Schlage 788/798 Series heavy-duty armored door cords provide a simple and economic solution for transferring power from frame to door. Used when installing electric exit devices or electrified locks, armored door cords provide a simple and economical solution for transferring power from frame to door. Schlage flexible door cords are offered in two lengths each with options for less wires or including four, 20 gauge conductor wires (red, green, white and black). For 90° swinging doors only.