ANNA-B112 - System integration manual
UBX-18009821 - R09
Product testing
Page 53 of 66
C1-Public
OEM manufacturer production test
As the testing is already done by u-blox, an OEM manufacturer does not need to repeat software 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:
•
Soldering and handling process did not damage the module components
•
All module pins are well soldered on device board
•
There are no short circuits between pins
•
Component assembly on the device; it should be verified that:
•
Communication with host controller can be established
•
The interfaces between the module and device are working
•
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.
The standard operational module firmware and test software on the host can be used to perform
functional tests (communication with the host controller, check interfaces) and to perform basic RF
performance tests.
6.2.1
“Go/No go” tests for integrated devices
A “Go/No go” test compares the signal quality with a “Golden Device” in a location with known signal
quality. This test can be performed after establishing a connection with an external device.
A very simple test can be performed by just scanning for a known Bluetooth low energy device and
checking the signal level (Received Signal Strength Indicator (RSSI)).
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These kinds of test may be useful as a “go/no go” test but not for RF performance measurements.
This test is suitable to check the functionality of the communication with the host controller and the
power supply. It is also a means to verify if components are well soldered.
A basic RF functional test of the device including the antenna can be performed with standard
Bluetooth low energy devices as remote stations. The device containing the ANNA-B112 module and
the antennas should be arranged in a fixed position inside an RF shield box to prevent interferences
from other possible radio devices to get stable test results.
