Most of the newer alarms and keyless entries on the market today have both positive and negative 200 ma door lock outputs that are usually capable of activating the factory relays.
Door lock system diagram.
Parts of a door and door frame.
While we don t include locks you can read all about the different types of door locks here.
Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system.
Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system.
Should you need to add relays for a 3 wire negative type b door lock system use the diagram below.
Multi point locking system type of front door lock back door lock.
When the lock is engaged multiple bolts will engage into the door frame usually with a minimum of 3 points and sometimes 4 or 5 points.
A door whether a front door or interior door of a home is a complicated component to the home as you ll see in our various parts of a door diagrams below which includes illustrations of a door door frame hinge and knob.