Changes between Version 15 and Version 16 of fcc
- 06/18/2021 09:38:14 PM (2 years ago)
v15 v16 19 19 20 20 1. Use a metal enclosure with minimal openings. Make sure if the enclosure is painted that the paint is removed/masked in areas that come in direct contact with the connector shields. For example, the Ethernet RJ45 shields should make direct contact with the enclosure metal. Any paint in the cutout hole should be removed/masked. 21 2. Use shielded cables for power, Ethernet, USB, etc. Make sure the shields are terminated at both ends during testing. 21 2. Use shielded cables for power, Ethernet, USB, etc. Make sure the shields are terminated at both ends during testing. See below for shielded vs non-shielded connectors. 22 23 Non-shielded RJ45 24 [[Image(nonshielded.png)]] 25 26 Shielded RJ45 27 [[Image(shielded.png)]] 28 29 22 30 3. Proper grounding of the board, enclosure, cables and power supply. Gateworks boards typically have several mounting holes with options to tie these mounting holes to either digital or chassis ground. There are also options for tying chassis and digital ground together. Contact support for the various options for each board. 23 31 4. Use pre-certified wifi radios. By using a pre-certified radio you can avoid having to re-certify the radio which can be more expensive since it is classified as a transmitting device. Note you must use the radio in the same configuration and with same antenna (gain) as it was certified. Check with your certification house for exact rules and regulations.