FEATURES:

• Red, Yellow, Green, and Walk indicators
• Upgradable via front panel-mounted serial port
• Digital Signal Processor (DSP) provides:
• Accurate measurement of AC RMS voltages
• Sampling speed in excess of 200 samples per line cycle
• Free RaeComM monitor management software
• Event logging:
  • Time change log
  • MMU reset log
  • Configuration log
  • Prior faults log
  • AC line log
  • Signal sequence log
  • Flashing "Don't Walk" monitor

The Model MMU-1600 Malfunction Management Unit (MMU) is a full-featured unit that monitors up to 16 traffic signal channels for conflicting inputs, improper sequencing, incorrect timing, and invalid signal voltage levels. The MMU-1600 is fully compliant with NEMA Standard TS2-1998. The MMU-1600 can operate in either Type 16-mode (16 channels) or Type-12 mode (12 channels). When configured to operate in Type-12 mode, the unit is downward-compatible with the NEMA TS1 Standard.