SMC Networks D3USG Manual De Usuario

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ANSI C63.17-2006 
Methods of Measurement of the Electromagnetic and Operational Compatibility of UPCS Devices 
Copyright © 2007 IEEE. All rights reserved. 
ANSI C63.14-1998, American National Standard Dictionary for Technologies of Electromagnetic 
Compatibility (EMC), Electromagnetic Pulse (EMP), and Electrostatic Discharge (ESD). 
 
Code of Federal Regulations Title 47 Part 2 (47CFR2), Frequency Allocations and Radio Treaty Matters: 
General Rules and Regulations.
 
Code of Federal Regulations Title 47 Part 15 (47CFR15), Subpart D, Telecommunication—Radio 
Frequency Devices—Unlicensed Personal Communications Service Devices.  
 
IEEE Std 149
-1979, IEEE Standard Test Procedures for Antennas.
3. Definitions, symbols, acronyms, and abbreviations 
3.1 Definitions 
For the purposes of this standard, the following terms and definitions apply. IEEE 100
The Authoritative 
Dictionary of IEEE Standards Terms, Seventh Edition, and ANSI C63.14-1998, unless otherwise noted in 
the definitions of this clause, apply throughout this document. Definitions in particular product standards or 
in applicable regulations take precedence.  
 
3.1.1 activate: Apply power to the EUT; the EUT is running, but user-level communication is not 
occurring. For example, for a voice system after activation, the two ends of the link are synchronized, but 
no voice communication has begun. See also: initiate. 
3.1.2 bandwidth,  emission,  B: The bandwidth in hertz of the signal between two points, one below the 
carrier center frequency and one above the carrier center frequency, that are 26 dB down relative to the 
maximum level of the modulated carrier. It is based on the use of measurement instrumentation employing 
a peak detector function with an instrument resolution bandwidth (RBW) approximately equal to 1.0% of 
the measured emission bandwidth of the EUT [see 47CFR15.303(c)]. 
3.1.3 channel: A repeated time and spectrum combination used for communications. In 47CFR15.323(c), 
the FCC uses the description a “combined time and spectrum window.” In this standard, channel and access 
channel have the same meaning. 
3.1.4 communications  channel: A repeated time and frequency window whose primary purpose is the 
transmission of user-level communications. See also: control and signaling channel.  
3.1.5 conducted emission and monitoring tests: Tests performed with RF signal sources (to test 
monitoring thresholds) and instrumentation (to measure emissions) connected directly to the antenna port 
on the EUT transceiver through appropriate RF attenuation, if applicable, via shielded coaxial cable and 
passive combiner/splitter networks. See also: radiated emission and monitoring tests
3.1.6 control and signaling channel: A repeated time and frequency window whose exclusive purpose is 
the transmission of information used by a system incorporating the EUT to maintain timing 
synchronization or other information that does not require repeated and ongoing acknowledgement (e.g., a 
beacon used to broadcast a timing synchronization and identification signal). See also: communications 
channel.
 
                                                 
4
 U.S. Regulatory Guides are available from the Superintendent of Documents, U.S. Government Printing Office, P.O. Box 37082, 
Washington, DC 20013-7082, USA (http://www.access.gpo.gov/). 
5
 The IEEE standards or products referred to in this clause are trademarks of the Institute of Electrical and Electronics Engineers, Inc. 
6
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Piscataway, NJ 08855-1331, USA (http://standards.ieee.org/). 
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