-SC/UPC, 20m; Part #F9C21R2GC66020MB-TR
Fiberdyne Labs, Inc. fiber backbone. This type of cable complies with the Underwriters Laboratories (UL) fire safety. SC UPC connector is polished with no angle, which causes difference in light reflection.