Door entry systems regulate passage in and out of an area.
The standard lock and key is a form of access control, but door access control systems have become sophisticated with time. Today, apartment building door entry systems are computer-based where all doors are managed from a central location. These keyless door entry systems use special access cards instead of a brass key to allow access into or out of a room. When the wireless door entry systems are connected the right way, the system runs swift with the security manager or the homeowner being able to restrict or grant access to different parties.
Keyless door entry systems can be used to control access into given rooms in a building – access can be given to specific electronic cards and not to others.
In its basicity, wireless door entry systems provide quick access to people with authorization and restrict access to unauthorized personnel.
What makes up Door Entry Systems?
There are wide varieties of door access systems, with each type varying in complexity from the other. In most cases, however, apartment building door entry systems have some basic similar components.
Access cards act as electronic keys to doors. You use them to gain access to a door that has been secured with wireless door entry systems. Unlike keys to a common lock, which are all the same, the cards are coded in a unique way. These cards are the same size as credit and debit cards, making them easy to carry and easy to swipe on the door.
True to the name, card readers are the devices used to read the details on a card electronically. These card readers may either be of insertion type where you insert the access cards just like in an ATM, or they may be proximity type where the card is placed a few inches from the reader and the door opens. For proximity readers, the reader is placed on an exterior or unguarded side of the door.
In place of card readers, keypads may be used as apartment building door entry systems. The keypad has numeric pads just like those on a telephone. To gain access, a person is required to enter the correct code. These keypads might be used in addition to card readers to make comprehensive and more secure keyless door entry systems. In such a combo, the correct code and an authorized card must be presented for the door to open.
Electric Lock Hardware in Wireless Door Entry Systems
The electric lock hardware of a door is the device that electronically locks and unlocks a door. This lock is controlled by keyless door entry systems. There are different types of locks including electric locks, electromagnetic locks, electric strikes, and electric exit devices among others. The type of hardware used and its installation on a door is determined by the construction conditions of a door.
The electric lock hardware controls entrance in secured places, but to comply with building and fire codes, the hardware will not restrict exit from a building.
These are also referred to as ‘intelligent controllers’. The panels are installed in one location where wireless door entry systems are to be provided. All other devices including card readers and electric lock hardware are connected to the field panels. These panels then process all activities involving access control at the building level. The number of doors that need control determines the number of door entry systems field patterns. These panels are normally installed in electrical, telephone, or communication closets.
Biometric Systems for Wireless Door Entry Systems
These systems are reliant on the physical characteristics of the users. They use fingerprints or retinal scans. These have been deemed the most secure access control methods. On the flipside, they are relatively expensive to install and some users find them invasive. Early models of these apartment building door entry systems were unreliable outdoors, and as such, they were only used interiorly.
The Server Computer for Keyless Door Entry Systems
A server computer acts as the brain controlling the whole access control system. This computer is the central database and also the file manager for the access control system. It records activities and distributes information. In most cases, a single door entry system server will manage a large number of doors controlled by card readers.
The door entry systems server computer is a standard computer on which a special program has been installed. This computer is dedicated full time for the access control system.
Access Control Setup and Use
Door entry systems are flexible in how they are customized and how different privileges are assigned to different cards. Once the different components are purchased and installed, the system can be tailored to allow or restrict access to specific doors for specific cards. Other aspects that can be controlled include:
- Time of the day a card access the door. It can be 24 hours or specific periods of the day.
- Day of the week. The system can restrict access on weekends and holidays.
- Start and end dates. The security chief or the house owner can allow cards to access doors for certain defined ranges within years or years.
To make easier for the person seated behind the server computer, apartment building door entry systems software allow users to create ‘clearance codes’. These codes bear pre-defined privileges and they are given names. This means that all individuals with a given clearance code will enjoy the same privileges.
Door Entry Systems Operation
After the access control system has been installed, all individuals who needs access will need to use their cards or any other entry device. When a user enters their card into the card reader, the reader will pick the information on the card and send its identity to the field panel. The field panel will then verify the card and then send a signal to have the door unlocked. The time taken between entering the card and unlocking the door is usually a second. The field panel will send the door access information to the server computer for storage. This information will include the name of the card holder, the door accessed, time and date of access.
If a user tries to access the wrong door or the right door at the wrong time, access will not be granted. In such a case, information will still be sent to the server computer.
Door Status Monitoring for Apartment Building Door Entry Systems
Keyless door entry systems work successfully when card reader controlled doors are used purposed. To ensure the door entry systems are not misused, a door status monitoring feature is installed on each door. This features has two functions:
- Monitor when the door has been forced open. This is normally when a door with a card reader is opened without insertion of a valid card. In such a case, a ‘door forced open’. DFO, status will be shown.
- Monitor doors that have been open for too long. In case a card reader controlled door is left open for more than the pre-defined period, the system will switch to ‘door open too long’, OTL, status.
In both cases, DFO and OTL, the system will sound an audible alarm in the administration building. The records will show the door with the DFO or OTL status. The access control server can define the time period for which the wireless door entry systems can be on DFO or OTL without sounding an alarm.
Automatic Unlock Feature for Keyless Door Entry Systems
If need be, apartment building door entry systems allow doors to automatically open at pre-defined times. When a door has been automatically unlocked, an access card or any other entry device is not needed to open it. This unlocking feature is activated at the server computer, each door at a time. When setting the time for the door entry systems unlock, users also set the time for the relock. When a door has been unlocked automatically, DFO and OTL statuses are deactivated.
Wireless door entry systems will record or transactions occurring on a door on the hard disk of the server computer. All stored transactions form the ‘system journal’. Some of the transactions on keyless door entry systems include:
- Valid access
- Invalid access
- Door forced open, DFO
- Door open too long, OTL
- Equipment failure
- Power failureThe journal on the apartment building door entry systems will keep months of data based on the volume of activity and hard disk size. Reports are created from all transactions stored in the journal.
Buying Door Entry Systems Components