JBL VOYAGER (serv.man3) EMC - CB Certificate ▷ View online
Report No.: EM201300534-4 Application No.:
ZJ00032799 Page 25 of 38
5.4 ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST
5.4.1 TEST SPECIFICATION
Basic Standard
EN 61000-4-4: 2012
Test Voltage
Electrical Fast Transient/Burst – EFT:
AC Power Port: ±1kV,Signal port ±0.5kV
Performance Criterion B
AC Power Port: ±1kV,Signal port ±0.5kV
Performance Criterion B
Polarity
Positive and Negative
Impulse Frequency
5 kHz
Impulse Wave-shape
5 ns/50ns for voltage
Burst Duration
15 ms
Burst Period
300 ms
Test Duration
2 minutes
5.4.2 TEST PROCEDURE
The EUT and its simulators shall be placed 0.1m high above the ground reference plane which is a min.
1m×1m metallic sheet with 0.65mm minimum thickness. This reference ground plane shall project
beyond the EUT by at least 0.1m on all sides and the minimum distance between EUT and all other
conductive structure, except the ground plane beneath the EUT, shall be more than 0.5m.
For input and AC power ports:
The EUT is connected to the power mains by using a coupling device which couples the EFT
interference signal to AC power lines. Both polarities of the test voltage should be applied during
compliance test and the duration of the test can’t less than 1min.
5.4.3 TEST SETUP
10 cm
isolation
supporter
isolation
supporter
AC
input
EFT
Generator
EUT
AC
AC Line
Ground Reference Plane
0.5m
Report No.: EM201300534-4 Application No.:
ZJ00032799 Page 26 of 38
5.4.4 TEST RESULTS
EUT
Wireless speaker system
Mode Number
JBL VOYAGER
Test date
2013-08-08
Voltage Supply
AC 230V/50Hz
Test Engineer
Bruce
environment
Tem:21℃ Hum:54 %100kPa
Test mode:
1. Test the EUT in mode 1：
AUDIOIN
(adapter)
2. Test the EUT in mode 2：
BT
(adapter)
3. Test the EUT in mode 3：
BT
(battery)
Test Point
Polarity
Test Level
(kV)
Required Passing
Performance
Actual
performance
Result
L–N
+/-
1
Criterion B
Criterion A*
PASS
A*: EUT is working on intended use operation, no abnormal phenomenon was observed.
Report No.: EM201300534-4 Application No.:
ZJ00032799 Page 27 of 38
5.5 IMMUNITY TO RF VOLTAGE OF MAINS, LOUDSPEAKER, HEADPHONE
AND AUDIO CONNECTERS (S2A)
5.5.1 TEST REQUIREMENT
Test Requirement:
EN 55020
Test Method:
EN 55020
Criterion Required:
A
Wanted Signal:
60dBuV 1KHz FM with 40KHz deviation at 98MHz for FM mode.
1KHz Test DVD/CD/Tape/sine wave for AUX mode.
Unwanted Signal:
1KHz AM 80% AM at the frequency listed below.
Exclude frequencies:
Unwanted signal and immunity limit for Mains, Loudspeaker and Headphone terminals.
Unwanted signal and immunity limit for audio input / output terminals.
Report No.: EM201300534-4 Application No.:
ZJ00032799 Page 28 of 38
5.5.2 TEST SETUP
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