Siemens Data Key and Data Key Reader

Note: The m50 controller was obsoleted by Yunex Traffic and replaced with the m60 product line. MoboTrex will continue to support any service and warranty issues you may have with existing Siemens m50 controllers.

Yunex controller line for use in NEMA style cabinets

The Yunex m50 series controllers are an innovative, fully actuated controller unit with an extensive compliment of operational, programming, and diagnostic capabilities. The m50 series exceeds many industry standards and specifications with advanced functionality beyond the normal NEMA standards. The m50 features new capabilities and enhancements in hardware design and communications. The series consists of the m51 TS2 Type 1, m52 TS2 Type 1,2 and the m53 TS2 Type 2 models.



  • Multiple communication  interface options
  • Backward compatible to supports a variety of cabinet styles including the NEMA TS1, TS2 Type 1, and TS2 Type 2
  • Eliminates need for EPROM chip replacement
  • Ability to reduce costs by using single front panel for multiple controllers
  • Simple and proven closed-loop solution


  • Built in external 10 Base-T Ethernet port with configurable IP
  • 8MB of flash memory
  • NEMA TS2 Type 1 15-pin Input/Output serial connection to the bus interface unit
  • NEMA TS2 Type 2 for direct parallel connection to load switches and detectors
  • Removable hand held front panel with 8×40 character backlit LCD display

Central Processor Unit (CPU)

  • Open architecture platform with standard OS9™ operating system
  • Motorola 68360 32 bit, 25MHz processor with CPA32 instruction set
  • TOD Clock with automatic daylight savings time adjustment
  • Power supply will power the SRAM during power failures


  • 10 Base-T Ethernet with front panel RJ-45 connector
  • Unique MAC address assigned by the Institute of Electrical and Electronic Engineers (IEEE)
  • EIA-232 port for uploading/downloading applications software and OS updating
  • Single and multi-mode fiber optic options
  • 1200 bps Frequency Shift Keying (FSK) modem (optional)

Controller Housing

  • Seven (7) expansion slots with card guides for standard size Versa Modules and two (2) slots with card guides for standard Joint NEMA/AASHTO.ITE ATC  modems (optional)
  • Polycarbonate construction (excluding back panel), rear mounting tabs and aluminum power supply mounting plate for electrical grounding
  • Carrying Handle