EMC Test for Compliance with EU EMC Directive 2004/108/EUPartial Test
12-12-2012
Standards Description
EN 55022:2011 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
EN 55024:2010 Information technology equipment - Immunity characteristics - Limits and methods of measurement
Equipment under test (EUT)
• uServer Ver 1.1
• uServer EvalBoard Ver 1.0.
Client:
Nabto ApS
Åbogade 15, 8200, Aarhus N
Investigation carried out by:
MaJust ApS
Åbogade 15, 8200, Aarhus N
Test engineer: Jakob Justesen ([email protected])
Test site
Jens-EMC ApS
Randersvej 6
DK-8600 Silkeborg
Denmark
Test result:
• The EUT has undergone all applicable tests without remarks.
• The EUT is believed to comply with the 2004/108/EU EMC directive.
• Note: some tests where skipped due to dependency on target system.
uServer Ver 1.1 – EMC Test RapportPage 1 of 13 pages
EMC Test lab environmental
21ºC 51 % RH 1003 hPa
EUT and configuration:
uServer Ver 1.1:
• RJ-45: Ethernet connection to Internet Router - 10 meter Cat-5 STP cable
• 9VDC 0,5A mains power adaptor Xing Yuan El ectronics, Model XY0900500-E (100-240VAC input)
uServer Ver 1.1 – EMC Test RapportPage 2 of 13 pages
Test result - Immunity
Immunity test Test specifications
EN55024
Per. Crit.
Test Result
Immunity – Enclosure Port
Power Frequency Magnetic Field, Immunity EN 61 000-4-8
50 & 60Hz 30 A/m
A NOT TESTED1
RF Field ImmunityEN 61 000-4-3
10 V/m field strength, 1 kHz 80% AM 80 – 1000 MHz
A PASS
3 V/m field strength, 1 kHz 80% AM 1400 – 2000 MHz
PASS
1 V/m field strength, 1 kHz 80% AM 2000 – 2700 MHz
PASS
Electrostatic Discharge, Immunity EN 61 000-4-2
±4 kV contact mode Discharge to HCP B PASS
±4 kV contact mode Discharge to VCP PASS
±4 kV contact mode Discharge to EUT metal parts2
PASS
±8 kV Air mode Discharge to EUT 3 NA
1 Not tested, very low risk of failure.2 Discharge was performed to the RJ-45 connector metal housing. But NOT directly to the MCU pins.3 No enclosure port to test
uServer Ver 1.1 – EMC Test RapportPage 3 of 13 pages
Test result - Immunity
Immunity test Test specifications
EN55024
Per. Crit.
Test Result
Immunity – Signal Port
RF Conducted Immunity EN 61 000-4-6 (lines >3m)
10 VRMS, 1 kHz 80% AM 150 kHz – 80 MHz (47 MHz – 68 MHz 3 VRMS)
A PASS
Burst / Fast transients Immunity EN 61 000-4-4 (lines >3m)
± 1kV B PASS
Surge, Immunity EN 61 000-4-5 (lines >30m)
± 1kV between lines and ground
B NA*1
Immunity – Input & Output DC power Port
RF Conducted Immunity EN 61 000-4-6
10 VRMS, 1 kHz 80% AM 150 kHz – 80 MHz (47 MHz – 68 MHz 3VRMS)
A NA*2
Burst / Fast transients Immunity EN 61 000-4-4 (lines >3m)
± 2kV B NA*2
Surge, Immunity EN 61 000-4-5
± 0,5kV between lines and ground ± 0,5kV line to line
B NA*2
*1 Cable specified to be shorter that 30 m in user guide *2 No DC power port to test
uServer Ver 1.1 – EMC Test RapportPage 4 of 13 pages
Test result - Immunity
Immunity test Test specifications
EN55024
Per. Crit.
Test Result
Immunity – Input & Output AC power Port
RF Conducted Immunity Power port EN 61 000-4-6
3 VRMS, 1 kHz 80% AM 150 kHz – 80 MHz (47 MHz – 68 MHz 3VRMS)
A
NA4
Voltage variations DIPS, Immunity EN 61 000-4-11
-100 % dips for 1 periods (20ms) (0V) B
-30 % dips for 25 periods (500ms) (161V) C
Voltage Interruptions EN 61 000-4-11
->95 % dips for 250 periods (5000ms) C
Burst / Fast transients Immunity AC Power port EN 61 000-4-4
±1 kV B PASS
Surge, Immunity AC Power port EN 61 000-4-5
±2 kV line to ground ±1 kV line to line
B PASS
4 Dependent on uServer host equipment and application
uServer Ver 1.1 – EMC Test RapportPage 5 of 13 pages
Test result - Emission
Emission test Test specifications
EN55022
Test Result
Enclosure port RF Field emission
30MHz -230MHz 30dBuV/m @10m 230MHz-1000MHz 37dBuV/m @10m CISPR 16
PASS5
Low voltage AC mains port distortions, emission
Harmonic current <16A IEC 61 000-3-2
NA
Flicker IEC 61 000-3-3
NA
Voltage fluctuations IEC 61 000-3-11
NA
Harmonic current >16A <=75A IEC 61 000-3-12
NA
Low voltage AC mains port emission
150KHz - 500KHz 66-56 dBuV Quasi-Peak / 56-46 dBuV Average
NA
500KHz - 5MHz 56 dBuV Quasi-Peak / 46 dBuV Average
NA
5MHz- 30MHz 60 dBuV Quasi-Peak / 50 dBuV Average
NA
150KHz – 30MHz CISPR 14-1, Discontinuous disturbance
NA
DC Power port (Only ports, connected to DC power network, & remote local battery >30m cable)
150KHz - 500KHz 79 dBuV Quasi-Peak / 66 dBuV Average
NA
500kHz- 30MHz 73 dBuV Quasi-Peak / 60 dBuV Average
NA
Telecommunications / Network port
150KHz - 500KHz 84-74 dBuV Quasi-Peak / 74-64 dBuV Average 40-30 dBuA Quasi-Peak / 30-20 dBuA Average
PASS
500kHz- 30MHz 74 dBuV Quasi-Peak / 64 dBuV Average 30 dBuA Quasi-Peak / 20 dBuA Average
PASS
5 Measurement of emission up to 1GHz, because of max clock frequency = 41,67MHz
uServer Ver 1.1 – EMC Test RapportPage 6 of 13 pages
Test setup – immunity to ESD / Electro Static Discharge
Used test equipment: • ESD controller Compliance Instruments ESDC 30 J-EMC-0123 • ESD pistol Compliance Instruments ESDP 33 J-EMC-0123 • HCP J-EMC-0100 • VCP J-EMC-0101 • Bleeder resistor J-EMC-0102 • Bleeder resistor J-EMC-0103
Test for ESD / Electro Static Discharge ±1 kV, ±2 kV, ±4 kV Contact mode Discharge to:
• Coupling to HCP • Coupling to VCP• Metallic housing of Ethernet connector
No fault was observed during the test.
uServer Ver 1.1 – EMC Test RapportPage 7 of 13 pages
Test setup – Immunity to Fast transients / Burst
Used test equipment: • Burst generator Skals Elektronik BG2-MkII J-EMC-0009 • Cable RG58/U J-EMC-0105 • ISN ISN340 J-EMC-0008 • Capacitive Clamp J-EMC-0362
Test for immunity to fast transients / Burst
Coupling Device Severity kV Verdict
Mains supply ISN340 ±1 PASS
Signal cables Capacitive clamp ±0,5 PASS
No fault was observed during the test.
uServer Ver 1.1 – EMC Test RapportPage 8 of 13 pages
Test setup – Immunity to Fast transients / Burst
Used test equipment: • Burst generator Skals Elektronik BG2-MkII J-EMC-0009 • Cable RG58/U J-EMC-0105 • ISN ISN340 J-EMC-0008 • Capacitive Clamp J-EMC-0362
Test for immunity to fast transients / Burst
Coupling Device Severity kV Verdict
Mains supply ISN340 ±1 PASS
Signal cables Capacitive clamp ±0,5 PASS
No fault was observed during the test.
uServer Ver 1.1 – EMC Test RapportPage 9 of 13 pages
Test setup – RF Field Immunity
Used test equipment: • Controller Fujitsu PC + SW J-EMC-0177 • Signal generator R&S SME03 J-EMC-0196 • Amplifier AR 50W1000BM2 J-EMC-0173 • Amplifier AR 30S1G3 J-EMC-0347 • Power meter IFR 8541C J-EMC-0174 • Directional Coupler AR DC7144 J-EMC-0371 • Directional Coupler AR DC6080 J-EMC-0373 • Cable EcoFlex10 J-EMC-kabel-034 • Cable Semi Rigid J-EMC-kabel-030
RF Field Immunity EN 61 000-4-3 3 V/m field strength, 1 kHz 80% AM 80 – 1000 MHz Performed in GTEM1750 cell Performed in X,Y,Z-axis
No fault was observed during the test.
uServer Ver 1.1 – EMC Test RapportPage 10 of 13 pages
Test Setup – radiated emission
Used test equipment: • Cable semi-ridig J-EMC-kabel-030 • Cable semi-ridig J-EMC-kabel-031 • Measurement receiver Schaffner SCR3502
¾ Measurement with CISPR compliant receiver in GTEM1750 ¾ Auxiliary equipment is placed outside of test chamber ¾ Measured in X,Y,Z-axis and co related to OATS requirements
Test Result – radiated emission
Radiated emission is within limits
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Test setup – Conducted Emission on LAN cable
Conducted Emission pass the limits
uServer Ver 1.1 – EMC Test RapportPage 12 of 13 pages
Test Result – Conducted Emission on LAN cable
Conducted Emission pass the Limits for Quasi-Peak and Average measurement
uServer Ver 1.1 – EMC Test RapportPage 13 of 13 pages