S2N-L2500-2Point to Point Radio

Document No. D-L2500-001 L-2500 Users Manual 06/15/05 Version Draft 2 1 Model L-2500 Point to Point Radio System 71.0 to 76.0GHz & 81.0 to 86.0GHz Users Manual 10455 Pacific Center Court www.loeacom.com San Diego, CA. 92121 Sales: 858-922-0030 Document No. D-L2500-001 L-2500 Users Manual 06/15/05 Version Draft 2 2 WARRANTY We warrant that the equipment (other than consumables) being sold to you will be free of defects in design, material or workmanship for a period of twelve (12) months from the date of installation. If the equipment fails to satisfy this warranty, you will promptly notify us of such failure within the warranty period. At our option we will repair or replace the defective equipment. You will not return any equipment or component to us without our prior written authorization. If we are unable to repair or replace the equipment after reasonable efforts, we will, as your exclusive remedy, refund the portion of the purchase price previously paid by you that is attributable to the defective equipment. Notwithstanding the foregoing provisions, we shall have no obligation or responsibility to repair or replace any defective equipment if the defect was caused by: (a) your failure to properly operate or maintain the equipment in accordance with our written instructions, (b) any attempted repair or modification of the equipment that is not performed or authorized in writing by us, (c) any power failure, power surge, fire, water damage, Act of God or other circumstance or event not within our reasonable control, (d) any relocation of equipment not performed or authorized in writing by us, (e) normal wear and tear, or (f) any other act or omission of you, your agents or any other third party except as provided in this Standard Conditions of Quotation. LIMITED WARRANTIES AND DISCLAIMER THE FOREGOING LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED AS TO ANY MATTER, INCLUDING, WITHOUT LIMITATION, THE CONDITION, USE, INSTALLATION, MERCHANTABILITY AND FITNESS FOR USE OF THE PRODUCTS OR SERVICES, OR ANY IMPLIED WARRANTY ARISING OUT OF A COURSE OF DEALING OR OF PERFORMANCE, CUSTOM OR USAGE IN THE TRADE, AND ALL OBLIGATIONS OR LIABILITIES ON THE PART OF COMPANY FOR DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE PRODUCTS OR SERVICES ARE LIMITED ACCORDINGLY. COMPANY SHALL NOT, IN ANY EVENT, BE LIABLE FOR INDIRECT, SPECIAL, EXEMPLARY, INCIDENTAL OR CONSEQUENTIAL DAMAGES (WHETHER SUCH LIABILITY ARISES FROM A CLAIM BASED ON CONTRACT, WARRANTY, TORT OR OTHERWISE), INCLUDING BUT NOT LIMITED TO DAMAGES RESULTING FROM LOSS OF USE, LOSS OF PROFITS OR ANY HARM OR DAMAGE TO PERSONS OR PROPERTY ARISING OUT OF OR IN CONNECTION WITH ANY PRODUCTS OR SERVICES. POST WARRANTY SERVICE AGREEMENT At the expiration of the warranty period, XYZ Corporation will make available to you a one-year service contract covering the equipment. Document No. D-L2500-001 L-2500 Users Manual 06/15/05 Version Draft 2 3 LIMITATION OF LIABILITY Our responsibility for any claims, damages, losses or liabilities arising out of or related to our performance under the Quotation shall not exceed the aggregate consideration paid to us pursuant to the Quotation. In addition, in no event shall we be liable to you, your employees or agents or to any other third party for any indirect, special, exemplary, incidental or consequential damages, including but not limited to damages resulting from loss of use, loss of data, loss of profits or any harm or damage to persons or property arising out of or in connection with the Quotation or any equipment, materials or services provided under the Quotation. FCC NOTICE This equipment complies with the FCC radiation exposure limits set forth for an uncontrolled environment when installed as directed. This equipment should be installed and operated with fixed mounted antennas that are installed such that these antennas will have a minimum of 2m of separation distance between the antenna and all persons during normal operation. This device complies with Part 101 of the FCC Rules. This device is labeled with the following FCC ID number: S2N-L2500-2 PROFESSIONAL INSTALLATION REQUIRED The L-2500 must be installed as a system by experienced antenna installation professionals who are familiar with Radio Frequency (RF) issues such as gains and losses, as well as local building and safety codes. Failure to do so will void the product warranty and may expose the end user to excessive RF hazard. Regulations regarding maximum antenna gains, power output and maximum permissible exposure vary from country to country. It is the responsibility of the end user to operate within the limits of these regulations and to ensure that the professional installers who install this device are aware of these regulations. All antennas are intended to be installed outdoors. Document No. D-L2500-001 L-2500 Users Manual 06/15/05 Version Draft 2 4 MICROWAVE RADIO RADIATION WARNING When installed properly, this product complies with the limits for human exposure to radio frequency (RF) fields adopted by the Federal Communications Commission (FCC). The product is designed so that under normal working conditions, microwave radiation directly from the transceiver is negligible when compared with the permissible limit of continuous daily exposure recommended in the United States by ANSI/IEEE C95.1-1991 (R1997), Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3kHz to 300GHz. Microwave signal levels that give rise to hazardous radiation levels can exist within transmitter power amplifiers, associated RF multiplexers, and antenna systems. Do not disconnect RF coaxial connectors, open microwave units, or break down any microwave screening while the radio equipment is operating. LASER SAFETY NOTICE This product complies with CFR 1040.10 and 1040.11. The product includes a Class I laser utilized as a fiber optic driver. Class I lasers do not emit radiation…

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Response to TCB Findings Tune-up procedure must be provided as an exhibit for licensed transmitters. Please provide the document. Per LOEA - The transceivers are configured in the factory and there are no tune-up requirements during the installation (this is a fixed frequency design) DC voltages and currents in final RF amplifier stage must be specified per 2.1033(c)(8). Per LOEA - There is no final RF amplifier stage in the Tx chain. A Gunn oscillator is the source of the Tx power and it runs off 9.6 volts and draws 200mA. The power level difference between the 73,5 and 83.5 GHz fundamentals must be justified. Please clarify with your client as the filing does not seem to provide power ratings and means of adjusting power levels (if applicable) about the device. It is not clear if this difference is intentional. Further examination of the calibration data of the mixer shows that there is a null within 100MHz of 83.5GHz. Our original mixer correction factor did not account for this null. The report has been updated with the new correction factor. Difficulties in making measurements at the high frequencies (alignment, reflections, etc) may also account for the readings of the 83.5GHz radio being less than that of the 73.5GHz version. Attached is an updated operational description, which indicates the maximum output of the device. 101.111(a)(2)(v), which calls 101.111(a)(2)(ii), requires a mask within the frequency range that is removed 50% to 250% of the authorized bandwidth from center frequency. Please justify/demonstrate how the device complies with the limit according to the mask formula provided in that section. The report has been updated with the mask data. Because mixers were used, we were unable to provide a plot. No emissions were found.

Frequency ranges are corrected to center frequencies. Thank you. Yunus Faziloglu TCB Review Engineer Curtis-Straus LLC

Document No. D-L2500-EP External Photographs 6/01/05 Company Confidential – LOEA Corporation 1 Model L-2500 Point to Point Radio System 71.0 to 76.0GHz & 81.0 to 86.0GHz External Photographs www.loeacom.com 10455 Pacific Center Court San Diego, CA. 92121 858-922-0030 Document No. D-L2500-EP External Photographs 6/01/05 Company Confidential – LOEA Corporation 2 Photo of EUT – Front oblique view Document No. D-L2500-EP External Photographs 6/01/05 Company Confidential – LOEA Corporation 3 Photo of EUT – Side view Document No. D-L2500-EP External Photographs 6/01/05 Company Confidential – LOEA Corporation 4 Photo of EUT – Rear view Document No. D-L2500-EP External Photographs 6/01/05 Company Confidential – LOEA Corporation 5 Photo of EUT – Ancillary equipment (UPS)

Document No. D-L2500-LBL ID Label 6/01/05 Company Confidential – LOEA Corporation 1 Model L-2500 Point to Point Radio System 71.0 to 76.0GHz & 81.0 to 86.0GHz ID Label www.loeacom.com 10455 Pacific Center Court San Diego, CA. 92121 858-922-0030 Document No. D-L2500-LBL ID Label 6/01/05 Company Confidential – LOEA Corporation 2 FCC ID Label The ID labels are shown below. Since there are two transceiver units each operating on a different frequency (an ‘A’ unit and ‘B’ unit) there are two labels to differentiate them. In addition the transceivers can be configured for operation at either GigE or OC-12 data rates. As a result four labels are shown below all with the same FCC ID #. GigE ‘A’ Unit label GigE ‘B’ Unit label Document No. D-L2500-LBL ID Label 6/01/05 Company Confidential – LOEA Corporation 3 OC-12 ‘A’ Unit label OC-12 ‘B’ Unit label The label material is made from G.E. Lexan film, velvet matte with an adhesive backing. Both adhesive and label material will last the lifetime of the product. Document No. D-L2500-LBL ID Label 6/01/05 Company Confidential – LOEA Corporation 4 FCC ID Label Location

Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 1 Model L-2500 Point to Point Radio System 71.0 to 76.0GHz & 81.0 to 86.0GHz Internal Photographs www.loeacom.com 10455 Pacific Center Court San Diego, CA. 92121 858-922-0030 Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 2 Photo of EUT showing service compartment with rear cover removed Photo of EUT showing backside of service compartment housing Service compartment housing Built-in power supply Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 3 Internal photo of EUT with service compartment removed from main housing Power distribution board Control board Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 4 Internal photo of EUT with absorber material removed AGC / Det board Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 5 Internal photo of EUT with AGC/Det board removed showing mmWave circuitry Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 6 Photo of Power distribution board – Top view Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 7 Photo of Power distribution board – Bottom view Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 8 Photo of Control board – Top view Netburner board Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 9 Photo of Control board – Top view with Netburner board removed Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 10 Photo of Netburner board – Bottom view Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 11 Photo of Control board – Bottom view Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 12 Photo of AGC/Det board – Top view Document No. D-L2500-IP Internal Photographs 6/01/05 Company Confidential – LOEA Corporation 13 Photo of AGC/Det board – Bottom view

Maximum Human Exposure Calculation The equation used for calculating the power density at the surface of a parabolic aperture antenna is as follows: S = 4P/A where: S = maximum power density at the antenna surface P = power fed to the antenna A = physical area of the aperture antenna This Application: P = 8.3dBm = 6.76mW A = pi*r 2 = pi*(30.48cm) 2 = 2918.6cm 2 S = 4(6.76mW)/2918.6cm 2 = 0.0093mW/cm 2 Since the surface power density of this product passes the limit of 1mW/cm 2 , then the only distance requirement that applies is the requisite 2m for fixed antennas.

Curtis-Straus LLC is accredited by the American Association for Laboratory Accreditation for the specific scope of accreditation under Certificate Number 1627-01. This report may contain data which is not covered by the A2LA accreditation. _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Test Report Report No EF0429-1 Issue 2 Client Loea Corporation 164 West Street West Hatfield, MA 01088 Phone 1-413-247-9440 FRN 0013420088 Emission Designator K1D4G23 Model L-2500 FCC ID S2N-L2500-2 Equipment Type Licensed Non-Broadcast Station Transmitter Equipment Code TNB Results As detailed within this report Prepared by _____________________ Evan Gould – Test Engineer Authorized by __________________________ Michael Buchholz – EMC Manager Issue Date 8/1/05 Conditions of issue This Test Report is issued subject to the conditions stated in ‘terms and conditions’ section of this report. REPORT: EF0429-1 Issue 2 FCC ID: S2N-L2500-2 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 2 of 19 Table Of Contents Summary......................................................................................................................... 3 Test Methodology............................................................................................................ 3 EUT Configuration........................................................................................................... 4 Fundamental Measurement............................................................................................ 5 Spectral Density.............................................................................................................. 6 Occupied Bandwidth....................................................................................................... 7 Emission Mask................................................................................................................ 9 Radiated Spurious Emissions....................................................................................... 10 AC Line Conducted Emissions...................................................................................... 12 Frequency Stability........................................................................................................ 13 Terms And Conditions................................................................................................... 15 A2LA Accreditation........................................................................................................ 17 REPORT: EF0429-1 Issue 2 FCC ID: S2N-L2500-2 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 3 of 19 Summary This test report supports an application for a licensed transmitter operating pursuant to 47 CFR 101. The product is the Loea Corporation L-2500 Millimeter Wave Radio. It is a transmitter that operates at either 73.5GHz or 83.5GHz depending on whether it is the Lo or Hi version. Test Methodology Radiated emissions testing is performed according to the procedures specified in TIA- 603. Since the device is always installed in one orientation, emissions were maximized by rotating the device around it’s vertical axis as well as varying the test antenna’s height and polarity. Frequency range investigated: 150kHz – 200GHz Measurement distance: 150kHz – 30MHz Conducted 30 – 1000MHz 3m 1 – 18GHz 3m or 1m 18 – 26.5GHz 1m 26.5 – 200GHz 0.1m REPORT: EF0429-1 Issue 2 FCC ID: S2N-L2500-2 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 4 of 19 EUT Configuration EUT Configuration Work Order: F0429 Company: Loea Corporation Company Address: 164 West Street West Hatfield, MA 01088 Contact: John Hutchings Person Present: John Hutchings MNSN EUT: L-2500000117M (83.5GHz radio) L-2500000117F (73.5GHz radio) CyberPower UPS/Surge ProtectorCPS625AVRB1A3T1B06372 EUT Description: Millimeter Wave Radio EUT Max Fre quency: 83.5GHz Support Equipment: MNSN OC12 Generator Surise TelecomSunSet OCxSSOCX12C0346122385 Gigabit Ethernet Generator TektronixGTS1250B010207 EUT Cables: QtyShielded?LengthFerrites AC Power1No6ftNo Fiber pair1N/AN/AN/A Unpopulated EUT Ports: QtyReason DB9 Serial1Setup/Diag BNC AGC1Setup/Diag Ethernet1Not Used Software / Operating Mode Description: EUT was operating in TX and RX modes simultaneously. Both OC12 and Gig-E modulations were tested using pseudorandam data sequences. CW mode was used when needed as well. EUT has only one power level setting available. REPORT: EF0429-1 Issue 2 FCC ID: S2N-L2500-2 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 5 of 19 Fundamental Measurement LIMIT 55dBW (EIRP) [47 CFR 101.113] MEASUREMENTS Output Power (Conducted) Curtis-Straus LLC Date: 3-Jun-05 Engineer: Evan Gould Work Order: F0429 Company: Loea Corp EUT: L-2500 Fundamental Frequency: 73.5 or 83.5GHz Test Site: A Cable: N/A Power Meter: HP 437B Attenuator: N/A Sensor Head: HP W8486A Notes:CW mode AntennaAdjusted 47 CFR 101.113 RadioFrequencyReadingGainReadingEIRP LimitMarginResult (GHz)(dBm)(dBi)(dBW)(dBW)(dB)(Pass/Fail) 73.5GHz73.50012.750.633.355.0-21.7Pass 83.5GHz83.50011.750.932.655.0-22.4Pass REPORT: EF0429-1 Issue 2 FCC ID: S2N-L2500-2 _____________________________________________________________ _________________________________________________________…

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REPORT: EF0429-1 FCC ID: S2N-L2500-2 EXHIBIT: Setup Photos MODEL: L-2500 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 1 of 4 RE Front RE Back REPORT: EF0429-1 FCC ID: S2N-L2500-2 EXHIBIT: Setup Photos MODEL: L-2500 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 2 of 4 Conducted Emissions Conducted Power REPORT: EF0429-1 FCC ID: S2N-L2500-2 EXHIBIT: Setup Photos MODEL: L-2500 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 3 of 4 Occupied Bandwidth Block Down-converter REPORT: EF0429-1 FCC ID: S2N-L2500-2 EXHIBIT: Setup Photos MODEL: L-2500 _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 4 of 4 Frequency Stability