System, Multipurpose Network : A type of multipurpose system utilizing a common piping system supplying domestic fixtures and fire sprinklers where each sprinkler is supplied by a minimum of three separate paths
NFPA 13D Standard for the Installation of Sprinkler Systems in One and Two-Family Dwellings and Manufactured Homes, 2002 ed. http://pozhproekt.ru/nsis/nfpa/NFPA13D-2007.pdf, (Std: Instll of Sprnk Sys in One and Two-Family Dwellings and Manufactured Homes - Amer) {179 NFC}