Meaning
Regulatory certification procedures for electronic components allow a self-contained wireless transmitter to be certified independently of the final product in which it is housed. Achieving a complete modular approval means that the wireless module meets all regulatory requirements on its own and can be integrated into any host system without further transmitter testing. This process reduces both the time and the expense associated with bringing new connected devices to market.
Design Benefit
Developers often select pre-certified radio modules to avoid the complex RF testing phases of product development. Under a complete modular approval, the component is treated as a standalone radio, which allows the host product to inherit the module’s regulatory grants directly. This pathway is particularly advantageous for small to medium production runs where dedicated testing is cost-prohibitive.
Technical Qualification
Hardware designed for this level of certification must satisfy specific technical constraints, such as incorporating its own reference oscillator, power supply regulation, and on-board shielding. To secure a complete modular approval, the transmitter must also feature a unique antenna connector or a permanently attached antenna. These physical boundaries ensure that the radio behavior remains consistent regardless of the electrical environment of the host motherboard.
The module must be tested on a standalone evaluation board to prove its independence from any host power line fluctuations.
Host Verification
Manufacturers of the finished product must ensure that the assembly complies with unintended radiator standards. Even with a complete modular approval, the host device must undergo basic testing. The final product must display the module’s certification label.