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Before we move on to the more advanced types of systems that you can get from a good Raleigh access control systems company, it will help to know what exactly these systems involve. Did you know that even the PIN that you enter at the ATM to access your account and withdraw cash is a form of control system? Any device, physical or electronic, that is used to prevent unauthorized entry into a real or virtual zone, is considered as such a system. The lock on your home door, the electronic lock and physical locks that guard the bank vault, the fingerprint reader that controls entry into sensitive areas in a lab, these are all examples of such systems.

An important term you will have to be familiar with when you are dealing with a Raleigh access control systems company is the phrase ‘access control topology’. In these systems, a credential has to be presented to the reader and this has to be accepted by the main controller to ensure access. The means through which the credentials are compared against a pre-programmed list is called the topology of the system. There are many kinds of system topologies, the most common of which is the “serial” type of topology. The communications between the look up and the control functions are connected serially.

If you require a system with networking capabilities too, then a Raleigh access control systems company can also give you a solution through a system topology that consists of serial controllers with terminal servers. This type of system allows you the advantage of being able to use existing networking infrastructure to connect separate segments of your access control system. This provides one with a good solution where installation of a separate RS-485 cable for a system would be difficult or even impossible. The only problem with such a topology for your system is the increased complexity involved.

Choosing right, when it comes to Raleigh access control systems contractors, can give you a lot of peace of mind about the safety and security of your home and business. This is why it is important to put a little effort into verifying the credibility of the company you are choosing. Do not take the risk of choosing a company just because their quote is the cheapest, you must first analyze why the service is being offered at a lower rate and what the quality of the service/product offered to you is. It is wise, never to take a chance when it is a question of security; as the old adage states “better safe than sorry”!