A 500-foot (152.4 m) spool of one or two-pair, low-voltage cable. 1-Pair Relay Cable: Connects an electric/magnetic lock to an Access Hub 2-Pair Relay Cable: Connects an electric/magnetic lock and door position sensor to an Access Hub 1-Pair Relay Cable: (2) 18 AWG conductors for an electric/magnetic lock 2-Pair Relay Cable: (2) 18 AWG conductors for an electric/magnetic lock (2) 22 AWG conductors for a door position sensor Cable length 152.4 m - UACC-CABLE-DOORLOCKRELAY-2P