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ELD Data Interpreter


ST20 ELD Data Interpreter

Our ST20 product has been specifically designed for the ELD (Electronic Logging Device) ecosystem. ST20 is an easy to install direct connect device. It retrieves the vehicle information that is required by our ELD Compliance application partners through a direct connection to the vehicle with the appropriate harness (J1939/J1708). This required vehicle data is transmitted to the android device through the RS232 interface, which provides the data and charging connection.

Key Features

  • Support Heavy Duty Vehicle Protocol – J1939 (250/500 kbps)/J1708
  • Vehicle parameters passed through RS232 for ELD requirement:
    Vehicle ID Number (VIN), Vehicle Speed, Odometer, Engine Hour, Engine RPM
  • ASCII text data format sent over RS232 that can be connected to an Android based tablets or smartphones.
  • Support LED - Indicator of Operating Status (Active/Sleep)
  • Support Sleep Mode to Protect Vehicle Battery
  • Support wired connection for data and charging to android tablet (Single Cable)
AT Command Supported
Interface J1939, J1708, RS232
Connectivity Output Vehicle data via RS232
6 pin Connector J1708 +/-     
CAN Hi/Lo    
Power Supply (e.g. +12V/+24V)  
5 pin connector Output Power    
1x Enable (Control on/off of 5 pin cable to save power.)
RS232, Rx     
RS232, Tx     
Power Supply DC 8 V ~ 33 V, Main power +/- inversion protection
Power Consumption Typical        : 10mA @24V   
  Sleep mode : Approx. 1.0mA @24V  
Housing Dimension 53.5(W) × 56(L) × 19(T) mm     
Weight 32g (without event cable)     
Electric Protection Protection against ESD and overvoltage     
Operational Temperature Range -30˚C ~ +80˚C     
Certificates FCC, RoHS