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 (jju@majust.dk)

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

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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

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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

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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.

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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.

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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.

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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.

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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

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Test Result – Conducted Emission on LAN cable

Conducted Emission pass the Limits for Quasi-Peak and Average measurement

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