NINA-B1 series - System Integration Manual
UBX-15026175 - R06
Product testing
Page 41 of 48
6
Product testing
6.1
u-blox In-Series production test
u-blox focuses on high quality for its products. All units produced are fully tested automatically in production
line. Stringent quality control process has been implemented in the production line. Defective units are analyzed
in detail to improve the production quality.
This is achieved with automatic test equipment (ATE) in production line, which logs all production and
measurement data. A detailed test report for each unit can be generated from the system. Figure 15 illustrates
typical automatic test equipment (ATE) in a production line.
The following tests are performed as part of the production tests:
•
Digital self-test (firmware download, MAC address programming)
•
Measurement of voltages and currents
•
Functional tests
•
Digital I/O tests
•
Measurement of RF characteristics in all supported bands (such as receiver RSSI calibration, frequency
tuning of reference clock, calibration of transmitter power levels and so on.)
Figure 15: Automatic test equipment for module test
6.2
OEM manufacturer production test
As the testing is already done by u-blox, an OEM manufacturer does not need to repeat firmware tests or
measurement of the module’s RF performance or tests over analog and digital interfaces in their production test.
However, an OEM manufacturer should focus on:
•
Module assembly on the device; it should be verified that:
o
Soldering and handling process did not damage the module components
o
All module pins are well soldered on device board
o
There are no short circuits between pins
•
Component assembly on the device; it should be verified that:
o
Communication with host controller can be established
o
The interfaces between module and device are working
o
Overall RF performance test of the device including antenna
Dedicated tests can be implemented to check the device. For example, the measurement of module current
consumption when set in a specified state can detect a short circuit if compared with a “Golden Device” result.
