The West Penn 2PR485DB is a 2 Pair 22AWG, 7x30 Tinned Copper, Shielded (100% Aluminum Foil + 65% Tinned Braid), Indoor and Outdoor CM Rated, Oil Resistant Direct Burial Serial Data Cable, 1000 foot reel in black.
This cable has Advanced Functionality with Open Supervised Device Protocol (OSDP) . OSDP improves interoperability and increases security over standard Weigand systems.