Viavi JDSU NGC_AD_EF_MM1 Certifier Multimode Fiber Adapters EF Compl 850 1300 nm

The Viavi NGC_AD_EF_MM1 (MMEF-C637) is an EF-compliant multimode fiber test adapter module for the NGC-4500 Certifier40G, enabling Tier 1 fiber certification at 850 nm and 1300 nm.

• EF (Encircled Flux) compliant — meets IEC 61280-4-1 and TIA-526-14C launch conditions

• Tests insertion loss, length, and polarity at dual wavelengths (850 nm & 1300 nm)

• Compatible with NGC-4500 Certifier40G for complete copper and fiber network certification