How to share one lock for two controllers (indoor and outdoor installed respectively)?
Serial NO. : H00117017-EN
Date of Editing : 2015-07-22
Questions : How to share one lock for two controllers (indoor and outdoor installed respectively)?
Problem Solving :
1. Connect with Fail-Safe Locks
※Two controllers should connect together via N.C. in series connection. Normally the contact is closed and in a conductive sate. When any card presented on either controller, the relay’s contact switches to open and will release the door lock.
2. Connect with Fail-Secure Locks
※Two controllers should connect together via N.O. in parallel circuits. Normally the contact is open. When any card presented on either controller, the relay’s contact switches to close and will release the lock
