Why implement an Access Control System?

• Provide “Controlled Access” to the facility
• Allow access only to authorized personnel
• Implement a ‘Security Protocol & Policy’ to make employees, visitors, and the facility safe
• Implement a security and access level hierarchy based on personnel function
• Automate and enhance the identification process
• Automate personnel tracking
• Minimize human error
• Track outside contractors and vendors
• Record and generate reports of access for each area

Automated Access Control Advantage

• Eliminate the need to man all access points
• Take full, and orderly control of your site
• Improve security measures and provide convenient access for authorized personnel
• Improve response to emergencies
• Ability to lock down entire areas quickly at high threat levels
• Track personnel movement and access
• Establish and enforce one set of access rules
• Eliminate the “buddy” system
• Provide safety for visitors and employees
• Archive records for potential future use

RS-485 is differential multi-drop bus. Only data and ground lines connect to all devices. In the figure below, only data lines are shown, however there is a third wire for ground.

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