Components
6
Fan RPM Sensors
Each ventilation fan has an internal RPM sensor. The fans fail if they do not revolve at
least 1,000 RPM. This information is then reported to and displayed on the VFC-3000
controller/Vanguard
®
Field Controller.
Beacon(s)
Beacons are turned on and off independently from the rest of the sign by the VCB.
Beacons are used at the customer’s discretion.
Traffic Cabinet
Cabinet Light
The traffic cabinet is equipped with an LED light and sensor. The door sensor, located at
the top of the traffic cabinet door opening, activates the light when the cabinet door
opens. The light is activated when the door opens.
Door Reporting
The door sensor, located at the top of the traffic cabinet door opening, can report
whether the door(s) are open or shut. This information is reported to the controller.
Pull-Out Drawers and Shelving
Traffic cabinets contain a pull-out drawer and several support shelves. The shelves hold
components such as the controller, the communication device, or a laptop computer.
The pull-out drawer is often used for storage of extra supplies such as screws,
screwdrivers, or other hardware, and for the display and controller manuals. The pull-out
drawer also can be used as a temporary location for a laptop computer.
Panelboard
The panelboard is equipped with breakers that control power to lights, heaters, and
other power circuits.
Outlet Strip and Outlets
The GFCI and utility outlet are located next to the panelboard. The GFCI outlet is for
service personnel only. Do not use the GFCI outlet for control equipment.
The outlet strip offers several outlets for plugging in control equipment.
Exhaust Fan Assembly
The exhaust fan assembly is located at the top of the traffic cabinet and includes the
exhaust fan and a thermostat. The fan and thermostat keep internal components and
the interior of the traffic cabinet cool.
Cabinet Heater
The heater fan is located at the bottom of the traffic cabinet. The fan, thermostat, and
heater regulate the temperature within the traffic cabinet, ensuring internal components
operate at ideal temperatures.
UPS
A UPS contains batteries and an inverter. If the utility AC power fails, the UPS powers the
controller and communication equipment for a limited amount of time.