Compliance Certification Services Inc.
Report No.: 60707201-F Refer No.: 60321204 Date of Issue: July 7, 2006
Page 10 Rev. 00
7.2 TEST PROCEDURE OF LINE CONDUCTED EMISSION
Procedure of Preliminary Test
l The EUT 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 table with a height of 0.8 meters is
used and is placed on the ground plane as per ANSI C63.4 (see Test Facility for the
dimensions of the ground plane used). 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 actual usage as per ANSI C63.4.
l The test system with EUT received AC power, 120V/60Hz, through a Line Impedance
Stabilization Network (LISN), which supplied power source and was grounded to the
ground plane.
l All support equipment received power from a second LISN.
l The EUT test program was started. Emissions were measured on each current carrying
line of the EUT using a EMI Test Receiver connected to the LISN powering the EUT. The
LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two
scans were taken: one with Line 1 connected to the Receiver and Line 2 connected to a 50
ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to
the Receiver.
l The Receiver scanned from 150kHz to 30MHz for emissions in each of the test modes.
l During the above scans, the emissions were maximized by cable manipulation.
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 configuration and cable configuration of the above highest emission level were
recorded for reference of the final test.
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