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8.5 | NMEA 0183

Relevant Receiver Models

This section is aimed at connecting NMEA 0183 Serial (RS232) compatible receivers to the COMMAND system. 

NOTE: Some GNSS receivers DO NOT possess an internal IMU for terrain compensation purposes. If the receiver doesn't have terrain compensation, we highly recommend running a X-Slope IMU on the implement in this situation so that Level COMMAND can apply the necessary terrain compensation to maintain accuracy with drain batters and other steeper slopes. 

Parts Required

  • BPF11284 - Front Extension Harness (10m)
  • PF81137 - Implement Pigtail Terminator Wiring Harness
  • T3H-S001 - COMMAND Impl Adapter – Stub Junction
  • T3H-G001 / T3H-G007 - COMMAND NMEA Extension Harness (8m or 12m)
  • Custom GNSS Adapter - Custom adapter for connection of the NMEA 0183 Serial compatible receiver to the T3H-S001 and T3H-G001/G007 adapters.

Connection Process

  • Connect the John Deere Front Extension Harness to the IBBC and route it along the hosing/implement making sure to leave some slack wherever the hitch might flex but also paying close attention to any objects that could get caught on the harnessing.
  • Connect the T3H-S001 adapter to the Front Extension Harness.
  • Connect the Implement Pigtail Terminator to the T3H-S001 adapter and secure the terminator to the implement receiver wiring harness.
  • Connect the CUSTOM adapter to the T3H-S001 adapter.
  • Connect the CUSTOM  adapter to the receiver's port ensuring connector keys are lined up.
  • Connect the NMEA extension harness T3H-G001 or T3H-G007 to the CUSTOM adapter, then connect the other end to the T3H-C005 external breakout harness.
  • Perform necessary setup of the GNSS receiver using provided manufacturer tools or programs:
    • Talker ID should be set to GP
    • Messages enabled - GGA, GSA, VTG
    • Output Update rate - 10Hz recommended
    • Baud Rate - 38400
  • Check that the receiver powers up correctly and that data is being received by COMMAND.
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