User guide

Hub administration
D2119 Dart RTLS User Guide 66
1 Start Hub Administration and Management application, click Administration.
2 In the Administration view, click the Advanced tab to open the web page.
3 Select desired read range control mode, coarse or fine.
4 Check Normalized Data Quality Indication (DQI) to select normalized DQI mode or
deselect the option for default DQI mode.
5 Click Save for the user settings to take effect.
Reference tag suspension
Reference tag ties timing of receivers, which is critical for correct tag location. To achieve correct
and reliable referencing, line of sight of reference tag for each associated receiver needs to be
maintained. At some applications, because of limitation of system installation, object or
personnel movement will break this line of sight from time to time, and degrade the Dart RTLS
system performance. To avoid this impact, you can turn on reference tag suspension option.
When this option is on, the RTLS system will check to see if consistent and complete referencing
is obtained in a short period (30 seconds) after each hub firmware restart. If the referencing is
obtained, this referencing is fixed and will be used in the following tag location calculation. Till
next hub firmware restart, the hub will not modify referencing based on receiving time of each
reference tag transmission.
When reference suspension is enabled but fails, the hub will not calculate tag location. Instead,
for each tag blink, the hub will send presence data (Non-locate P data), if one or more RTLS
receivers have “Presence Detection” configured (see page 33 for configuring Presence Detect for
a Receiver).
Reference Suspension Automatic Retry on Failure:
The initial reference suspension after system reboot or firmware restart could fail for different