Malfunction Management Unit – SG-1000

Peek Traffic sets the new standard for NEMA Conflict Voltage Monitors and NEMA Malfunction Management Units with the Peek SG-1000 Series Monitors. 

The Peek SG-1000 Series Monitors offer an improved display for the dynamic status display of each input on each channel. 


  • Supports Flashing Yellow Arrow per ammendment 4 of NEMA TS2-2003 
  • Exceeds both NEMA TS1-1989 functional and environmental requirements for a conflict monitor and NEMA TS2-2003 for functional and environmental requirements for an MMU. USB port is an industry 1st. 
  • The large keyboard reduces menu steps and complexity in the data entry system and eliminates the clutter and confusion of multiple dip switches. 
  • Records high and low voltage conditions. Initially brought in Double Diamond, continued in SG-1000 
  • Voltage measurement and display of all signal indicators for each channel and color input for TS1/TS2 
  • 4 x 20 yellow OLED – fully operational over temperature without the need for backlight or contrast control 
  • Event log – downloadable to USB flash drive or to PC through USB device port or optional serial/Ethernet port 
  • User-friendly, menu-driven 16-key data entry system has tactile and audible feedback, eliminating the need for cumbersome dip switches 
  • Front panel USB device port, optional EIA232 or ethernet, for printing the event log and all user settings and program card jumpers 


  • Power: 89 to 135V AC, 50/60Hz  
  • Requirements: 220V option: 89 to 265 V AC, 50/60 Hz
  • Humidity: 0 – 95% non-condensing 
  • Environment: Meets NEMA environmental standards  
  • Compatibility: NEMA TS-1 12 channel or NEMA TS-2 16 channel 
  • Operating temperature: -40°F to 176°F (-40°C to 80°C) 

Event logging and Recording

  • Logs 200 events including reset 
  • Voltage log records outside of users thresholds 
  • Replay mode allows a user to view the last twenty GYR displays prior to a fault 
  • Real-time clock provides time and date stamp in each event to nearest second 
  • Logs complete channel status at time of fault 
  • Keyboard options allow separate printing of event log and unit settings 

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