170 Controller Modules

170 Controller Modules expand the performance and versatility of McCain 170 Controllers. Through various combinations of the Caltrans TEES-compliant 170 modules and controller software, users can configure 170 Controllers to support a variety of applications beyond just intersection control, such as ramp metering, variable message signs, and lane control.


  • Upgrade or repair 170 controllers
  • Install quickly and easily in the field
  • Endure harsh environments
  • Utilize with any McCain 170 Controller

CPU Modules

68HC11 CPU Board

  • Enhance memory and computing power
  • 68HC11F1 Microprocessor
  • 32 or 128 KB EPROM
  • 32 KB non-volatile SRAM

Communication Modules

Ethernet Module

  • Model 400 modem footprint
  • Direct IP addressing
  • Auto-sensing 10 Base-T or 100 Base-T

PROM Modules

412C PROM Module

  • Jumper-selectable configurations of SRAM, EPROM, and non-volatile RAM
  • 2 banks of switches on front panel
  • Real-time clock adjuster (RTCA)

412F PROM Module

  • Used in lieu of 412A, 412B, or 412D
  • Switch selectable between 6802 and HC11 CPUs