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Sistemi Elettronici
di Apertura Porte e Cancelli
International registered trademark n. 804888
®
3) BASIC WIRINGS OF AN INTER-LOCK SYSTEM USING TWO KEYPADS
An inter-lock system needs two door controllers. This application example uses two keypads with simple cross wire connection on
their "Output 1 Inhibit" and "Inter-lock Control Output" terminals. It is necessary to link up the “(-) GND" terminals of the two
keypads as common ground to achieve the inter-lock logical functions.
• Use keypad to open the door from outside
• Press egress button to open the door from inside
• Connect the door magnetic sensors on the doors to monitor their positions
• While door 1 is open, then, door 2 is forced to keep close, or vice versa
• Use N.O. Relay output for fail-secure lock; and N.C. output for fail-safe lock
• Please also see the "NOTE" stated in the Application Example (1)
52 Rev. 01 - 05/201167411245
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