Termination cabinets are constructed to meet UL Type 1, NEMA Type 3R and UL 1773 standards (UL 1773 is the standard for termination boxes). The most common construction materials are: ● Aluminium. ●. Fundamental Distinction: Terminal boxes utilize structured terminal blocks for organized, accessible connections and frequent maintenance, whereas junction boxes protect permanent wire splices and are rarely accessed after installation. Code Compliance: Both enclosures must adhere to NEC Article. Safely conduct, connect and distribute energy in hazardous areas with R. We offer bespoke, custom-made terminal boxes and terminal box combinations, as well as standard products with short delivery times. Our products are certified for installation technologies all over the. Pepperl+Fuchs offers a comprehensive range of terminal boxes and junction boxes in types of protection Ex e (increased safety), Ex ia (intrinsic safety), Ex tb (dust protection by enclosure), and Ex op pr (protected optical radiation). From industrial standard to explosion-proof enclosures (Ex enclosures), with a wide range of accessories, we enable you to configurate your individual terminal enclosure according to your requirements. We would be. Fiber Optic Distribution Box (FDB) / Fiber access terminal box (FAT) / optical termination box (OTB) / Fiber termination box (FTB) / Optical Distribution box (ODB) are a compact fiber management box used for FTTH application. Let's walk through what they do, where they live, how they differ from other.