Chapter 1: BACnet/IP Protocol: Building System Architecture

Detailed converged building systems wiring diagram with IP, Ethernet, and RS-485 legend across building management HVAC, security, life safety, digital video, and energy subsystems

VAV zone control diagram showing zone sensor, zone setpoint and demand blocks, flow control damper actuator, VAV box, hydronic reheat coil with hot water valve, and BACnet MS/TP network controller

VAV box cutaway diagram showing box controller, damper control signal, airflow sensor, hydronic reheat coil with hot water supply and return, and zone temperature sensor serving a moderate-load office

Fire detector placement floor plan showing detector locations in offices, closet, hallways, restrooms, and workshop areas of an office facility

Access control system diagram showing a door with magnetic lock, exit button, access control panel, electronic keypad, and power supply outlet

Side-by-side illustration comparing an electric door strike mounted in a door frame and a magnetic door lock mounted above a door with electromagnet and armature plate

Network camera integration diagram showing existing network cameras and other cameras integrating through hybrid and cloud paths to an on-prem edge server and a laptop management interface

Surveillance camera placement floor plan showing camera coverage cones across laboratories, concert hall, main hall, dining room, stairs, director

IP surveillance system architecture diagram showing power supply, outdoor and indoor cameras, network switch, IP video recorder with HDD storage, router, monitor, and smartphone remote access

Simplified IP surveillance system reference diagram showing power supply, outdoor and indoor cameras, switch, IP video recorder with HDD, router, monitor, and smartphone

Camera lens field of view comparison chart showing overlapping coverage cones for 2.8mm, 4mm, 6mm, 8mm, and 12mm lenses plotted against distance from lens in meters

Video intercom system components diagram showing doorphone outdoor panel, intercom control unit, monitor, electronic lock, and exit button

Network cabling socket floor plan with dimensioned offices, storage, and break room showing wall-mounted network socket locations and a legend

TIA-568 channel and permanent link model diagram showing telecom room patch panel and switch, horizontal cable permanent link, work area outlet, and PC or PoE device with distance limits

IEEE 802.3 power over ethernet classes reference table showing Type 1 through Type 4, IEEE standard, PSE and PD max power, pair usage, minimum cable requirement, and typical loads for each class

Low-voltage control panel wiring closeup showing a BMAS controller, network switch, terminal blocks, spare capacity section, and BACnet MS/TP field wiring labeled Corporate VLANs and BMAS Network

Simple airside economizer airflow diagram showing outdoor air and return air dampers blending into mixed air through heating and cooling and a fan into supply air

Airside economizer schematic with economizer controller and temperature and humidity sensors on outdoor air and return air streams driving damper commands to cooling coil, heating coil, and fan