When you use USB Sensors in BlackTrax, the Motive settings differ from the PoE BTSensors, which include settings in the Devices, Camera Calibration, and Synchronization windows.

For use with USB Sensors, the TimeKeeper must be configured to work with a USB System. The USB Sensors cannot be used with a PoE System TimeKeeper if its settings are not modified. 

The TimeKeeper is connected to the Sync port of an OptiHub via RCA connection. The BTRouter and Timekeeper must be connected to a gigabit PoE switch when using USB Sensors.

The TimeKeeper must be shipped configured for USB and you must contact Technical Support to swap the TimeKeeper for USB from PoE Systems.

Supported USB Sensors include Flex 3 and Flex 13 USB Sensors.

Setting up USB sensors in the BlackTrax System

USB Sensors connect to the BlackTrax System using the USB A > USB B cable that is included.

To connect USB sensors to BlackTrax

1. Connect the USB Sensors to the OptiHub to connect to the BTServer.
   • Attention:
     • Do not exceed 5 m (16.4 ft) maximum distance between the USB Sensor and the OptiHub.
     • Do not use USB extensions, couplers, or adapters between the OptiHub and the USB Sensors.
2. Connect the TimeKeeper to the OptiHub to provide sync information to the USB Sensors. Connect the TimeKeeper to the OptiHub through the Sync In port via RCA connection.
3. Connect the OptiHub to a BTServer.
   • You may use up to 2 x 5 m (16 ft) active USB extenders in addition to the original 5 m (16 ft) USB cable.
   • The maximum distance from BTServer to OptiHub can increase to 15 m (49.21 ft) when you use USB extenders. 
   • Important Notes:
     • Multiple OptiHubs can be linked via their RCA Synchronization ports to increase the sensor count because each OptiHub supports only six (6) BTSensors.
     • The same USB cable limitations mentioned above apply when using multiple OptiHubs with the BTSystem.
     • Every single OptiHub to BTServer connection requires its own dedicated USB cable connection.

Preparing IR Sensors in Motive

To prepare the IR sensors

1. Open Motive.
   • Result: Motive recognizes the USB Sensors. Your BTSensors will populate the Devices list as outlined in the Checking the Connectivity of BTSensors page.
2. To focus the BTSensors, refer to the Using Motive to Aim BTSensors page for focusing instructions.
   • Tip: During aiming, set the LED setting for the Group of Sensors to 15.

Calibrating USB Sensors in Motive

To calibrate USB sensors

1. Follow the calibration steps outlined in the Calibrating a BTSensor page in the Motive for BlackTrax section then apply changes to the following steps for USB settings.
2. On the Camera Calibration window, click Calibration Options.
3. Click the OptiWand drop-down menu under Calibration Options then click OptiWand-CW-500.
4. On the Properties window in Motive 2.2, set the IR Filter toggle On or on the Devices window in Motive 2, set the LED slider value to where the wand can be clearly visible to the BTSensors.
5. Follow Steps 2 to 5 under the Wand Calibration section of the Calibrating a BTSensor page.
6. After completing the steps above, follow the steps in the Ground Plane Calibration page.

Camera Calibration window

• Result: The system is calibrated. Motive saves the current state and returns to the last calibration and camera settings when reopened.

Tracking Mode Settings in Motive 2.2

To send information from Motive

1. In Motive, change the layout to Configuration preset. From the Layout menu, choose Configuration.
   • Tip: You may click the drop-down box at the right-hand side of the main toolbar and click Configuration from the drop-down menu of layout presets.
   • Results: Motive displays the Configuration layout preset showing the Devices, Application Settings, Perspective View, Streaming, and Synchronization windows.
2. On the Devices window, select the group and set FPS to 100.
3. On the Application Settings window, click the Live Reconstruction tab.
4. Under the Reconstruction Settings section, click Marker Labeling Mode and then click Active and Passive Markers or Active Markers Only to set Motive for tracking.
   • Result: Active and passive markers or only active markers are displayed on the Perspective View window.
   • Note: After calibration, Motive sets the Maximum Residual to the lowest value possible, which is not forgiving enough in most situations. We recommend you increase Maximum Residual to at least 15 mm after calibration. You may also increase the value higher if calibration is poor or the BTSensors have moved since calibration. Keep in mind the Active Residual in the Status Bar and ensure that value is the lowest possible. If the value is too high for acceptable use (greater than 5 mm in most cases and 10 mm in extreme cases), you should consider re-calibrating you space.
5. On the Devices window, select eSync.
6. On the Properties pane, click the Source drop-down menu in the Sync Input Settings section and then click OptiSync.
7. On the Sync Offset field, type 5000.

Note: In Streaming, Properties, and Application Settings windows, you can verify the correct settings for normal tracking.

• Filters Type drop-down menu under the Filters section of the Cameras tab in the Application Settings window is set to None.
• Enable Point Cloud Reconstruction checkbox in the Live Reconstruction tab in the Application Settings window is selected.
• In the Streaming pane, the Broadcast Frame Data toggle is set to On and the Local Interface field is set to loopback.
• In the Properties pane, Input Divider and Input Multiplier are set to 1.

Tracking Mode Settings in Motive 2

To send information from Motive

1. In Motive, change the layout to Configuration preset. From the Layout menu, choose Configuration.
   • Tip: You may click the drop-down box at the right-hand side of the main toolbar and click Configuration from the drop-down menu of layout presets.
   • Results: Motive displays the Configuration layout preset showing the Devices, Application Settings, Perspective View, Streaming, and Synchronization windows.
2. On the Devices window, click Filters under the Properties section.
3. On the Devices window, select the group and set FPS to 100.
4. On the Application Settings window, click the Live Reconstruction tab.
5. Click Marker Labeling Mode under the Reconstruction Settings section and then click Active and Passive Markers or Active Markers Only to set Motive for tracking.
   • Result: Active and passive markers or only active markers are displayed on the Perspective View window.
   • Note: After calibration, Motive sets the Maximum Residual to the lowest value possible, which is not forgiving enough in most situations. We recommend you increase the Maximum Residual to at least 15 mm after calibration. You may also increase it higher if calibration is poor or the BTSensors have moved since calibration. Keep in mind the Active Residual in the Status Bar and ensure that value is the lowest possible. If the value is too high for acceptable use (greater than 5 mm in most cases and 10 mm in extreme cases), you should consider re-calibrating your space.
6. On the Synchronization window, click the Synchronization drop-down menu and then click Custom Synchronization.
7. On the Details section, click Sync Input.
8. Click the Source drop-down menu under Sync Input and then click OptiSync.
9. Click Synchronization Control and then type 5000 on the Sync Offset (us) field.
10. On the Synchronization section, click Apply.

Note: In Streaming, Properties, and Application Settings windows, you can verify the correct settings for normal tracking.

• Filters Type drop-down menu under the Filters section of the Cameras tab in the Application Settings window is set to None.
• Enable Point Cloud Reconstruction checkbox in the Live Reconstruction tab in the Application Settings window is selected.
• In the Streaming pane, the Broadcast Frame Data toggle is set to On and the Local Interface field is set to loopback.
• In the Properties pane, Input Divider and Input Multiplier are set to 1.

BlackTrax

The system is now ready to work with the main BlackTrax software. For more information on outputs from BlackTrax, please see the Output Configuration page.

Ensure that BTBeacons (and possibly Rigid Frames) have been added to the Beacons widget and all changes were applied for the system to output data.