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Before we move on to the more advanced types of systems that you can get from a good Memphis 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 Memphis 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 Memphis 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.

Many advantages can be enjoyed, when you choose a reliable and reputed Memphis access control systems company. For instance, many of these companies also provide end to end security solutions like perimeter security, CCTV surveillance solutions and also install, operate and maintain the computers and software required for the control of security systems. Rather than choose a company that only provides these systems, if you choose a company that provides other security solutions also; it might be easier for you to co-ordinate all your security needs through one company.