User Manual

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Figure 3-3. ATZB-24-B0
3.3.1 Certification scenarios
The following scenarios explain the usage of the ATZB-24-B0 module on customer’s
base board.
3.3.2 Scenario # 1
The ATZB-24-B0 module is bought by designers and used on a base board.
Atmel’s ATZB-24-B0 Module has been certified under Limited Modular category of
FCC part 15 subpart C. Limited modular certification applies to modules that do not
fully meet the requirements for a single modular certification. The ATZB-24-B0
module meets all but the requirement of having an on-board antenna or connector.
Designers are required to re-certify their products carrying this module as this module
brings out the Balanced RF Output without ending up in any antenna structure on the
module. Since there is RF signal flowing on the designer’s base board in such case,
the entire product has to be re-tested and certified. The new FCC ID obtained by the
designer has to be used to meet regulatory requirements.
By following the recommended design to connect the RF signal from B0 Module pins
to the Antenna, the probability of success in Re-certification tests is very high. This is
because the module has been successfully certified with Atmel’s Base board
reference. The Base board reference design that applies for the ATZB-24-B0 is
ATZB-EVB-24-SMA.
3.3.3 Scenario # 2
In cases were usage explained in Scenario #1 applies and additionally, application
dependent circuits as explained in Appendix A is used on the Base board, this
scenario applies.
If the circuits on the customer’s base board are either Intentional or Unintentional
Radiators or both, then the customer has to certify the entire product carrying the
ATZB-24-B0 Module. The probability of a successful certification lies with how good
or bad, the additional circuits on base board are designed in terms of regulatory
compliance. Atmel’s Base board reference design- ATZB-EVB-24-SMA in this case
can help customers in assuring success in the module related tests alone.