1, Use for access controller of double-door 2, Be installed on ... 3, OEM Overall Characteristc• The product use with access controller ,to be installed on glass doors ,wooden doors, ... places with surge receiver ,actuation on electricity.Use for access controller of double-door.A. 12VDC Input:Required power ... 12VDC power source to white wire.Check jumper for 12VDC operation.B. 24VDC Input:Require power 0 ...