NSA’s fiber optic test option provides loopback Tier 1 Fiber Optic Testing for Optical Loss, Length, Polarity as defined in the IEEE 802.3 series, TIA-568.3-D, IEC-14763-3, as well as customizable limits for both Multimode and Singlemode Fiber Optic premises cabling testing. Additionally, these adapters include an integrated VFL to provide a quick indication of a break in the fiber, as well as an integrated copper connection port for measuring electrical voltage for hybrid powered fiber applications in support of smart building initiatives.