Access Control

Meeting Your Needs by Exceeding the Standards

Any areas that need to be secured with authorized access control, a fingerprint reader, swipe card, or keypad access system is something to consider. Door access control systems can all operate doors, gates, barriers and turnstiles. Versa-Tel  supplies and installs all types of door access control systems that give you total protection for your staff, your property or your assets.

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Access control system operation When a credential is presented to a reader, the reader sends the credential’s information, usually a number, to a control panel, a highly reliable processor. The control panel compares the credential’s number to an access control list, grants or denies the presented request, and sends a transaction log to a database. When access is denied based on the access control list, the door remains locked. If there is a match between the credential and the access control list, the control panel operates a relay that in turn unlocks the door.

The control panel also ignores a door open signal to prevent an alarm. Often the reader provides feedback, such as a flashing red LED for an access denied and a flashing green LED for an access granted Access Control System An access control point, which can be a door, turnstile, parking gate, elevator, or other physical barrier, where granting access can be electronically controlled. Typically, the access point is a door. An electronic access control door can contain several elements. At its most basic, there is a stand-alone electric lock.