This test report consists of 29 pages in total. It may be duplicated completely for legal use with the
approval of the applicant. It should not be reproduced except in full, without the written approval of
our laboratory. The client should not use it to claim product endorsement by NVLAP or any U.S.
government agencies. The test results in the report only apply to the tested sample.
The EUT is a kind of computer peripheral with wireless data transmission function.
According to the specifications of the manufacturer, it must comply with the
requirements of the following standards:
EN 301 489-1 (09-2001), EN 301 489-17 (09-2001)
EN 55022:1998, Class B (Conducted Emission)
EN 61000-4-2:1995
EN 61000-4-3:1995
According to clause 7.1 (table 2) and clause 7.2 (table 3) of EN 301 489-1 (09-2001),
all tests have been performed and recorded as per the above standards.
The EUT has been tested as an independent unit together with other necessary
accessories or support units. The following support units or accessories were used to
form a representative test configuration during the tests.
a. The EUT was placed 0.4 meters from the conducting wall of the shielded room
with EUT being connected to the power mains through a line impedance
stabilization network (LISN). Other support units were connected to the power
mains through another LISN. The two LISNs provide 50 ohm/ 50uH of coupling
impedance for the measuring instrument.
b. Both lines of the power mains connected to the EUT were checked for maximum
conducted interference.
c. The frequency range from 150 kHz to 30 MHz was searched. Emission levels
over 10dB under the prescribed limits could not be reported
For the actual test configuration, please refer to the related item – Photographs of the
Test Configuration.
4.1.6 EUT OPERATING CONDITIONS
a. Connected the EUT to a computer system placed on a testing table.
b. The computer system ran a test program to enable EUT under
transmission/receiving condition continuously at specific channel
frequency.
c. The computer system sent "H" messages to its screen.
d. The computer system sent “H” messages to modem.
e. The computer system sent "H" messages to printer and the printer prints
The phenomena allowed during and after test in each criterion are clearly stated in
the following table
Performance criteria
CriteriaDuring testAfter test
Shall operate as intended.
May show degradation of
performance (see note1).
A
Shall be no loss of function.
Shall be no unintentional
transmissions.
May show loss of function (one or
more).
May show degradation of
performance (see note 1).
B
No unintentional transmissions.
Shall operate as intended.
Shall be no degradation of
performance (see note 2).
Shall be no loss of function.
Shall be no loss of stored data or
user programmable functions.
Functions shall be selfrecoverable.
Shall operate as intended after
recovering.
Shall be no degradation of
performance (see note 2).
Shall be no loss of stored data or
user programmable functions.
May be loss of function (one or more). Functions shall be recoverable
by the operator.
C
Shall operate as intended after
recovering.
Shall be no degradation of
performance (see note 2).
NOTE 1:Degradation of performance during the test is understood as a degradation to a level
not below a minimum performance level specified by the manufacturer for the use of
the apparatus as intended. In some cases the specified minimum performance level
may be replaced by a permissible degradation of performance.
If the minimum performance level or the permissible performance degradation is not
specified by the manufacturer then either of these may be derived from the product
description and documentation (including leaflets and advertising) and what the user
may reasonably expect from the apparatus if used as intended.
NOTE 2: No degradation of performance after the test is understood as no degradation below a
minimum performance level specified by the manufacturer for the use of the
apparatus as intended. In some cases the specified minimum performance level may
be replaced by a permissible degradation of performance. After the test no change of
actual operating data or user retrievable data is allowed.
If the minimum performance level or the permissible performance degradation is not
specified by the manufacturer then either of these may be derived from the product
description and documentation (including leaflets and advertising) and what the user
may reasonably expect form the apparatus if used as intended.
a. Electrostatic discharges were applied only to those points and surfaces of the
EUT that are accessible to users during normal operation.
b. The test was performed with at least ten single discharges on the pre-selected
points in the most sensitive polarity.
c. The time interval between two successive single discharges was at least 1
second.
d. The ESD generator was held perpendicularly to the surface to which the
discharge was applied and the return cable was at least 0.2 meters from the
EUT.
e. Contact discharges were applied to the non-insulating coating, with the pointed
tip of the generator penetrating the coating and contacting the conducting
substrate.
f. Air discharges were applied with the round discharge tip of the discharge
electrode approaching the EUT as fast as possible (without causing
mechanical damage) to touch the EUT. After each discharge, the ESD
generator was removed from the EUT and re-triggered for a new single
discharge. The test was repeated until all discharges were complete.
g. At least ten single discharges (in the most sensitive polarity) were applied to
the Horizontal Coupling Plane at points on each side of the EUT. The ESD
generator was positioned vertically at a distance of 0.1 meters from the EUT
with the discharge electrode touching the HCP.
h. At least ten single discharges (in the most sensitive polarity) were applied to
the center of one vertical edge of the Vertical Coupling Plane in sufficiently
different positions that the four faces of the EUT were completely illuminated.
The VCP (dimensions 0.5m x 0.5m) was placed vertically to and 0.1 meters
from the EUT.
For the actual test configuration, please refer to the related item – Photographs of the
Test Configuration.
NOTE:
TABLE-TOP EQUIPMENT
The configuration consisted of a wooden table 0.8 meters high standing on the Ground Reference
Plane. The GRP consisted of a sheet of aluminum at least 0.25mm thick, and 2.5 meters square
connected to the protective grounding system. A Horizontal Coupling Plane (1.6m x 0.8m) was placed
on the table and attached to the GRP by means of a cable with 940kΩ total impedance. The equipment
under test, was installed in a representative system as described in section 7 of EN 61000-4-2:1995,
and its cables were placed on the HCP and isolated by an insulating support of 0.5mm thickness. A
distance of 1-meter minimum was provided between the EUT and the walls of the laboratory and any
other metallic structure.
The test procedure was in accordance with EN 61000-4-3
a. The testing was performed in a fully-anechoic chamber. The transmit antenna
was located at a distance of 3 meters from the EUT.
b. The frequency range is swept from 80 MHz to 1000 MHz / 1400 MHz to
2000 MHz, with the signal 80% amplitude modulated with a 1kHz sinewave. The
rate of sweep did not exceed 1.5 x 10
-3
decade/s. Where the frequency range is
swept incrementally, the step size was 1% of momentary frequency.
c. The dwell time at each frequency shall be not less than the time necessary for the
EUT to be able to respond.
d. The field strength level was 3Vrms.
e. The test was performed with the EUT exposed to both vertically and horizontally
3m measurement distance in a Full Anechoic Chamber
EUT
RF Amplifier
RF Generator
and
control system
Monitoring
system
For the actual test configuration, please refer to the related item – Photographs of the
Test Configuration.
NOTE:
TABLETOP EQUIPMENT
The EUT installed in a representative system as described in section 7 of EN 610004-3:1996 was placed on a non-conductive table 0.8 meters in height. The system
under test was connected to the power and signal wire according to relevant
installation instructions.
7 APPENDIX - INFORMATION ON THE TESTING LABORATORIES
We, ADT Corp., were founded in 1988 to provide our best service in EMC and Safety
consultation. Our laboratories are accredited and approved by the following
approval agencies according to ISO/IEC 17025, Guide 25 or EN 45001:
USAFCC, NVLAP, UL
GermanyTUV Rheinland
JapanVCCI
New ZealandMoC
NorwayNEMKO
CanadaINDUSTRY CANADA
R.O.C.CNLA, BSMI, DGT
Copies of accreditation certificates of our laboratories obtained from approval
agencies can be downloaded from our web site: www.adt.com.tw/index.5/phtml.
If you have any comments, please feel free to contact us at the following:
Lin Kou EMC Lab:
Tel: 886-2-26052180
Fax: 886-2-26052943
Lin Kou Safety Lab:
Tel: 886-2-26093195
Fax: 886-2-26093184