Chapter 1: Access Control System Architecture

Access control system overview showing head-end equipment, server, and door zones for entrances, production areas, control rooms, and fence gates

Standard access control drawing symbol legend with descriptions and wiring specification notes for use in architectural, mechanical, electrical, and security drawings

Ten-row comparison table of Wiegand legacy protocol versus OSDP v2 open supervised device protocol across communication, encryption, tamper detection, cable type, and more

Voltage drop reference table for 12 VDC lock power wiring across four wire gauges and four load currents, with formula and worked example

Sample facility floor plan divided into five access control zones with card readers, card plus PIN readers, and a dual-authentication biometric plus card reader

Multifamily residential access control diagram showing main entry video intercom, residential unit smart locks, floor-restricted elevator access, roof deck, parking garage, and emergency exits

Industrial facility access control diagram covering main entrance, NOC and control rooms, restricted access areas, roof access, loading bay, and intercom badge reader with vehicle registry

Retail store access control diagram with store layout, access control panel, network video recorder, manager