NINA-W1 series - User Manual
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 7 shows 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 currents
Functional tests
Digital I/O tests
Measurement and verification of RF characteristics in all supported bands. For example,
measurements of receiver RSSI and transmitter power levels and frequency tuning of the
reference clock.
Figure 7: 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 the pins
Component assembly on the device: It should be verified that:
o
Communication with the host controller can be established
o
The interfaces between the module and device are working
o
Overall RF performance test of the device including antenna