Source: https://www.emcbayswater.com.au/blog/certifications/fcc-ic-emc-radio-testing/configuration-fcc-part-15-emc-testing/
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Configuration for FCC Part 15 EMC testing | EMC Bayswater Pty Ltd
Posted by EMC Bayswater Pty Ltd on Wednesday, February 8, 2017
Tags EMC standards and procedures, EMC test plan, FCC Part 15 testing
Customers are required to prepare their product in the correct configuration for FCC Part 15 EMC testing. This includes the functionality or operation and also the associated cabling and much more. This brief blog article will highlight some of the requirements. FCC Part 15, Subpart B and also Innovation, Science and Economic Development (ISED) previously Industry Canada (ICES 003 etc) references the methods as per ANSI C63.4: 2014.
Configuration for FCC Part 15 EMC testing. General requirements
Operated at the nominal rated operating voltage i.e. 120VAC, 60Hz or DC, battery etc.
Operated at the normal environmental conditions for testing i.e. temperature between 0 to 40 Degrees Celsius and humidity of 10 to 90% RH.
Use of typical load conditions to load ports through either actual loads or simulated.
All the functionality or modes of operation shall be assessed. Usually the worst case mode is either determined through investigative measures i.e. pre-compliance testing or though the manufacturer’s engineering knowledge or testing.
Arranged in the typical arrangement
Worst-case orientation of the Equipment Under Test (EUT) shall be determined if the EUT can be orientated in more than one orientation in typical use.
The EUT configuration can be described as either tabletop, floor standing or a combination of tabletop and floor standing
If the product is handheld it shall be tested with and without the CISPR 16 artificial hand.
Typical end user configuration (i.e. as specified in the EUT instruction manual)
Host PC if required (i.e. PC card) with possibly the host PC cabinet enclosure removed.
Configuration for FCC Part 15 EMC testing. Port and terminal loading
Each different functional type of port shall be loaded with the appropriate cable type , cable length, load or termination and exercised in the correct manner.
If multiple identical ports exist then you must ensure additional port loading and cables do not contribute to the emissions.
Typical installation grounding conditions should be followed.
Configuration for FCC Part 15 EMC testing. Interconnecting wiring and power cables
Should be typical usage cable lengths and construction (i.e. non shielded, shielded, braided etc).
If the cable length is unknown, then a nominal 1m cable lengths shall be used, or alternatively a longer cable length that allows physical connectivity of components. For loop-back cables (port to port) we advise using a 2m cable length to satisfy the 1m cable from each port and additionally setup requirements of EN 55032 / CISPR 32.
If you require FCC Part 15 EMC product testing for your device in order to sell in the USA and associated regions please contact us and find out how we can help. FCC testing should be performed on a compliant ANSI 63.4: 2014 test site, like the EMC Bayswater’s iOATS Radiated emissions facility.
Configuration for FCC Part 15 EMC testing was last modified: November 22nd, 2017 by EMC Bayswater Pty Ltd
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