TY7210-129Low Voltage Repeater

20420 Century Boulevard Germantown, MD 20874 (301) 944-2700 (phone) (301) 944-2701 (fax) Test Report Attestation According to testing performed by CURRENT Technologies, LLC, the CT LVR ™ OH 5000g is in compliance with the electromagnetic compatibility requirements defined in FCC Rules, Part 15, Subpart G. Details are shown in the accompanying test report. Date: December 5, 2006

20420 Century Boulevard Germantown, MD 20874 (301) 944-2700 (phone) (301) 944-2701 (fax) April 27, 2007 FEDERAL COMMUNICATIONS COMMISSION Office of Engineering & Technology 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for confidentiality for FCC ID: TY7210-0129 To Whom It May Concern: Pursuant to 47 CFR Sections 0.457 and 0.459, CURRENT Technologies, LLC (“CURRENT”) hereby requests non-disclosure and confidential treatment of the following materials submitted on in support of FCC certification application for FCC ID # TY7210-0129. a. Block Diagram b. Internal Photos c. Operational Description d. Notching Instructions e. Installation Instructions The above materials contain trade secrets and proprietary, technical information that CURRENT would customarily guard from competitors. See 47 C.F.R. § 0.457(d)(2). Disclosure or publication of any portion of this confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. The information in these exhibits is not available to the general public. This information, including that in the internal photos, is not disclosed to third parties except under protection of a confidentiality agreement that prohibits further disclosure. Therefore recipients of this information are constrained by contract from showing the equipment or discussing its operation to anyone not approved by CURRENT. Although the underlying equipment is installed outdoors, all installations (as well as equipment removal and in-situ maintenance) are performed only by certified utility company linemen or contractors, and once installed the equipment resides in the “power space” of utility poles where electric distribution lines are hung. Access to this space is very dangerous and under the National Electric Safety Code is strictly limited to qualified utility workers certified to work within such “power space.” Finally, the underlying equipment is serviceable only by CURRENT or a CURRENT- authorized third party. As a result, the design details of the equipment, including internal photos, are hidden from competitors and protected against public disclosure. The equipment design, as shown in the internal photos, was developed by CURRENT at great expense. Disclosure of this information via the FCC website would convey an unfair and unearned competitive advantage to other companies in this market. CURRENT is entitled to have the information protected pursuant to Worthington Compressors v. Costle, 662 F.2d 45, 51 (D.C. Cir. 1981). Sincerely, Jay Birnbaum Vice President & General Counsel (301) 944-2702 (phone) (301) 944-2701 (fax) [email protected]

CURRENT Technologies, LLC CT LVR ™ OH 5000 External Photos January 23, 2007 1 Photograph EP-1: External Photo of CT LVR OH – View of Top Side CURRENT Technologies, LLC CT LVR ™ OH 5000 External Photos January 23, 2007 2 Photograph EP-2: External Photo of CT LVR OH – View of Bottom Side

Document: 300-0000-0074 ™ Revision: A Date: 1/22/07 Page: 1 of 5 Product Labeling Instruction for CT LVR ™ OH 5000 Document: 300-0000-0074 ™ Revision: A Date: 1/22/07 Page: 2 of 5 REFERENCED DOCUMENTATION: 003-0010-0001 Product Barcode Specification 1.0 GENERAL 1.1 Location Each label shall be applied to the unit where it is easily visible. Label should be applied so that all vertical and/or horizontal markings can be read in the same direction as other labels on the unit. Figure 1 – Location of FCC Label Location of FCC Label Document: 300-0000-0074 ™ Revision: A Date: 1/22/07 Page: 3 of 5 Figure 2 – Location of Product Label 1.2 Markings All human readable markings must be clear and legible when viewed with normal vision at a distance of twelve inches from eye contact. 2.0 ENVIRONMENTAL 2.1 VERIFICATION TEST Verification testing shall consist of rubbing the printed area for a period not to exceed fifteen seconds, with pressure applied with finger, thumb, or common pencil eraser. A minimum thirty seconds cure time, after printing, is required before testing. After testing, the printed area (bars and adjacent spaces) shall be visually examined for clarity and/or distortion. Product Label Document: 300-0000-0074 ™ Revision: A Date: 1/22/07 Page: 4 of 5 2.2 LABEL PRINTER The document provides the label specification for the printer with 8 dots/mm, 300 dpi (minimum) print-head resolution. 2.3 BARCODE DARKNESS The darkness (burn temperature) setting should be optimized using barcode verification equipment. 3.0 CONTENTS OF THE LABEL The Product Barcode Label shall contain the following information. • SERIAL NUMBER – The serial number (S/N) printed on the Product Label has a length of 16 characters and is to be printed in both barcode and human readable form. Refer to document 003-0010-0001 for the serial number scheme. • PRODUCT PART NUMBER (ID) – Part Number of the Bill of Material (BOM). • REVISION LEVEL – The revision level of the BOM. • PRODUCT DESCRIPTION (Name) – The description should be the description on the BOM. • MAC ADDRESS - Where applicable the MAC addresses for North Bound, South Bound and Cable Modem shall be printed on the label. • COUNTRY OF ORIGIN – The country of origin is printed in human readable form only (the country of origin is the location where the final assembly of the IRD is completed). • FCC INFORMATION – Depending on the size of the product label the FCC information can be located on the Product Label or will be a separate label placed on the product. 4.0 LABEL LAYOUT 4.1 FCC LABEL THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. FCC ID: TY7210-0129 3.5 “ 1.0 “ Figure 3 Sample FCC Label Document: 300-0000-0074 ™ Revision: A Date: 1/22/07 Page: 5 of 5 If a label this size is unable to fit on the unit, then the language shown above (Figure 3) will be written in the related instruction manual, and just the FCC identifier or unique identifier will be printed on the label, per Part 15 of the FCC Rules which states “When the device is so small or for such use that it is not practicable to place the statement specified under paragraph (a) of this section on it, the information required by this paragraph shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or. Alternatively, shall be placed on the container in which the device is marketed. However, the FCC identifier or the unique identifier, as appropriate, must be displayed on the device.” 4.2 PRODUCT LABEL 3.5 “ 1.0 “ Figure 4 Sample Product Label Depending on what product you are building the information for the Product ID, description serial number, revision level, MAC Addresses will change. 5.0 LABEL PLACEMENT For placement location of the labels refer to the assembly drawing of that specific product.

CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements December 4, 2006 1 CURRENT Technologies, LLC Report of Measurements CT LVR TM OH 5000 Table of Contents 1. General Information........................................................................................................................ 2 2. Applicable Documents...................................................................................................................... 3 3. Detailed Applicable EMC Requirements and Limits........................................................................ 4 3.1. Conducted Limits...................................................................................................................... 4 3.2. Radiated Limits......................................................................................................................... 4 4. Procedures for Measuring RF Emissions......................................................................................... 5 4.1. AC Power Line Conducted Emissions Measurements.............................................................. 5 4.2. Radiated Emissions Measurements......................................................................................... 5 4.2.1. Radiated Emissions Measurement – 1.705 MHz to 30 MHz................................................ 5 4.2.2. Radiated Emissions Measurement – 30 MHz to 1000 MHz................................................. 6 4.2.2.1. Radiated Emissions Measurement – 30 MHz to 1000 MHz – Stage One............................ 6 4.2.2.2. Radiated Emissions Measurement – 30 MHz to 1000 MHz – Stage Two............................ 7 5. System Test Configuration............................................................................................................... 8 6. Equipment Modifications................................................................................................................. 9 7. Description of the Test Sites.......................................................................................................... 10 8. List of Test Equipment Used.......................................................................................................... 14 9. EMI Test Results............................................................................................................................ 15 9.1. Conducted Emission Data...................................................................................................... 15 9.2. Radiated Emission Data......................................................................................................... 15 CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements December 4, 2006 2 1. General Information Applicant: CURRENT Technologies, LLC Applicant Address: 20420 Century Boulevard Germantown, MD 20874 301-944-2700 Equipment: CT LVR TM OH 5000 Equipment Description: The CT LVR OH 5000 is part of an Access BPL system. It operates on overhead public utility power lines over the low-voltage wires. The CT LVR OH 5000 is used to repeat proprietary low-voltage signals between a subscriber link and a CT Bridge ® OH 5000ml. Test Operator: Steve Seymour Dates of Testing: November 3, 2006 to November 21, 2006 Test Locations: ƒ Washington Laboratories Open Area Test Site (Gaithersburg, Maryland), ƒ CURRENT Technologies Field Research and Test Area (Urbana, Maryland) ƒ CURRENT Technologies Rockville Test Area (Rockville, Maryland) Modes of Operation: ƒ Active: transmitting high-density OFDM signal on Low-Voltage power line (4.4 MHz to 20.8 MHz); Applicable EMC Specification: FCC Part 15 Class of Service: ƒ Class A CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements December 4, 2006 3 2. Applicable Documents Testing of emissions was performed in accordance with FCC requirements. 2.1. Federal Communication Commission (FCC), code of Federal Regulations 47, FCC docket 89-103, Part 15: Radio Frequency Devices, Subpart G, October 2005. 2.2. Federal Communication Commission (FCC), code of Federal Regulations 47, FCC docket 89-103, Part 15: Radio Frequency Devices, Section 15.109(b) and 15.209, October 2001. 2.3. FCC/OET, “FCC Procedure for Measuring Electromagnetic Emissions for Digital Devices”, TP-5, March 1989. 2.4. Federal Communication Commission (FCC), Report and Order, FCC-04-245, Appendix C, Measurement Guidelines for Broadband Over Power Line (BPL) Devices or Carrier Current Systems (CCS) and Certification Requirements for Access BPL Devices, October 2004. 2.5. International Special committee on Radio Interference (CISPR) Publication 16, First Edition 1977, “CISPR Specification for Radio Interference Measuring, Apparatus and Measurement Methods”. 2.6. American National Standard, “Interim Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the range of 9 kHz to 40 GHz”, ANSI C63.4, 2000. CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements December 4, 2006 4 3. Detailed Applicable EMC Requirements and Limits The equipment was evaluated to Federal Communications Commission (FCC) requirements. 3.1. Conducted Limits Conducted emissions limits do not apply to this Access BPL equipment. 3.2. Radiated Limits The following radiated emissions limits apply: Limit of Radiated Emissions Applicable Specification Reference Frequency Range (MHz) Class (μV/m) (dBμV/m) Measurement Distance (m) FCC 15.107(c)(3), 15.109(c), 15.209 1.705 to 30 - 30 29.5 30 30 to 88 A 90 39.1 10 88 to 216 A 150 43.5 10 216 to 960 A 210 46.4 10 FCC 15.109 960 and Above A 300 49.5 10 Notes: 1. The tighter limit shall apply at the edge between two frequency bands 2. Distance refers to the distance in meters from measuring instrument antenna to the closest point of any part of the equipment under test. CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements December 4, 2006 5 4. Procedures for Measuring RF Emissions The fol…

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CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-1 Photograph B-1: Radiated Emissions Test – Washington Laboratories OATS – Front View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-2 Photograph B-2: Radiated Emissions Test – Washington Laboratories OATS – Rear View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-3 Photograph B-3: Radiated Emissions Test – CURRENT Technolo gies Field Research and Test Area, Pole P4- Wide View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-4 Photograph B-4: Radiated Emissions Test – CURRENT Technolo gies Field Research and Test Area, Pole P4- Close View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-5 Photograph B-5: Radiated Emissions Test – CURRENT Technologies Rockville Test Area, Macon Road - Wide View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-6 Photograph B-6: Radiated Emissions Test – CURRENT Technologies Rockville Test Area, Macon Road – Close View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-7 Photograph B-7: Radiated Emissions Te st – CURRENT Technologies Rockville Test Area, Old Drovers Way - Wide View CURRENT Technologies, LLC CT LVR TM OH 5000 Report of Measurements – Appendix B December 4, 2006 B-8 Photograph B-8: Radiated Emissions Te st – CURRENT Technologies Rockville Test Area, Old Drovers Way– Close View