SWRA797 September   2024 CC1312PSIP

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 RF Function and Frequency Range
    2. 1.2 LP-EM-CC1312PSIP
  5. 2Software – Certified PHYs
    1. 2.1 14dBm Tx and Rx Port
      1. 2.1.1 WB-DSSS
      2. 2.1.2 TI 15.4
      3. 2.1.3 PowerG PHY
      4. 2.1.4 mioty PHY
      5. 2.1.5 WiSun PHY
    2. 2.2 20dBm Tx Port
      1. 2.2.1 WB-DSSS PHY
      2. 2.2.2 TI 15.4 PHY
      3. 2.2.3 PowerG PHY
      4. 2.2.4 mioty PHY
      5. 2.2.5 Wi-SUN PHY
  6. 3Hardware
    1. 3.1 Recommended Layout
      1. 3.1.1 4-Layer Design
      2. 3.1.2 2-Layer Design
      3. 3.1.3 GND Vias
      4. 3.1.4 Maximum Track Length
    2. 3.2 Antennas
      1. 3.2.1 Certified Antennas
      2. 3.2.2 Cross-Linking Certified Antennas
    3. 3.3 Reusing of FCC ID and IC
      1. 3.3.1 Documentation Supplied to the TCB
      2. 3.3.2 Permissive Change Policy
        1. 3.3.2.1 Class 1 Permissive Change (C1PC)
        2. 3.3.2.2 Class 2 Permissive Change (C2PC)
        3. 3.3.2.3 Class 3 Permissive Change (C3PC)
      3. 3.3.3 Changes in the FCC ID or IC
      4. 3.3.4 Re-use of FCC ID and IC Certifications Step-by-Step
    4. 3.4 Recommended Production Testing
  7. 4References

3.3.2 Permissive Change Policy

Copying the modular certified hardware design cannot always be fully possible in an end-user product. Several end products have various different hardware designs or even software changes. In this case when deviating from the original hardware or software testing or ownership of responsibility (change in ID filing), then FCC regulations (2.1043) denote the rules for changes to original certification.

  • PCB / Hardware Alterations
  • Antenna Alterations
  • Software Alterations
  • RF Exposure Alterations
  • Other Alterations

If there are large changes in the end-user product then a new certification is required. This is determined by the test house when submitting all documentation to the TCB. However, permissive changes do not require a new certification.

For the hardware alterations, the frequency of operation must be maintained that was performed in the original tests. Changing the operating frequency requires a new certification. Modifications on the hardware that does not affect the RF emissions can by implemented by a permissive change.

For the antenna alterations, as previously mentioned, if the antenna gain of 2.69dBi is exceeded, then the antenna must be re-filed and a class II permissive change (CP2C) is needed.

For the software alterations, changes are allowed just as long as the emissions are not increased and still operating within the original frequency band of certification. If the software change does permit a greater output power or emission, then a new certification is required.