Test report

FCC ID: NJV0310-0951

Test Report

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FCCID_8463

July 16, 1998 Chief, Equipment Authorization Branch, Authorization and Evaluation Division, Office of Engineering and Technology FEDERAL COMMUNICATIONS COMMISSION P.O. Box 358315 Pittsburgh, PA 15251-5315 Gentlemen: The enclosed documents constitute a formal submittal and request for a Class II Permissive Change pursuant to Subpart C of Part 15 of FCC Rules (CFR 47) regarding changes to intentional radiators. A change is being proposed to the Advanced Fibre Communications model mSSR- XCVR 2.4 GHz, which would result in changes to the performance characteristics originally reported to the Commission. Since the mSSR-XCVR 2.4 GHz is presently certified, an emissions test has been performed to demonstrate that it continues to comply with FCC Part 15 limits for intentional radiators. This submittal was prepared by Elliott Laboratories, as duly authorized agent. A copy of the letter of our appointment as agent is enclosed. Please also find enclosed a check in the amount of $45.00 for the application fee. If there are any questions or if further information is needed, please contact Elliott Laboratories for assistance. Sincerely, Mark Briggs Manager, EMC Consulting Services MB/crm Enclosures: Application Fee FCC Form 731 Agent Authorization Letter Anti-Drug Abuse Statement Request For Confidentiality Emissions Test Report with Exhibits File: R27473

Electromagnetic Emissions Test Report and Request for Class II Permissive Change pursuant to FCC Part 15, Subpart C Specifications for a Intentional Radiator on the Advanced Fibre Communications Model: mSSR-XCVR 2.4 GHz PRESENT FCC ID: NJV0310-0951 GRANT DATE: May 6, 1998 GRANTEE: Advanced Fibre Communications, Inc. 1 Willowbrook Court Petaluma, CA 94954 TEST SITE: Elliott Laboratories, Inc. 684 W. Maude Avenue Sunnyvale, CA 94086 REPORT DATE: July 16, 1998 FINAL TEST DATE: July 13, 1998 TEST ENGINEER: Pamela Galvan and Herb Smith AUTHORIZED SIGNATORY: ______________________________ Mark Briggs Manager, EMC Consulting Services Elliott Laboratories, Inc. is accredited by the National Voluntary Laboratory Accreditation Program under Lab Code 200069-0 for Federal Communications Commission Methods, CISPR Methods, and Austel Technical Standards. This report shall not be reproduced, except in its entirety, without the written approval of Elliott Laboratories, Inc. File: R27473 Page 1 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 TABLE OF CONTENTS COVER PAGE ....................................................................................... 1 TABLE OF CONTENTS............................................................................ 2 SCOPE ................................................................................................ 3 OBJECTIVE .......................................................................................... 3 TEST SITE............................................................................................ 4 GENERAL INFORMATION.............................................................. 4 CONDUCTED EMISSIONS CONSIDERATIONS.................................... 4 RADIATED EMISSIONS CONSIDERATIONS ....................................... 4 MEASUREMENT INSTRUMENTATION ...................................................... 5 RECEIVER SYSTEM ...................................................................... 5 INSTRUMENT CONTROL COMPUTER .............................................. 5 LINE IMPEDANCE STABILIZATION NETWORK (LISN) ........................ 5 POWER METER............................................................................ 6 FILTERS/ATTENUATORS............................................................... 6 ANTENNAS................................................................................. 6 ANTENNA MAST AND EQUIPMENT TURNTABLE............................... 6 INSTRUMENT CALIBRATION......................................................... 6 TEST PROCEDURES............................................................................... 7 EUT AND CABLE PLACEMENT ....................................................... 7 CONDUCTED EMISSIONS .............................................................. 7 RADIATED EMISSIONS.................................................................. 7 DIRECT MEASUREMENTS OF EMISSIONS FROM THE ANTENNA PORT.. 7 SPECIFICATION LIMITS AND SAMPLE CALCULATIONS............................... 8 CONDUCTED EMISSIONS SPECIFICATION LIMITS............................. 8 RADIATED EMISSIONS SPECIFICATION LIMITS ................................ 8 SAMPLE CALCULATIONS - CONDUCTED EMISSIONS......................... 9 SAMPLE CALCULATIONS - RADIATED EMISSIONS ...........................10 EQUIPMENT UNDER TEST (EUT) DETAILS................................................11 GENERAL..................................................................................11 ENCLOSURE .............................................................................. 11 INPUT POWER............................................................................11 EMI SUPPRESSION DEVICES.........................................................11 PRINTED WIRING BOARDS...........................................................11 SUBASSEMBLIES........................................................................12 SUPPORT EQUIPMENT.................................................................12 EXTERNAL I/O CABLING..............................................................13 TEST MODES.............................................................................. 13 ANTENNA SYSTEM .....................................................................13 PROPOSED MODIFICATION DETAILS.......................................................14 GENERAL..................................................................................14 PRINTED WIRING BOARDS...........................................................14 TEST RESULTS....................................................................................15 TEST DATA ANALYSIS - CONDUCTED ............................................15 TEST DATA ANALYSIS - RADIATED................................................15 TEST DATA ANALYSIS - ANTENNA CONDUCTED .............................15 TEST DATA ANALYSIS - PROCESSING GAIN, POWER AND BANDWIDTH15 File: R27473 Page 2 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 TABLE OF CONTENTS EXHIBIT A Test Equipment Calibration ...................................................... 16 EXHIBIT B Test Measurement Data........................................................... 17 EXHIBIT C Photographs of Test Configurations............................................ 18 EXHIBIT D Detailed Photographs of the Construction...................................... 19 EXHIBIT E Block Diagram..................................................................... 20 EXHIBIT F Schematic Diagrams............................................................... 21 EXHIBIT G Theory of Operation .............................................................. 22 EXHIBIT H Operator's Manual ................................................................ 23 File: R27473 Page 3 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 SCOPE An electromagnetic emissions test has been performed on the Advanced Fibre Communications Transceiver model mSSR-XCVR 2.4 GHz pursuant to Subpart C of Part 15 of FCC Rules for intentional radiators. Conducted and radiated emissions data has been collected, reduced, and analyzed within this report in accordance with measurement guidelines set forth in FCC Rules This test has been performed to confirm continued compliance of a new version of the mSSR-XCVR 2.4 GHz in accordance with Part 2, Section 2.1043 of the FCC Rules for permissive changes to Certified devices. The intentional radiator above has been tested in a simulated typical installation to demonstrate compliance with the relevant FCC performance and procedural standards. Final system data was gathered in a mode that tended to maximize emissions by varying orientation of EUT, orientation of power and I/O cabling, antenna search height, and antenna polarization. Every practical effort was made to perform an impartial test using appropriate test equipment of known calibration. All pertinent factors have been applied to reach the determination of compliance. The test results recorded herein are based on a single type test of the Advanced Fibre Communications model mSSR-XCVR 2.4 GHz and therefore apply only to the tested sample. The sample was selected and prepared by Scott Pradels of Advanced Fibre Communications, Inc.. OBJECTIVE The primary objective of the manufacturer is compliance with Subpart C of Part 15 of FCC Rules for the radiated and conducted emissions of intentional radiators. In this case, minor modifications to the design of the subject device require that additional testing be performed to demonstrate that the device continues to comply with the Rules. The original Grant of Equipment Authorization issued by the FCC for the Certification of the subject device will be valid for the new version once acceptance is received from the FCC. Certification is a procedure where the manufacturer or a contracted laboratory makes measurements and submits the test data and technical information to the FCC. The FCC issues a Grant of Equipment Authorization upon successful completion of their review of the submitted documents. Once the equipment authorization has been obtained, the label indicating compliance must be attached to all identical units which are subsequently manufactured. Maintenance of FCC compliance is the responsibility of the manufacturer. Any modification of the product which may result in increased emissions should be checked to ensure compliance has been maintained (i.e., printed circuit board layout changes, different line filter, different power supply, harnessing or I/O cable changes, etc.). File: R27473 Page 4 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 TEST SITE GENERAL INFORMATION Final test measurements were taken on July 13, 1998 at the Elliott Laboratories Open Area Test Site located at 684 West Maude Avenue, Sunnyvale, California. Pursuant to section 2.948 of the Rules, construction, calibration, and equipment data has been filed with the Commission. The FCC recommends that ambient noise at the test site be at least 6 dB below the allowable limits. Ambient levels are below this requirement with the exception of predictable local TV, radio, and mobile communications traffic. The test site contains separate areas for radiated and conducted emissions testing. Considerable engineering effort has been expended to ensure that the facilities conform to all pertinent FCC requirements. CONDUCTED EMISSIONS CONSIDERATIONS Conducted emissions testing is performed in conformance with ANSI C63.4. Measurements are made with the EUT connected to the public power network through a nominal, standardized RF impedance, which is provided by a line impedance stabilization network, known as a LISN. A LISN is inserted in series with each current-carrying conductor in the EUT power cord. RADIATED EMISSIONS CONSIDERATIONS The FCC has determined that radiation measurements made in a shielded enclosure are not suitable for determining levels of radiated emissions. Radiated measurements are performed in an open field environment. The test site is maintained free of conductive objects within the CISPR defined elliptical area incorporated in ANSI C63.4 guidelines. File: R27473 Page 5 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 MEASUREMENT INSTRUMENTATION RECEIVER SYSTEM AN EMI receiver as specified in CISPER 16 is used for emissions measurements. The ESH3 receiver can measure over the frequency range of 9 kHz up to 2000 MHz. These receivers, allow both ease of measurement and high accuracy to be achieved. The receivers have Peak, Average, and CISPR (Quasi-peak) detectors built into their design so no external adapters are necessary. The receiver automatically sets the required bandwidth for the particular detector used during measurements. For measurements above the frequency range of the receivers, a spectrum analyzer is utilized because it provides visibility of the entire spectrum along with the precision and versatility required to support engineering analysis. Average measurements above 1000MHz are performed on the spectrum analyzer using the linear-average method with a resolution bandwidth of 1 MHz and a video bandwidth of 10 Hz. INSTRUMENT CONTROL COMPUTER A Rohde and Schwarz EZM Spectrum Monitor/Controller is utilized to convert the receiver measurements to the field strength at the antenna, which is then compared directly with the appropriate specification limit. This provides faster, more accurate readings by performing the conversions described under Sample Calculations within the Test Procedures section of this report. Results are printed in a graphic and/or tabular format, as appropriate. The EZM provides a visual display of the signal being measured. In addition, the EZM Spectrum Monitor runs the automated data collection programs which control both receivers. This provides added accuracy since all site correction factors, such as cable loss and antenna factors, are added automatically. LINE IMPEDANCE STABILIZATION NETWORK (LISN) Line conducted measurements utilize a fifty microhenry Line Impedance Stabilization Network as the monitoring point. The 50 uH LISNs used were manufactured by Fischer Custom Communications, model LISN-3 in combination with a 250 uH Fischer Custom Communications LISN-3 CISPR adapter. This network provides for calibrated radio frequency noise measurements by the design of the internal low pass and high pass filters on the EUT and measurement ports, respectively. File: R27473 Page 6 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 POWER METER A power meter and thermister mount are used for all output power measurements from transmitters as they provides a broadband indication of the power output. The power meter used was the Hewlett Packard model 432A, S/N 992-05509 and the thermister mount was the Hewlett Packard model 478A, S/N 46397. FILTERS/ATTENUATORS External filters and precision attenuators are often connected between the receiving antenna or LISN and the receiver. This eliminates saturation effects and non-linear operation due to high amplitude transient events. ANTENNAS A biconical antenna is used to cover the range from 30 MHz to 300 MHz and a log periodic antenna is utilized from 300 MHz to 1000 MHz. Narrowband tuned dipole antennas are used over the 30 to 1000 MHz range for precision measurements of field strength. Above 1000 MHz, a horn antenna is used. The antenna calibration factors are included in site factors which are programmed into the test receivers ANTENNA MAST AND EQUIPMENT TURNTABLE The antennas used to measure the radiated electric field strength are mounted on a non- conductive antenna mast equipped with a motor-drive to vary the antenna height. ANSI C63.4 specifies that the test height above ground for table mounted devices shall be 80 centimeters. Floor mounted equipment shall be placed on the ground plane if the device is normally used on a conductive floor or separated from the ground plane by insulating material from 3 to 12 mm if the device is normally used on a non-conductive floor. During radiated measurements, the EUT is positioned on a motorized turntable in conformance with this requirement. INSTRUMENT CALIBRATION All test equipment is regularly checked to ensure that performance is maintained in accordance with the manufacturer's specifications. All antennas are calibrated at regular intervals with respect to tuned half-wave dipoles. An appendix of this report contains the list of test equipment used and calibration information. File: R27473 Page 7 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 TEST PROCEDURES EUT AND CABLE PLACEMENT The FCC requires that interconnecting cables be connected to the available ports of the unit and that the placement of the unit and the attached cables simulate the worst case orientation that can be expected from a typical installation, so far as practicable. To this end, the position of the unit and associated cabling is varied within the guidelines of ANSI C63.4, and the worst case orientation is used for final measurements. CONDUCTED EMISSIONS Conducted emissions are measured at the plug end of the power cord supplied with the EUT. Excess power cord length is wrapped in a bundle between 30 and 40 centimeters in length near the center of the cord. Preliminary measurements are made to determine the highest amplitude emission relative to the specification limit for all the modes of operation. Placement of system components and varying of cable positions are performed in each mode. A final peak mode scan is then performed in the position and mode for which the highest emission was noted on all current carrying conductors of the power cord. RADIATED EMISSIONS Radiated emissions measurements are performed in two phases as well. A preliminary scan of emissions is conducted in which all significant EUT frequencies are identified with the system in a nominal configuration. At least two scans are performed from 30 to 1000 MHz. One or more of these is with the antenna polarized vertically while the one or more of these is with the antenna polarized horizontally. During the preliminary scans, the EUT is rotated through 360˚, the antenna height is varied and cable positions are varied to determine the highest emission relative to the limit. A speaker is provided in the receiver to aid in discriminating between EUT and ambient emissions. Other methods used during the preliminary scan for EUT emissions involve scanning with near field magnetic loops, monitoring I/O cables with RF current clamps, and cycling power to the EUT. Final maximization is a phase in which the highest amplitude emissions identified in the spectral search are viewed while the EUT azimuth angle is varied from 0 to 360 degrees relative to the receiving antenna. The azimuth which results in the highest emission is then maintained while varying the antenna height from one to four meters. The result is the identification of the highest amplitude for each of the highest peaks. Each recorded level is corrected in the receiver using appropriate factors for cables, connectors, antennas, and preamplifier gain. Emissions which have values close to the specification limit may also be measured with a tuned dipole antenna to determine compliance. DIRECT MEASUREMENTS OF EMISSIONS FROM THE ANTENNA PORT Direct measurements are performed with the antenna port of the EUT connected to either the power meter or spectrum analyzer via a suitable attenuator and/or filter. These are used to ensure that the front end of the measurement instrument is not overloaded by the fundamental transmission. File: R27473 Page 8 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 SPECIFICATION LIMITS AND SAMPLE CALCULATIONS The limits for conducted emissions are given in units of microvolts, and the limits for radiated emissions are given in units of microvolts per meter at a specified test distance. Data is measured in the logarithmic form of decibels relative to one microvolt, or dB microvolts (dBuV). For radiated emissions, the measured data is converted to the field strength at the antenna in dB microvolts per meter (dBuV/m). The results are then converted to the linear forms of uV and uV/m for comparison to published specifications. For reference, converting the specification limits from linear to decibel form is accomplished by taking the base ten logarithm, then multiplying by 20. These limits in both linear and logarithmic form are as follows: CONDUCTED EMISSIONS SPECIFICATION LIMITS Frequency Range Limit Limit (MHz) (uV) (dBuV) ________________________________________________________________________ 0.450 to 30.000 250 48 RADIATED EMISSIONS SPECIFICATION LIMITS The limits below were used for all spurious emissions that fell in restricted bands. Frequency Range Limit Limit (MHz) (uV/m @ 3m) (dBuV/m @ 3m) ________________________________________________________________________ 0.009-0.490 2400/FKHz @ 300m 67.6-20*log10(FKHz) @ 300m 0.490-1.705 24000/FKHz @ 30m 87.6-20*log10(FKHz) @ 30m 1.705 to 30 30 @ 30m 29.5 @ 30m 30 to 88 100 40 88 to 216 150 43.5 216 to 960 200 46.0 Above 960 500 54.0 File: R27473 Page 9 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 SAMPLE CALCULATIONS - CONDUCTED EMISSIONS Receiver readings are compared directly to the conducted emissions specification limit (decibel form) as follows: Rr - B = C and C-S=M where: Rr = Receiver Reading in dBuV B = Broadband Correction Factor* C = Corrected Reading in dBuV S = Specification Limit in dBuV M = Margin to Specification in +/- dB * Broadband Level - Per ANSI C63.4, 13 dB may be subtracted from the quasi-peak level if it is determined that the emission is broadband in nature. If the signal level in the average mode is six dB or more below the signal level in the peak mode, the emission is classified as broadband. File: R27473 Page 10 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 SAMPLE CALCULATIONS - RADIATED EMISSIONS Receiver readings are compared directly to the specification limit (decibel form). The receiver internally corrects for cable loss, preamplifier gain, and antenna factor. The calculations are in the reverse direction of the actual signal flow, thus cable loss is added and the amplifier gain is subtracted. The Antenna Factor converts the voltage at the antenna coaxial connector to the field strength at the antenna elements. A distance factor, when used for electric field measurements, is calculated by using the following formula: Fd = 20*LOG10 (Dm/Ds) where: Fd = Distance Factor in dB Dm = Measurement Distance in meters Ds = Specification Distance in meters Measurement Distance is the distance at which the measurements were taken and Specification Distance is the distance at which the specification limits are based. The antenna factor converts the voltage at the antenna coaxial connector to the field strength at the antenna elements. The margin of a given emission peak relative to the limit is calculated as follows: Rc = Rr + Fd and M = Rc - Ls where: Rr = Receiver Reading in dBuV/m Fd = Distance Factor in dB Rc = Corrected Reading in dBuV/m Ls = Specification Limit in dBuV/m M = Margin in dB Relative to Spec File: R27473 Page 11 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 EQUIPMENT UNDER TEST (EUT) DETAILS GENERAL The Advanced Fibre Communications model mSSR-XCVR 2.4 GHz is a Spread-Spectrum Transceiver which is designed to operate using Direct Sequence techniques. The sample was received on July 13, 1998 and tested on July 13, 1998. The EUT consisted of the following component(s): Manufacturer/Model/Description Serial Number FCC ID Number AFC mSSR-XCVR-A RFl Board 8100-0281 NJV0310-0951 AFC AIM Antenna Interface Module 8100-0951 NJV0310-0951 ENCLOSURE The mSSR-XCVR enclosure is primarily constructed of fabricated sheet steel. It measures approximately 8 cm wide by 8 cm deep by 14 cm high. The AIM enclosure is primarily constructed of fabricated sheet steel. It measures approximately 6 cm wide by 4 cm deep by 10 cm high. INPUT POWER The EUT uses the following 48 V power supply contained within the enclosure: Manufacturer/Description Assembly Number Rev. Serial Number AFC mR-PSU 8100-0346 1C AFC01361313 EMI SUPPRESSION DEVICES The EUT contained the following EMI suppression devices during emissions testing: Description Manufacturer Part Number None - - PRINTED WIRING BOARDS The Advanced Fibre Communications model mSSR-XCVR 2.4 GHz contained the following printed wiring boards during emissions testing: Manufacturer/Description Assembly # Rev. Serial # Crystals (MHz) AFC mSSR-XCVR-A 81000281 0D AFC01361169 400, 280, Xr, RFl Board and Xt * Note: * Xt is a VCO which varies from 2210 - 2265 MHz, depending upon the actual operating channel. Xr is a VCO which varies from 22250 - 2305 MHz, depending upon the operating channel. File: R27473 Page 12 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 SUBASSEMBLIES The Advanced Fibre Communications model mSSR-XCVR 2.4 GHz contained the following subassembly modules during emissions testing: Manufacturer/Description Assembly # Rev. Serial Number AFC Antenna Interface Module (AIM)* 8100-0951 1B AFC013620 AFC RSC/24 Enclosure 0310-1001 2A Nor Serialized Note: The AIM is unmodified from the original submittal. SUPPORT EQUIPMENT The following equipment was used as local support equipment for emissions testing: Manufacturer/Model/Description Serial Number FCC ID Number AFC mR-PSU 48V input Power supply* 8100-0346 N/A AFC mSSR-XCVR-B Digital Board* 8100-0282 N/A AFC mCPU Main CPU Board* 8100-0078 N/A Mean Well S320-48 230V ac to 48Vdc Power supply None N/A Tecom 1m parabolic dish antenna None N/A The following equipment was used as remote support equipment for emissions testing: Manufacturer/Model/Description Serial Number FCC ID Number None - - File: R27473 Page 13 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 EXTERNAL I/O CABLING The I/O cabling configuration during emissions testing was as follows: Cable Description Length (m) From Unit/Port To Unit/Port 50 Coaxial 1.1 SSR-XCVR Input AIM Output 50 Coaxial 1.1 SSR-XCVR Output AIM Input 50 Coaxial 1.1 Antenna AIM Antenna Unshielded 1.5 SSRXCVR Power supply External power supply TEST MODES The EUT was configured to constantly transmit on either the low (2410 MHz), center (2430 MHz) or high (2460 MHz) channel. ANTENNA SYSTEM The antenna system used with the Advanced Fibre Communications Transceiver, model mSSR-XCVR 2.4 GHz, is designed to be professionally installed and so utilizes a standard rf connector (N-type). The EUT can be used with a variety of high gain parabolic dish antennas for point-to-point operation. A 1m dish (Tecom 1m Dish Antenna) was used during testing as this was the highest gain antenna that could be physically located on the test table. File: R27473 Page 14 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 PROPOSED MODIFICATION DETAILS GENERAL This section details the modifications to the Advanced Fibre Communications model mSSR-XCVR 2.4 GHz being proposed. All performance and construction deviations from the characteristics originally reported to the FCC are addressed PRINTED WIRING BOARDS The device originally submitted comprised of a single board (containing digital and rf circuits) and an Antenna Interface Module (AIM). This version effectively splits the original design into two separate circuit boards, one with the rf circuits and the other with the digital circuits. this allows the device to be installed in a smaller chassis which can then be mounted in a pedestal. The modifications were explained to the FCC prior to testing. Richard Fabina of the FCC detailed in his Fax (dated June 18, 1998) that only radiated spurious emissions would be affected by this change and only these emissions would have to be reported to the FCC. File: R27473 Page 15 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 TEST RESULTS TEST DATA ANALYSIS - CONDUCTED Testing was performed for radiated emissions only. The power, bandwidth, processing gain and spectral density have not been affected by the modifications as the circuitry is identical to the original device. This test plan was agreed upon by the FCC through Richard Fabina. TEST DATA ANALYSIS - RADIATED The following measurements were extracted from the data recorded during the radiated electric field emissions scan and represent the highest amplitude peaks relative to the specification limit. The actual test data and correction factors are contained in the appendices of this report. Maximized Radiated Emissions, Peak/Average Readings, Restricted Bands, Sorted by Margin - High Channel (Worst Case Operating Channel) Frequency Level Pol FCC FCC Detector Azimuth Height Comments MHz dBuV/m v/h Limit Margin Pk/Avg degrees meters 2483.500 51.1 v 54.0 -2.9 Avg 0 1.5 Band Edge measurement - noise floor 2483.500 50.3 h 54.0 -3.7 Avg 0 2.0 Band Edge measurement - noise floor 4530.000 47.0 h 54.0 -7.0 Pk 150 1.0 Peak Reading, Average Limit 4530.000 46.7 v 54.0 -7.3 Pk 0 1.0 Peak Reading, Average Limit 2265.000 42.0 v 54.0 -12.0 Avg 180 1.1 2483.500 61.8 h 74.0 -12.2 Pk 0 2.0 Band Edge measurement - noise floor 2483.500 61.6 v 74.0 -12.4 Pk 0 1.5 Band Edge measurement - noise floor 4930.000 41.4 v 54.0 -12.6 Avg 10 1.0 4930.000 37.7 h 54.0 -16.3 Avg 190 1.0 4930.000 50.3 v 74.0 -23.7 Pk 10 1.0 4930.000 49.3 h 74.0 -24.7 Pk 190 1.0 2265.000 47.3 v 74.0 -26.7 Pk 180 1.1 Note: Peak reading RBW=1MHz, VBW=1MHz, Average Reading RBW=1MHz, VBW=10Hz TEST DATA ANALYSIS - ANTENNA CONDUCTED Not Required. The proposed changes will not affect the results already submitted to the FCC for the original device. TEST DATA ANALYSIS - PROCESSING GAIN, POWER AND BANDWIDTH Not Required. The proposed changes will not affect the results already submitted to the FCC for the original device. File: R27473 Page 16 of 16 pages

Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 EXHIBIT A Test Equipment Calibration File: R27473


Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: July 16, 1998 EXHIBIT B Test Measurement Data The following data includes conducted emission measurements of the Advanced Fibre Communications model mSSR-XCVR 2.4 GHz and maximized radiated emissions measurements of the complete system. File: R27473

EMC Test Log Client: Advanced Fibre Communications Date: 7/13/98 Test Engr: Pam/Herb Product: mSSR-XCVR (2.46 GHz) File: T27415 Proj. Eng: Mark Briggs Objective: Final Qualification Site: SVOATS #1 Contact: Scott Pradels Spec: FCC Part 15.247 Page: 1 of 4 Approved: Test Objective The objective of this test session is to perform final qualification testing the EUT defined below relative to Part 15.247 of the FCC rules governing non-licensed intentional radiators. The results from this test are to be submitted to the FCC in order to obtain approvals for a Class II Permissive change to the device which has been approved under FCC ID: NJV 0310-0951 on 5/6/98. The changes made to the device are: The device originally submitted comprised of a single board (containing digital and rf circuits) and an Antenna Interface Module (AIM). This version uses two circuit boards, one with the rf circuits and the other with the digital circuits in place of the single board. Testing was performed for radiated emissions only. The power, bandwidth, processing gain and spectral density have not been affected by the modifications as the circuitry is identical to the original device. This test plan was agreed upon by the FCC through Richard Fabina. Test Summary Run #1 - Maximized Radiated Emissions Scan, Spurious Emissions In Restricted Bands. PASS* Results: §15.207 -2.9 dB Avg @ 2483.5 MHz Vertical Note: * indicates that the difference between the highest amplitude emission with respect to the specification limit is within the measurement uncertainty. This signal was a noise floor measurement - moving the antenna closer to the device under test gave no increase in the measured field strength. Equipment Under Test (EUT) General Description The EUT is a spread spectrum transceiver which is designed to operate in the 2.4 GHz band. Normally, the EUT would be placed on a mast or inside a pedestal during operation. The EUT was treated as table-top equipment during emissions testing to simulate the end user environment. Equipment Under Test (EUT) Manufacturer/Model/Description Serial Number FCC ID Number AFC mSSR-XCVR-A RFl Board 8100-0281 NJV0310-0951 AFC AIM Antenna Interface Module 8100-0951 NJV0310-0951

EMC Test Log Client: Advanced Fibre Communications Date: 7/13/98 Test Engr: Pam/Herb Product: mSSR-XCVR (2.46 GHz) File: T27415 Proj. Eng: Mark Briggs Objective: Final Qualification Site: SVOATS #1 Contact: Scott Pradels Spec: FCC Part 15.247 Page: 2 of 4 Approved: Power Supply and Line Filters The EUT uses the following 48 V power supply contained within the enclosure: Manufacturer/Description Assembly Number Rev. Serial Number AFC mR-PSU 8100-0346 1C AFC01361313 Printed Wiring Boards in EUT The following information was provided by the manufacturer: Manufacturer/Description Assembly # Rev. Serial Number Crystals (MHz) AFC mSSR-XCVR-A RFl Board 81000281 0D AFC01361169 400, 280, Xr and Xt * * Xt is a VCO which varies from 2210 - 2265 MHz, depending upon the actual operating channel. Xr is a VCO which varies from 22250 - 2305 MHz, depending upon the operating channel. Subassemblies in EUT The following information was provided by the manufacturer: Manufacturer/Description Assembly Number Rev. Serial Number AFC Antenna Interface Module (AIM)* 8100-0951 1B AFC013620 AFC RSC/24 Enclosure 0310-1001 2A Nor Serialized The AIM is unmodified from the original submittal. Antenna The EUT is designed to be professionally installed and so utilizes a standard rf connector (N-type). The EUT can be used with a variety of high gain parabolic dish antennas for point-to-point operation. A 1m dish (Tecom 1m Dish Antenna) was used during testing as this was the highest gain antenna that could be physically located on the test table. EUT Enclosure(s) The mSSR-XCVR enclosure is primarily constructed of fabricated sheet steel. It measures approximately 8 cm wide by 8 cm deep by 14 cm high. The AIM enclosure is primarily constructed of fabricated sheet steel. It measures approximately 6 cm wide by 4 cm deep by 10 cm high.

EMC Test Log Client: Advanced Fibre Communications Date: 7/13/98 Test Engr: Pam/Herb Product: mSSR-XCVR (2.46 GHz) File: T27415 Proj. Eng: Mark Briggs Objective: Final Qualification Site: SVOATS #1 Contact: Scott Pradels Spec: FCC Part 15.247 Page: 3 of 4 Approved: EMI Suppression Devices (filters, gaskets, etc.) Description Manufacturer Model None - - Local Support Equipment Manufacturer/Model/Description Serial Number FCC ID Number AFC mR-PSU 48V input Power supply* 8100-0346 N/A AFC mSSR-XCVR-B Digital Board* 8100-0282 N/A AFC mCPU Main CPU Board* 8100-0078 N/A Mean Well S320-48 230V ac to 48Vdc Power supply None N/A Tecom 1m parabolic dish antenna None N/A Items marked * were installed inside the same enclosure as mSSR-XCVR-A circuit board Remote Support Equipment Manufacturer/Model/Description Serial Number FCC ID Number None - - Interface Cabling Cable Description Length (m) From Unit/Port To Unit/Port 50 Coaxial 1.1 SSR-XCVR Input AIM Output 50 Coaxial 1.1 SSR-XCVR Output AIM Input 50 Coaxial 1.1 Antenna AIM Antenna Unshielded 1.5 SSRXCVR Power External power supply supply Test Software The EUT was configured to constantly transmit on either the low (2410 MHz), center (2430 MHz) or high (2460 MHz) channel.

EMC Test Log Client: Advanced Fibre Communications Date: 7/13/98 Test Engr: Pam/Herb Product: mSSR-XCVR (2.46 GHz) File: T27415 Proj. Eng: Mark Briggs Objective: Final Qualification Site: SVOATS #1 Contact: Scott Pradels Spec: FCC Part 15.247 Page: 4 of 4 Approved: General Test Conditions During radiated testing, the EUT was connected to 48V dc via an external AC-DC power supply. The EUT and all local support equipment were located on the turntable for radiated testing and conducted testing. All remote support equipment was located approximately 30 meters from the EUT with all I/O connections running on top of the groundplane. Test Data Tables See attached data

Emissions Test Data Client: Advanced Fibre Communications Date: 7/13/98 Test Engr: Pam/Herb Product: mSSR-XCVR File: T27415 Proj. Engr: Mark Briggs Objective Final Qualification Site: SVOATS #1 Contact: Scott Pradels Spec: FCC Part 15.247 Distance: 3 m Approved: Run #1a: Radiated Emissions - Spurious Emissions In Restricted Bands (High Channel) Frequency Level Pol FCC FCC Detector Azimuth Height Comments MHz dBuV/m v/h Limit Margin Pk/QP/Avg degrees meters 2483.500 51.1 v 54.0 -2.9 Avg 0 1.5 Band Edge measurement - noise floor 2483.500 50.3 h 54.0 -3.7 Avg 0 2.0 Band Edge measurement - noise floor 4530.000 47.0 h 54.0 -7.0 Pk 150 1.0 Peak Reading, Average Limit 4530.000 46.7 v 54.0 -7.3 Pk 0 1.0 Peak Reading, Average Limit 2265.000 42.0 v 54.0 -12.0 Avg 180 1.1 2483.500 61.8 h 74.0 -12.2 Pk 0 2.0 Band Edge measurement - noise floor 2483.500 61.6 v 74.0 -12.4 Pk 0 1.5 Band Edge measurement - noise floor 4930.000 41.4 v 54.0 -12.6 Avg 10 1.0 4930.000 37.7 h 54.0 -16.3 Avg 190 1.0 4930.000 50.3 v 74.0 -23.7 Pk 10 1.0 4930.000 49.3 h 74.0 -24.7 Pk 190 1.0 2265.000 47.3 v 74.0 -26.7 Pk 180 1.1 Note 1: Peak reading RBW=1MHz, VBW=1MHz, Average Reading RBW=1MHz, VBW=10Hz. Run #1b: Radiated Emissions - Spurious Emissions In Restricted Bands (Center Channel) Frequency Level Pol FCC FCC Detector Azimuth Height Comments MHz dBuV/m v/h Limit Margin Pk/QP/Avg degrees meters 4860.000 48.2 v 54.0 -5.8 Pk 0 1.0 Peak Reading, Average Limit 2325.000 47.8 v 54.0 -6.2 Pk 180 1.1 Peak Reading, Average Limit 2325.000 47.4 h 54.0 -6.6 Pk 200 1.3 Peak Reading, Average Limit 4860.000 47.3 h 54.0 -6.8 Pk 160 1.2 Peak Reading, Average Limit 2230.000 45.8 h 54.0 -8.2 Pk 190 1.3 Peak Reading, Average Limit 2230.000 42.2 v 54.0 -11.8 Pk 180 1.0 Peak Reading, Average Limit Run #1c: Radiated Emissions - Spurious Emissions In Restricted Bands (Low Channel) Frequency Level Pol FCC FCC Detector Azimuth Height Comments MHz dBuV/m v/h Limit Margin Pk/QP/Avg degrees meters 2311.000 47.8 h 54.0 -6.2 Avg 155 1.5 4622.000 46.8 v 54.0 -7.2 Pk 200 1.0 Peak Reading, Average Limit 4420.000 45.4 v 54.0 -8.6 Pk 155 1.5 Noise Floor, Peak Reading, Average Limit 2210.000 44.8 v 54.0 -9.3 Pk 150 1.0 Peak Reading, Average Limit 2311.000 43.9 v 54.0 -10.1 Avg 180 1.4 4622.000 42.5 h 54.0 -11.5 Avg 200 1.0 2210.000 38.4 h 54.0 -15.6 Avg 150 1.5 4820.000 37.8 v 54.0 -16.2 Pk 180 1.0 Peak Reading, Average Limit 2311.000 50.9 h 74.0 -23.1 Pk 155 1.5 2311.000 48.8 v 74.0 -25.3 Pk 180 1.4 4622.000 46.4 h 74.0 -27.6 Pk 200 1.0 2210.000 44.7 h 74.0 -29.3 Pk 150 1.5 Note 1: Peak reading RBW=1MHz, VBW=1MHz, Average Reading RBW=1MHz, VBW=10Hz. Page 1


Document Created: 1998-09-30 09:55:04
Document Modified: 1998-09-30 09:55:04
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