357i ATC Cabinet

357i ATC Cabinets combine the best of rack mount and serial-based designs to meet the needs of today’s LED intersections. Using smarter, high-density components, the cabinet offers unparalleled control capabilities for intersections that would otherwise require unorthodox wiring or even a second cabinet. Users rave about the drastically reduced assembly size that leaves ample room for auxiliary equipment, such as video detection and battery backup systems. With the most sold in the industry, our proven ATC Cabinets meet the needs of today’s smart cities and are ready for tomorrow’s challenges, including the future of connected and autonomous vehicles.


  • Manage up to 16 detector inputs and 8-channel outputs
  • Safeguards against accidental shock from inadvertent contact with high voltages
  • Complies with leading standards on electrical safety, including NEC and NFPA 70E
  • Allows pole or pedestal mount due to compact, lightweight design
  • Ability to upgrade existing installations - matches 337 cabinet footprints
  • Boosts driver safety with dark approach detection and continuous flasher monitoring
  • Connected vehicle ready

Standard Features

  • Field output termination assembly provides removable contact blocks for easy connections to field signal wires, sockets for flash transfer relays (FTRs), and flash program blocks (FPBs) for output channels
  • All channels are flashable and programmable
  • FPBs control and select the color (red, yellow, or dark) during flash
  • Hermetically sealed high-density FTR features an LED indicator to visually confirm relay is operational and contacts have transferred
  • Interior LED cabinet lights (2), front and back
  • Model 2202 dual flasher/switch pack combination
  • Exterior is continuously welded


  • Combo I/O assembly with 4 fixed input slots and 4 fixed output slots
  • 2 or 4-channel industry standard detection modules
  • 32-channel CMU
  • CMU auxilliary display unit
  • Model 2216-24 cabinet power supply
  • Service assembly with clean AC and DC power
  • Police panel with On/Off, MCE, Auto/Flash, and Interval Advance push button cable

General Specifications

Dimensions 36” H x 21” W x 18” D
Material 5052-H32 aluminum, 0.125” thick
Finish Natural, anodized, or powder coated
Door(s) Front (1), back (1), both full size
Latching System 3-point, choice of Corbin or Best locks
Handles 3/4” round, stainless steel with padlock hasp
Door Stops 90° (±10°), each door, top 90° and 180° (±10°), each door, bottom
Rack Assembly 19” EIA rack
Ventilation Thermostatically controlled 100 CFM fan, Louvered air intake in door, pleated filter
Mounting Pole or pedestal mounted
Weight 108 lbs without plug-ins or controller(s)