Advantech IPC-5120 Manual de usuario descargar pdf (Pagina 12)

Compliance Certification Services Inc.

Report No.: 60707201-F Refer No.: 60321204 Date of Issue: July 7, 2006

Page 12 Rev. 00

7.3 TEST PROCEDURE OF RADIATED EMISSION

Procedure of Preliminary Test

l The equipment was set up as per the test configuration to simulate typical usage per the

user’s manual. When the EUT is a tabletop system, a wooden turntable with a height of

0.8 meters is used which is placed on the ground plane. When the EUT is a floor-standing

equipment, it is placed on the ground plane which has a 3-12 mm non-conductive

covering to insulate the EUT from the ground plane.

l Support equipment, if needed, was placed as per ANSI C63.4.

l All I/O cables were positioned to simulate typical usage as per ANSI C63.4.

l The EUT received AC power source, 120V/60Hz, from the outlet socket under the

turntable. All support equipment received power from another socket under the turntable.

l The antenna was placed at 10 meter away from the EUT as stated in ANSI C63.4. The

antenna connected to the Spectrum Analyzer via a cable and at times a pre-amplifier

would be used.

l The Analyzer / Receiver quickly scanned from 30MHz to 1000MHz. The EUT test

program was started. Emissions were scanned and measured rotating the EUT to 360

degrees and positioning the antenna 1 to 4 meters above the ground plane, in both the

vertical and the horizontal polarization, to maximize the emission reading level.

l The test mode(s) described in Item 3.2 were scanned during the preliminary test:

l After the preliminary scan, we found the test mode described in Item 3.2 producing the

highest emission level.

l The EUT and cable configuration, antenna position, polarization and turntable position of

the above highest emission level were recorded for the final test.

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Advantech IPC-5120 Manual de usuario Pagina 12