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All you need to know about CCTV & Access control - Hashan Kodituwakku

Updated: Sep 14, 2020

One of the major use of this IT service is that it allows to keep a track of users in any organizations. CCTV empowers checking and recording of determined regions to help ensure against wrongdoing and false obligation claims. When a credential is presented to a reader, the reader sends that information to a highly reliable processor. After that, those credentials are being compared with an access control lists after which the presented request is either granted or denied. At last, the decision is sent to a database via transaction log.


On the basis of access control list, the door remains locked it the access is denied. If not, then the control panel operates a relay that in turn unlocks the door. The door open signal can also be denied to prevent an alarm. Often there is a feedback from reader where either a flashing red LED is displayed for an access denied or a flashing green LED for an access granted.


Above described illustration referred to single factor transaction. We can also use two-factor authentication. In this kind of two factor transaction. In order to grant the access , the presented credential and a second factor are required. The another factor can be anything such as PIN, operator intervention , biometric input or even a second credential.


Following are the three types of authenticating information.


  • Something that user knows ; eg a password, pass-phrase or PIN.

  • Something the user has , such as smart card or a key fob.

  • Something the user is , such as fingerprint, verified by biometric measurement.

Access control topology


Access control choices are made by contrasting the credentials with an access control list. This gaze upward should be possible by a host or server, by an entrance control board, or by a reader. The improvement of access control frameworks seem an unfaltering push of the gaze upward out from a local host to the edge of the framework, or a reader. The predominant topology circa 2009 is hub and spoke with a control panel as the hub, and the readers as the spokes.  Control panel handles the look-up and control functions. The spokes convey through a sequential association; as a rule RS-485. A few produces are pushing the basic leadership to the edge by setting a controller at the door. The controllers are IP enabled, and interface with a host and database utilizing standard networks.

Access control system components


An access control point can be an entryway, gate, stopping door, lift, or other physical obstruction, where giving access can be electronically controlled. Ordinally, the passage is an entryway. An electronic access control entryway can contain a few components. At its most essential, there is an independent electric bolt. The bolt is opened by an administrator with a switch.


To mechanize this, administrator mediation is supplanted by a peruser. The peruser could be where a code is entered, it could be a card peruser, or it could be a biometric peruser. Perusers don't for the most part settle on an entrance choice, yet send a card number to an entrance control board that confirms the number against an entrance list. To screen the entryway position an attractive entryway switch can be utilized. In idea, the entryway switch isn't not at all like those on fridges or vehicle entryways. For the most part just passage is controlled, and exit is uncontrolled. In situations where exit is likewise controlled, a second peruser is utilized on the contrary side of the entryway. In situations where exit isn't controlled, free leave, a gadget called a demand to-leave (REX) is utilized. Demand to-leave gadgets can be a push-catch or a movement identifier. At the point when the catch is pushed, or the movement identifier distinguishes movement at the entryway, the entryway caution is briefly overlooked while the entryway is opened.


Leaving an entryway without having to electrically open the entryway is called mechanical free departure. This is an imperative wellbeing highlight. In situations where the bolt should be electrically opened on leave, the demand to-leave gadget additionally opens the entryway.


CCTV empowers checking and recording of determined regions to help ensure against wrongdoing and false obligation claims. We install watchful outside cameras for the home, static and completely practical cameras for business and business applications.

Author : 

Hashan Kodituwakku, Director of IT at Intuition Consultancies Inc, an IT support services and technologies company, provides CCTV & access control services which is highly important factor when a selective restriction of access is given to a place or other resource. He has over 25 years of industrial experience in IT services and security organizations. He also has an excellent track record of delivering and managing Software / Infrastructure / Physical Security Systems projects.


#BusinessStrategy #HintsampTips #hashanKodituwakku #CCTVandAccessControl

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