Facility code is also called as Site code, is a specific code that restricts or isolates other systems that might have a similar range of Badge ID’s access to specific site. Consider the two sites belonging to same facility, and as a general standard, cards can be of any format but bit width is limited to


REQUEST TO EXIT ( R.E.T / R.EX)The basic purpose of the access control is to secure the site. The types of access control varies from site to site as required, some sites are justan entry-exit control while as others can be entry, exit and monitor. Sometimes called as R.EX, alternately R.T.E is the signal that informs

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Anti-Pass back is also called as re-tracking. In simple way, it is one entry and one exit for one individual. It is a security mechanism that helps in preventing the misuse of access key. In case an individual gains access to the site using a specific access key then this key should not be passed to be

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Stainless steel is an alloy of chromium and nickel. Sometimes, it is referred as SUS, an acronym from the Japanese Industrial Standards (JIS). Generally SUS is Steel Use Stainless. Also known as A2 steel, 304 stainless steel has excellent resistance to a wide range of atmospheric environments and many corrosive media. It is subject to pitting and

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The Wiegand is the general communication protocol widely used in access controls to connect the device with device e.g. Reader with Access Control Panel as the data signals are communicated between the devices. It has become the defacto protocol for communication & most of the readers are with this protocol to make communication easy and universal. In

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The original patent of Wiegand was first awarded by United States Patent & Trademark office in 1974 on June 25, 1974 for its inventor John Richard Wiegand. Wiegand effect, named owing to its Inventor, a German scientist John Richard Wiegand. The Wiegand effect is the non linear magnetic effect produced in specially hardened and annealed (heat treated)


Anti pass-back Where the turnstile provides a return signal to the Access Control System to signal that user A has entered or exited the building. If user A then passes his proximity card to user B the access control system will know that this entry is potentially fraudulent and prevent access/egress. Anti-piggybacking Where methods have

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