Changeable Message Signs

McCain’s Changeable Message Signs (CMS) provide advisory information to en-route motorists, such as Amber Alerts, accidents, events, construction, estimated travel times, and road closures. Manufactured to McCain’s high quality standards, these durable signs make a functional and aesthetically pleasing addition to any roadway. Designed to meet Caltrans specifications and available in a variety of sizes to meet your needs, CMS signs can help reduce traffic delays by keeping motorists informed of road conditions and closures so they may alter their routes accordingly.


  • Meet all Caltrans TEES Chapter 8 Specifications
  • Modules are fully interchangeable without switch or jumper settings facilitating quick and efficient service or repair
  • Solid, external matrix module covers (1 hole for each cluster) reduce glare and provide increased message contrast and visibility
  • Standard assemblies assure interchangeability of components
  • Advanced LED pixel matrix module design
  • Three Caltrans configurations available (500, 510, and 520) to meet your needs

Standard Features

  • LED’s mounted on circuit boards (LED pixel type 2)
  • Operates with a 170E controller, CIA and PDA-3
  • Z-bar mounting brackets on rear
  • All exterior seams continuous welded
  • Operates with Sign View software available from Caltrans
  • Can withstand temperatures ranging from -37° C to 74° C and humidity from 0 to 95% (non-condensing)

General Specifications

Dimensions M
Display Dimensions 32 pixels high x 48 pixels wide
Enclosure Material: 5052-H32 aluminum
Finish: Display face is black, rest of face is retroreflective material
Access Front
Display Technology RGB LED with SWARCO 3G6 and 3G7 lens
Pixel Size & Spacing 20 mm
Pixel Inclination

3G6 optics ± 15.5°

3G7 optics ± 31°

"SPEED LIMIT" FHWA series E, 8" UC
Display Font McCain MUTCS Series "E"
Character Height 18" ir 22"
Power 120 VAC supply
Typical Power


Max Power



Operating Temperature: -37° C to +74° C
Humidity: 0 to 95% (non-condensing)


197 lbs