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Recording/Replaying RS232 With LabSat 3 Wideband

Updated on May 11, 2026

Recording #

  1. Connect the ‘RS_Rx’ and ‘GRN’ ports of the expansion connector to the appropriate wires/cable.
  2. Fit the expansion connector to the LabSat.
  3. Power up the LabSat 3 Wideband and navigate to the ‘Digital’ section of the menu. Select the ‘RS232’ option.
  4. Pressing the ‘REC’ button on the front of the LabSat will begin the recording. The LabSat will record all serial messages available.
Connection diagram showing a device under test connected through an RLACS202 module to a Racelogic LS03W unit with GNSS antenna.

Replaying #

  1. Connect to the ‘RS_Tx’ and ‘GRN’ ports on the LabSat 3 expansion connector.
  2. Fit the expansion connector to the LabSat.
  3. Highlight the previously recorded scenario and press the ‘Play’ button on the front of the LabSat to start the scenario replay.
Connection diagram showing a device under test connected through an RLACS202 module to a Racelogic LS03W unit and secondary device under test connection.