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The SL MA-310 serves as the interface between the fiber optic sensor and the processing unit on system level.  It should be installed in a weatherproofed road side cabinet. The interface responds to the optical sensor signal in a dynamic (AC-coupled) manner, i.e. the electrical signal caused when a load is applied to the sensor decreases to zero as the load remains applied. At a threshold, a digital trigger signal per channel is generated. This signal is automatically reset after an adjustable time period. These characteristics allow the SL MA-310 interface to operate without the need for adjustment. If the interface detects an interruption in the light transmission path of any channels, it flashes a particular light for each interrupted channel. The output signals (trigger signals) are transmitted via optocouplers which behave similar to relays, allowing the use of a variety of output circuitry.  


  • 3 channel digital interface
  • Up to 30dB dynamic range with IR LED laser
  • Flexible optocoupler digital outputs
  • Trigger level and minimum pulse duration are adjustable via jumpers
  • Specifically designed for compatibility with existing toll equipment (dimensionally and electrically)  


Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Fiber Optic Axle Sensors

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This information has been provided to your free of charge for your use but remains the sole property of TE Connectivity Corporation (''TE'') or SnapEDA,  Inc. or Ultra Librarian/EMA Design Automation, Inc. (collectively, "Company"). While Company has used reasonable efforts to ensure its accuracy, Company does not guarantee that it is error-free, not makes any other representation, warranty, or guarantee that the information is completely accurate or up-to-date. In many cases, the CAD data has been simplified to remove proprietary detail while maintaining critical interface geometric detail for use by customers. Company expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties or merchantability or fitness for a particular purpose.