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Access Control

Access Control Systems are designed to allow organisations to control and restrict personnel access to doors, lifts, gates and barrier arms within a property. They are also used to log and monitor the activity of staff and are able to trace personnel movements within a building.
Systems can vary in size and complexity from single door systems to large complex systems which can control numerous doors and access points, and staff in multiple buildings from one central location.
Access Control Systems require some form of identification to permit access. This can be achieved either by PIN number, swipe card, proximity card/fob (tag), or using biometric scans such as finger-print, or retina scan.
Access Control systems are more secure than lock and key; should a staff member lose their access card, programming changes can be made to remove it from the system - as opposed to the expense of involving a locksmith should a master key be lost.
Locks and Automation Devices
Electronic locks such as Magnetic locks, Mortice locks, Drop-bolts and Strikes are installed on doors and are wired directly to the control equipment.
When access (or egress) is granted, the controller signals to the lock to release. Other automated devices such as barrier arms, turnstiles and bollards can also be connected in the same way to achieve the same result.
Recognition Devices
Readers provide a means of scanning and sending the data back to the control equipment for processing.
There are many types of readers including PIN, proximity card or fob (tag), swipe card, or biometric scanners such as fingerprint, retina or voice recognition.
Some readers have dual functions such as 'card and pin'. The readers are installed in the non-secure area, restricting access to the secure area. Some applications may require readers on both sides of the door, either for additional security or to monitor the movements of personnel more closely.
The Control equipment is where the information is received, processed and actioned. Many Access Control Systems have just one main controller with a varying number of sub-controllers. The sub controllers can usually operate in 'stand-alone' mode, allowing the system to function normally if communications are lost with the main controller. i.e. if the main controller temporarily fails, users are still able to access doors.
All of the peripheral equipment such as locks, readers and egress devices are wired to the controllers. Communication mediums such as Ethernet and phone lines are connected and processed at the main controller.
User Management
Many Access Control Systems have the capability of managing in excess of 50,000 users per system.
Users or cardholders are programmed with access levels and time zones which means each user can have their own personalised access rights, defining which doors they can access and at what time. This means that a more senior member of staff can access all doors 24 hours a day, 7 days a week, and a less senior staff member has restricted access during business hours only.
Door Monitoring
Access Control Systems can be used to monitor the status of the door, such as Locked, Open, Forced, or Door Open Too Long (DOTL).
This monitoring can be used to alert the 24 hour monitoring station if the door is forced (opened without the recognition of a valid user or REX), or held open for longer than its pre-determined open time. Door monitoring can also be used when systems are integrated to Alarm Systems to restrict arming of the system until the door is in a locked state.
System Integration
Many of the advanced Access Control Systems are combined with Alarm Systems which allow even more flexibility and security.
This allows the combined Alarm/Access Control System to be managed using the same platform. Also, doors can be assigned to areas of the alarm, inhibiting access if the system is armed.
Access Control Systems can also be integrated into CCTV systems and can give commands to Cameras and DVR's (Digital Video Recorder's) to zoom in on a door an speed up the recording rate if a door is opened, forced or held open for longer than its pre-determined time.
Eastek Ltd can also link your system to a fire alarm, commanding main doors to unlock, or smoke-stop doors to close if the fire alarm was activated.