Each PXL-500 is shipped with an installation kit including all necessary terminal blocks and transorbs. One of these terminal blocks has a jumper across pins 1 and 2. This terminal block is designated for use on TB-4.
If a door switch is not used on the controller, this jumper prevents a continuous door open status alarm from being received by the controller. If a door switch is used, simply remove this jumper and install the door switch leads.
Note: A Door Switch must be installed on any door to which anti-passback is being applied for proper tracking of the anti-passback feature in the Doors program.
Open door to open circuit and activate door switch input