MYRICOM, INC. TEST REPORT FOR THE LAN INTERFACE CARD, M3F2-PCIXE-2

Transcription

1 MYRICOM, INC. TEST REPORT FOR THE LAN INTERFACE CARD, M3F2-PCIXE-2 EN55024 (1998), EN (2001), EN (1995 W/A1: 98), EN55022 (1998) CLASS A, CISPR 22 (1997) CLASS A & FCC PART 15 SUBPART B SECTION CLASS A COMPLIANCE DATE OF ISSUE: JANUARY 28, 2004 PREPARED FOR: Myricom, Inc. 325 North Santa Anita Avenue Arcadia, CA PREPARED BY: Mary Ellen Clayton CKC Laboratories, Inc. 5473A Clouds Rest Mariposa, CA W.O. No.: Date of test: January 20-21, 2004 This report contains a total of 68 pages and may be reproduced in full only. Partial reproduction may only be done with the written consent of CKC Laboratories, Inc. The results in this report apply only to the items tested, as identified herein. Page 1 of 68

2 TABLE OF CONTENTS Administrative Information...4 Summary of Results...5 Conditions for Compliance...5 Approvals...5 Equipment Under Test (EUT) Description...6 Equipment Under Test...6 Peripheral Devices...6 Specifications and Requirements...7 Report of Measurements...8 Table 1: Six Highest Radiated Emission Levels: EN Table 2: Six Highest Conducted Emission Levels: EN Table 3: Six Highest Conducted Emission Levels: CISPR Table 4: Six Highest Radiated Emission Levels: FCC >1 GHz...11 Table 5: Harmonic Emission Levels...12 Table 6: Voltage Fluctuations and Flicker Emission Levels...12 Table 7: ESD (Direct Discharge)...13 Table 8: Radiated Immunity...14 Table 9: EFTB (Power Cable)...21 Table 10: EFTB (I/O Cables)...21 Table 11: Surge (Power Mains)...22 Table 12: Surge (I/O Cables)...22 Table 13: Conducted Immunity...23 Table 14: Magnetic Immunity...25 Table 15: Voltage Dips & Interrupts...25 Testing...26 Emissions...26 Correction Factors...26 Table A: Sample Calculations...26 Test Instrumentation And Analyzer Settings...27 Table B: Analyzer Bandwidth Settings Per Frequency Range...27 Spectrum Analyzer Detector Functions...27 Peak...27 Quasi-Peak...27 Average...27 Radiated Emissions...28 Conducted Emissions...28 Harmonic Emissions...28 Flicker Emissions...28 Immunity...29 Monitoring of Operating Parameters...29 Electrostatic Discharge...29 Page 2 of 68

3 Radiated Immunity...29 Electrical Fast Transient Burst...30 Surge...30 Conducted Immunity...30 Voltage Dips and Interrupts...30 Appendix A: Test Setup Diagram and Photographs...31 Equipment Test Setup Diagram...32 Photograph Showing Radiated Emissions...33 Photograph Showing Radiated Emissions...34 Photograph Showing Mains Conducted Emissions...35 Photograph Showing Mains Conducted Emissions...36 Photograph Showing Harmonic & Flicker Emissions...37 Photograph Showing Electrostatic Discharge...38 Photograph Showing Electrostatic Discharge...39 Photograph Showing Electrostatic Discharge Points...40 Photograph Showing Radiated Immunity...41 Photograph Showing Radiated Immunity...42 Photograph Showing Electrical Fast Transient Burst...43 Photograph Showing Electrical Fast Transient Burst...44 Photograph Showing Surge Immunity...45 Photograph Showing Conducted Immunity...46 Photograph Showing Surge Immunity...47 Photograph Showing Voltage Dips And Interrupts...48 Appendix B: Test Equipment List - Emissions...49 Appendix C: Measurement Data Sheets...50 Page 3 of 68

4 ADMINISTRATIVE INFORMATION DATE OF TEST: January 20-21, 2004 DATE OF RECEIPT: January 20, 2004 PURPOSE OF TEST: To demonstrate the compliance of the LAN Interface Card, M3F2-PCIXE-2 with the requirements for EN , EN , EN55024, EN55022 Class A, CISPR 22 Class A and FCC Part 15 Subpart B Section Class A devices. TEST METHOD: EN (2001), EN (1995 w/a1: 98), EN55024 (1998), EN55022 (1998) and ANSI C63.4 (1992) MANUFACTURER: Myricom, Inc. 325 North Santa Anita Avenue Arcadia, CA REPRESENTATIVE: Alan Kulawik TEST LOCATION: CKC Laboratories, Inc. 110 Olinda Place Brea, CA Page 4 of 68

5 SUMMARY OF RESULTS As received, the Myricom, Inc. LAN Interface Card, M3F2-PCIXE-2 was found to be fully compliant with the following standards and specifications: European Union EN55024 (1998) EN55022 (1998) Class A EN (2001) EN (1995 w/a1: 98) Australia/New Zealand AS/NZS 3548 (1995 w/a1 & A2: 97) Class A using: EN55022 (1998) Class A Japan VCCI (April 2000) Class A using: CISPR 22 (1997) Class A VCCI Acceptance Nos. R-1256 & C-1319 United States FCC Part 15 Subpart B Class A using: FCC Part 15 Subpart B Section Class A CISPR 22 (1997) Class A ANSI C63.4 (1992) method FCC Site No Canada ICES-003 Class A using: FCC Part 15 Subpart B Section Class A CISPR 22 (1997) Class A ANSI C63.4 (1992) method Industry of Canada File No. IC 3172-D Note: 89/336/EEC Article 7.1 stipulates that a national standard transposed from the harmonized standard published in the OJ is to be used to show compliance. However, for convenience and to reduce confusion, the date of the CENELEC harmonized standard is used in the report. Should questions arise, the national standard transposed from the harmonized (BS EN) is the official standard used. CONDITIONS FOR COMPLIANCE No modifications to the EUT were necessary to comply. APPROVALS Steve Behm, Director of Engineering Services QUALITY ASSURANCE: TEST PERSONNEL: Joyce Walker, Quality Assurance Administrative Manager Septimiu Apahidean, EMC Test Engineer Stuart Yamamoto, EMC Engineer Page 5 of 68

6 EQUIPMENT UNDER TEST (EUT) DESCRIPTION The EUT tested by CKC Laboratories was a production unit. EQUIPMENT UNDER TEST LAN Interface Card Manuf: Myricom, Inc. Model: M3F2-PCIXE-2 Serial: NA PERIPHERAL DEVICES The EUT was tested with the following peripheral device(s): Keyboard Manuf: Model: Serial: Dell SK-1000REW NA Mouse Manuf: Microsoft Model: X Serial: NA Host Computer Manuf: Atipa Model: TP4DL6-2U2.4GX2 Serial: NA Modem Manuf: Hayes Model: Serial: A Printer Manuf: Lexmark Model: Z53 Serial: Monitor Manuf: Model: Serial: Dell P793 KR-04D Q-D9ZX Page 6 of 68

7 SPECIFICATIONS AND REQUIREMENTS The following summarizes the specifications and requirements for the emission and immunity tests performed on the EUT. If the actual test levels are higher or different than required, these levels are listed in the appropriate tables. Test Specification Requirement Radiated Emissions EN55022 (1998) Class A Mains Conducted Emissions EN55022 (1998) CISPR 22 (1997) Class A Harmonic Emissions EN (2001) See standard Voltage Fluctuations and Flicker Emissions EN (1995 w/a1: 98) See standard Electrostatic Discharge EN (1995) EN55024 (1998) Radiated Immunity EN (1997) EN55024 (1998) Electrical Fast Transient Burst EN (1995) EN55024 (1998) Surge EN (1995) EN55024 (1998) Conducted Immunity EN (1996) EN55024 (1998) Magnetic Immunity EN (1994) EN55024 (1998) Voltage Dips & Interrupts EN (1994) EN55024 (1998) +4 kv contact +8kV air 3 V/m 1kV (AC) 0.5kV (I/O) - NA 2kV (AC) 1kV (AC) 0.5kV (I/O) - NA 3 Vrms 1 A/m - NA >95%, 30% & >95% NA = Not Applicable Page 7 of 68

8 REPORT OF MEASUREMENTS The following tables report the worst case emissions levels recorded during the tests performed on the EUT. All readings taken were peak readings unless otherwise stated. The data sheets from which the emissions tables were compiled are contained in Appendix C. Table 1: Six Highest Radiated Emission Levels: EN55022 METER CORRECTION FACTORS CORRECTED SPEC FREQUENCY READING Ant Amp Cable Dist READING LIMIT MARGIN NOTES MHz dbµv db db db db dbµv/m dbµv/m db VQ VQ HQ VQ HQ VQ Test Method: EN55022 (1998) NOTES: H = Horizontal Polarization Spec Limit: EN55022 Class A V = Vertical Polarization Test Distance: 3 Meters Q = Quasi Peak Reading COMMENTS: The EUT is installed in the host system. Connected to the four ports of the EUT are two loopback connectors. Also connected to the host computer are a keyboard, mouse, monitor, printer, and modem. The host system is running software (gm_test/gm_debug_summary) to exercise the EUT. The monitor is displaying packets sent and errors detected. Voltage to the host system is 235VAC 50Hz. Temperature 18 C, Humidity 52%, Pressure: 100kPa. Page 8 of 68

9 Table 2: Six Highest Conducted Emission Levels: EN55022 METER CORRECTION FACTORS CORRECTED SPEC FREQUENCY READING Lisn Cable READING LIMIT MARGIN NOTES MHz dbµv db db db db dbµv dbµv db B W B W W B Test Method: EN55022 (1998) NOTES: B = Black Lead Spec Limit: EN55022 Class A W = White Lead COMMENTS: The EUT is installed in the host system. Connected to the four ports of the EUT are two loopback connectors. Also connected to the host computer are a keyboard, mouse, monitor, printer, and modem. The host system is running software (gm_test/gm_debug_summary) to exercise the EUT. The monitor is displaying packets sent and errors detected. Voltage to the host system is 235 VAC 50 Hz. Temperature 21 C, Humidity 50%, Pressure: 100kPa. Page 9 of 68

10 Table 3: Six Highest Conducted Emission Levels: CISPR 22 METER CORRECTION FACTORS CORRECTED SPEC FREQUENCY READING Lisn Cable READING LIMIT MARGIN NOTES MHz dbµv db db db db dbµv dbµv db WA BA W B W W Test Method: ANSI C63.4 (1992) NOTES: A = Average Reading Spec Limit: CISPR 22 Class A B = Black Lead W = White Lead COMMENTS: The EUT is installed in the host system. Connected to the four ports of the EUT are two loopback connectors. Also connected to the host computer are a keyboard, mouse, monitor, printer, and modem. The host system is running software (gm_test/gm_debug_summary) to exercise the EUT. The monitor is displaying packets sent and errors detected. Voltage to the host system is 110VAC 60Hz. Temperature 21 C, Humidity 50%, Pressure: 100kPa. Page 10 of 68

11 Table 4: Six Highest Radiated Emission Levels: FCC >1 GHz METER CORRECTION FACTORS CORRECTED SPEC FREQUENCY READING Ant Amp Cable Dist READING LIMIT MARGIN NOTES MHz dbµv db db db db dbµv/m dbµv/m db V H HA H H V Test Method: ANSI C63.4 (1992) NOTES: H = Horizontal Polarization Spec Limit: FCC Part 15 Subpart B Section Class A V = Vertical Polarization Test Distance: 3 Meters A = Average Reading COMMENTS: The EUT is installed in the host system. Connected to the four ports of the EUT are two loopback connectors. Also connected to the host computer are a keyboard, mouse, monitor, printer, and modem. The host system is running software (gm_test/gm_debug_summary) to exercise the EUT. The monitor is displaying packets sent and errors detected. Voltage to the host system is 110VAC 60Hz. Temperature 18 C, Humidity 52%, Pressure: 100kPa. Frequency range scanned and maximized, 1 to 6.25 GHz. Page 11 of 68

12 Table 5: EN Tested By: Septimiu Apahidean Harmonic Emissions Pass / Fail Pass Notes: See Appendix B for test equipment used and Appendix C for test data sheets. Table 6: EN Tested By: Septimiu Apahidean Voltage Fluctuations and Flicker Emissions Pass / Fail Pass Notes: See Appendix B for test equipment used and Appendix C for test data sheets. Page 12 of 68

13 EN55024 Table 7: EN ESD (Direct Discharge) Tested By: Septimiu Apahidean Location of discharge Type of discharge Test Level Pass / Fail / NA Performance Criterion Front HCP 4kV Pass B Front VCP 4kV Pass B Right VCP 4kV Pass B Back VCP 4kV Pass B Left VCP 4kV Pass B Front Contact 4kV Pass B Right Contact 4kV Pass B Back Contact 4kV Pass B Left Contact 4kV Pass B Front Air 8kV Pass B Back Air 8kV Pass B Left Air 8kV Pass B Right Air 8kV Pass B Top Air 8kV Pass B HCP=Horizontal Coupling Plane VCP=Vertical Coupling Plane Temperature: 22.4 C Relative Humidity: 34 % Atmospheric Pressure: 101 kpa Performance Criteria: Per EN55024 Annex C. Equipment Asset # Manufacturer Model # Serial # Cal Date Cal Due ESD Simulator KeyTek MZ-15ec Page 13 of 68

14 EN55024 Table 8: EN Radiated Immunity Tested By: Septimiu Apahidean Frequency Range MHz Test Distance Front V/H Back V/H Left Side V/H Right Side V/H Performance Criterion Pass Pass Pass Pass A V=Vertical H=Horizontal Test Level: 3 V/m, 80% 1 khz Amplitude Modulated (AM) Note: Dwell time was set at 1.5 seconds. Performance Criteria: Per EN55024 Annex C. Equipment Asset # Manufacturer Model # Serial # Cal Date Cal Due BiLog Antenna EMCO Amplifier AR 50W1000A Directional Coupler Werlatone C Spectrum Analyzer HP 8568B 2415A RF Section Spectrum Analyzer HP 85662A 2403A Display Section Quasi Peak Adapter HP 85650A 2043A Signal Generator Marconi / Freq MHz Field V /m Field H / m Page 14 of 68

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21 EN55024 Table 9: EN Electrical Fast Transient Burst (EFTB) (Power Cable) Tested By: Septimiu Apahidean EFTB insertion point + 1 kv pass / fail - 1 kv pass / fail Performance Criterion Line to Ground Pass Pass B Neutral to Ground Pass Pass B Protective Earth to Ground Pass Pass B Line/Neutral/Protective Earth to Ground. Pass Pass B Temperature: 22.3 C Relative Humidity: 35 % Atmospheric Pressure: 101 kpa Performance Criteria: Per EN55024 Annex C. Equipment Asset # Manufacturer Model # Serial # Cal Date Cal Due EFT Generator Velonex V Capacitive Coupling Clamp Velonex V Table 10: EN EFTB (I/O Cables) Cable tested +.5 kv pass / fail -.5 kv pass / fail Performance Criterion Signal Line NA NA NA NA=Not Applicable because the I/O cable is fiber optic. Page 21 of 68

22 EN55024 Table 11: EN Surge (Power Mains) Tested By: Septimiu Apahidean Voltage level kv Insertion points 0 degrees input +voltage- 90 degrees input +voltage- 180 degrees input +voltage- 270 degrees input +voltage- Performance Criterion Met pass / fail pass / fail pass / fail pass / fail 1 Line-Neutral Pass Pass Pass Pass B 2 Line-Ground Pass Pass Pass Pass B 2 Neutral-Ground Pass Pass Pass Pass B Temperature: 22.4 C Relative Humidity: 35 % Atmospheric Pressure: 101 kpa Performance Criteria: Per EN55024 Annex C. Equipment Asset # Manufacturer Model # Serial # Cal Date Cal Due Surge Generator KeyTek EMCPro Table 12: EN Surge (I/O Cables) Voltage level kv Cable pass / fail + pass / fail - Performance Criterion Met 0.5 DC Power Lines NA NA NA 0.5 Signal Line NA NA NA NA=Not Applicable because the EUT has no DC power lines and no ports directly connected to outside lines. Page 22 of 68

23 EN55024 Table 13: EN Conducted Immunity Tested By: Septimiu Apahidean Cable Tested Frequency Range Pass/fail Performance Criterion AC Power Line.15-80MHz Pass A Signal Line.15-80MHz NA NA Modulated with a 1 khz sine wave at 80%, 3 Vrms. NA=Not Applicable because the I/O cable is fiber optic. Performance Criteria: Per EN55024 Annex C. Equipment Asset # Manufacturer Model # Serial # Cal Date Cal Due Coupling Fischer FCC-801-M Decoupling Network 25 Injection Probe Fischer F Amplifier AR 100W Directional Coupler Werlatone C Spectrum Analyzer HP 8568B 2415A RF Section Spectrum Analyzer HP 85662A 2403A Display Section Quasi Peak Adapter HP 85650A 2043A Signal Generator Marconi / Page 23 of 68

24 Conducted immunity testing setup 3V RMS fro m A mplifier CDN Printer PC -A C Po wer Cord Modem Monitor Co mputer Keyboard Page 24 of 68

25 EN55024 Table 14: EN Magnetic Immunity Amplitude X-Axis Y-Axis Z-Axis Performance Criterion 1 A/m NA NA NA NA NA=Not Applicable because the EUT has no magnetically susceptible components. Table 15: EN Voltage Dips & Interrupts Tested By: Septimiu Apahidean % reduction Duration Pass/fail Performance Notes Criterion > period (10ms) Pass B 3 interrupts with 10 sec between each periods (500ms) Pass C 3 interrupts with 10 sec between each > periods (5 sec) Pass C 3 interrupts with 10 sec between each Performance Criteria: Per EN55024 Annex C. Equipment Asset # Manufacturer Model # Serial # Cal Date Cal Due Programmable 01695/ Pacific Power 345AMX / 250 / Power Source UPC32 Page 25 of 68

26 TESTING The cables were routed consistent with the typical application by varying the configuration of the test sample. Interface cables were connected to the available I/O ports of the test unit. The effect of varying the position of the cables was investigated to find the configuration that produced maximum emissions. I/O cables were of the type specified in the individual requirements. The length of cable that produced maximum emissions was selected. EMISSIONS The equipment under test (EUT) was set up in a manner that represented its normal use, as shown in the photographs in Appendix A. Any special conditions required for the EUT to operate normally are identified in the comments that accompany the emissions tables. The radiated and conducted emissions data was taken with the HP Spectrum Analyzer. Incorporating the applicable correction factors for distance, antenna, cable loss and amplifier gain, the data was reduced as shown in Table A. The corrected data was then compared to the applicable emission limits to determine compliance. Preliminary and final measurements were taken in order to ensure that all emissions from the EUT were found and maximized. CORRECTION FACTORS The basic spectrum analyzer reading was converted using correction factors as shown in the highest emissions readings in the tables. For radiated emissions in dbµv/m, the spectrum analyzer reading in dbµv was corrected by using the following formula in Table A. This reading was then compared to the applicable specification limit to determine compliance. TABLE A: SAMPLE CALCULATIONS Meter reading (dbµv) + Antenna Factor (db) + Cable Loss (db) - Distance Correction (db) - Preamplifier Gain (db) = Corrected Reading (dbµv/m) Page 26 of 68

27 TEST INSTRUMENTATION AND ANALYZER SETTINGS The test instrumentation and equipment listed in Appendix B were used to collect the radiated and conducted emissions data. For radiated measurements below 300 MHz, the biconical antenna was used. For frequencies from 300 to 1000 MHz, the log periodic antenna was used. For frequencies above 1000 MHz, the horn antenna was used. The HP spectrum analyzer was used for all measurements. Table B shows the analyzer bandwidth settings that were used in designated frequency bands. For conducted emissions, an appropriate reference level and a vertical scale size of 10 db per division were used. A 10 db external attenuator was also used during conducted tests, with internal offset correction in the analyzer. During radiated testing, the measurements were made with 0 db of attenuation, a reference level of 97 dbµv, and a vertical scale of 10 db per division. TABLE B: ANALYZER BANDWIDTH SETTINGS PER FREQUENCY RANGE TEST BEGINNING FREQUENCY ENDING FREQUENCY BANDWIDTH SETTING CONDUCTED EMISSIONS 150 khz 30 MHz 9 khz RADIATED EMISSIONS 30 MHz 1000 MHz 120 khz RADIATED EMISSIONS 1000 MHz 6.25GHz 1 MHz SPECTRUM ANALYZER DETECTOR FUNCTIONS The notes that accompany the measurements contained in the emissions tables indicate the type of detector function used to obtain the given readings. Unless otherwise noted, all readings were made in the "Peak" mode. Whenever a "Quasi-Peak" or "Average" reading is listed as one of the highest readings, this is indicated as a "Q" or an "A" in the appropriate table. The following paragraphs describe in more detail the detector functions and when they were used to obtain the emissions data. Peak In this mode, the Spectrum Analyzer or test engineer recorded all emissions at their peak value as the frequency band selected was scanned. By combining this function with another feature of the analyzer called "peak hold," the analyzer had the ability to measure transients or low duty cycle transient emission peak levels. In this mode the analyzer made a slow scan across the frequency band selected and measured the peak emission value found at each frequency across the band. Quasi-Peak When the true peak values exceeded or were within 2 db of the specification limit, quasi-peak measurements were taken using the HP Quasi-Peak Adapter for the HP Spectrum Analyzer. The detailed procedure for making quasi peak measurements contained in the HP Quasi-Peak Adapter manual was followed. Average For certain frequencies, average measurements may be made using the spectrum analyzer. To make these measurements, the test engineer reduces the video bandwidth on the analyzer until the modulation of the signal is filtered out. At this point the analyzer is set into the linear mode and the scan time is reduced. Page 27 of 68

28 RADIATED EMISSIONS During the preliminary radiated scan, the EUT was powered up and operating in its defined test mode. The frequency range of 30 MHz - 88 MHz was scanned with the biconical antenna located about 1.5 meter above the ground plane in the vertical configuration. During this scan, the turntable was rotated and all peaks at or near the limit were recorded. The frequency range of MHz was then scanned in the same manner using the biconical antenna and the peaks recorded. Lastly, a scan of the FM band from MHz was made, using a reduced resolution bandwidth and frequency span. The biconical antenna was changed to the horizontal polarity and the above steps were repeated. After changing to the log periodic antenna in the horizontal configuration, the frequency range of MHz was scanned. The log periodic antenna was changed to the vertical polarity and the frequency range of MHz was again scanned. For frequencies exceeding 1000 MHz, the horn antenna was used. Care was taken to ensure that no frequencies were missed within the FM and TV bands. An analysis was performed to determine if the signals that were at or near the limit were caused by an ambient transmission. If unable to determine by analysis, the equipment was powered down to make the final determination if the EUT was the source of the emission. A thorough scan of all frequencies was made manually using a small frequency span, rotating the turntable as needed. The test engineer maximized the readings with respect to the table rotation and configuration of EUT. Maximizing of the EUT was achieved by monitoring the spectrum analyzer on a closed circuit television monitor. CONDUCTED EMISSIONS The vertical metal plane used for conducted emissions was grounded to the earth. Power to the EUT was provided through a LISN. The LISN was grounded to the ground plane. All other objects were kept a minimum of 80 cm away from the EUT during the conducted test. The LISNs used were 50 µh-/+50 ohms. All readings within 20 db of the limit were recorded, and those within 6 db of the limit were examined with additional measurements using a slower sweep time. HARMONIC EMISSIONS Harmonics emissions data was taken with the Voltech. The harmonics of the EUT power supply conductors were tested in accordance with EN and measurements were found not to exceed the values calculated from EN emission limits. FLICKER EMISSIONS Flicker emissions data was taken with the Voltech. The voltage fluctuation and flicker emissions of the EUT power supply conductors were tested in accordance with EN and measurements were found not to exceed the values calculated from EN emission limits. Page 28 of 68

29 IMMUNITY The EUT was set up in a manner that represented its normal use, as shown in the setup photographs in Appendix A. Any special conditions required for the EUT to operate normally are identified in the comments that accompany the immunity tables. MONITORING OF OPERATING PARAMETERS The device was monitored during the tests by means of a visual check whereby the essential parameters were displayed. ELECTROSTATIC DISCHARGE During Electrostatic Discharge testing, the EUT was located on a wooden table measuring approximately 80 cm high, 1 meter deep, and 1.5 meters in length. A horizontal coupling plane, 1.6 meters by 0.8 meters, was placed on top of the table. The EUT was then placed on a 0.5 mm thick insulating material. A 0.1 meter separation from the coupling plane was obtained. A vertical coupling plane, 0.5 m by 0.5 m, was placed parallel to, and positioned 0.1 m from, the EUT. The coupling plane was electrically bonded through two 470 kω series resistors to the earth reference plane on the floor, which was attached to the ground on the electrical outlet service. The ESD generator (ESD gun) was grounded to the metal ground reference plane on the floor. The ESD generator was positioned at least 0.1 meter from the EUT, with the discharge electrode touching the coupling plane. The EUT was exposed to at least 100 (contact) discharges each at negative and positive polarity (50 discharges at each point), at a minimum of four test points, one being the horizontal coupling plane. 50 indirect discharges were applied to the center front edge of the horizontal coupling plane. The remaining test points received at least 50 direct contact discharges. If no direct contact test points were available, then at least 200 indirect discharges were applied to the vertical coupling plane. These tests were performed at a maximum repetition rate of one discharge per second. On the parts of the EUT where it was not possible to perform contact discharge testing, user accessible points were investigated using the air discharge method. A minimum of 10 single discharges were applied to the selected test points. RADIATED IMMUNITY A field strength of 3 V/m was established from 80 MHz to 1000 MHz. This frequency range was modulated with a 1 khz sine wave at 80%. The signal generators provided the modulated frequency at a 1% step size to the RF amplifiers. The RF amplifiers provided the necessary power to the antenna to establish the field levels. The antenna was positioned 3 meters from all four faces of the EUT. A biconilog antenna was used to cover the range of 80 to 1000 MHz in both polarizations. The field strength at the required 40 cm height was 2.3 V/m. Page 29 of 68