Fiber Optic Standards and Regulations Flashcards
6 cards from real CFOT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Fiber Optic Standards and Regulations flashcards as text
The National Electrical Code (NEC) Article 770 specifically regulates which aspect of fiber optics?
Answer: Installation of optical fiber cables in buildings
NEC Article 770 covers the safe installation of optical fiber cables, including fire-resistance ratings and routing within buildings.
What does the 'OM' classification system define for multimode fiber?
Answer: Optical Multimode performance categories from OM1 to OM5
The OM classification (OM1–OM5) defines multimode fiber performance tiers based on bandwidth and supported transmission distances.
Which standard defines the OS1 and OS2 categories for single-mode optical fiber?
Answer: ISO/IEC 11801
ISO/IEC 11801 defines OS1 and OS2 as performance categories for single-mode fiber used in premises and outside plant applications.
What is the minimum bend radius typically specified by TIA-568 for a 2mm fiber optic patch cord under load?
Answer: 25 mm
TIA-568 specifies a minimum bend radius of 25 mm (about 1 inch) for 2mm fiber optic patch cords under tension.
Under NEC Article 770, which cable jacket rating is required for fiber optic cables installed in plenums?
Answer: OFNP (Optical Fiber Nonconductive Plenum)
OFNP-rated cables have low-smoke, low-flame jackets required by the NEC for installation in air-handling plenum spaces.
Which TIA standard specifically addresses OTDR measurements for single-mode fiber cable plants?
Answer: ANSI/TIA-526-7
ANSI/TIA-526-7 defines OTDR measurement methods for installed single-mode fiber optic cable plants.