TY7210-0163URD-A OTP

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 OTP ™ URD 5000 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: July 16, 2007

20420 Century Boulevard Germantown, MD 20874 (301) 944-2700 (phone) (301) 944-2701 (fax) July 16, 2007 FEDERAL COMMUNICATIONS COMMISSION Office of Engineering & Technology 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for confidentiality for FCC ID: TY7210-0163 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 in support of FCC certification application for FCC ID # TY7210-0163. a. Block Diagram b. Internal Photos c. Operational Description d. Installation Guide 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 OTP ™ OH 5000 External Photos January 23, 2007 1 Photograph EP-1: External Photo of CT OTP – View of Front CURRENT Technologies, LLC CT OTP ™ OH 5000 External Photos January 23, 2007 2 Photograph EP-2: External Photo of CT OTP – View of Top Side with labeled connectors CURRENT Technologies, LLC CT OTP ™ OH 5000 External Photos January 23, 2007 3 Photograph EP-3: External Photo of CT OTP – View of Bottom Side CURRENT Technologies, LLC CT OTP ™ OH 5000 External Photos January 23, 2007 4 Photograph EP-4: External Photo of CT OTP – View of Product Label Side CURRENT Technologies, LLC CT OTP ™ OH 5000 External Photos January 23, 2007 5 Photograph EP-5: External Photo of CT OTP – View of Expansion Port Side CURRENT Technologies, LLC CT OTP ™ OH 5000 External Photos January 23, 2007 6 Photograph EP-6: External Photo of CT OTP – View of Expansion Port Side with Expansion Side exposed CURRENT Technologies, LLC CT OTP ™ OH 5000 External Photos January 23, 2007 7 Photograph EP-7: External Photo of CT OTP – View of Back

Document: 300-0000-00xx ™ Revision: A Date: 11/2/06 Page: 1 of 5 Product Labeling Instruction for URD Network Elements APPROVALS TITLE SIGNATURE DATE ORIGINATOR Matt Malagari 11/2/06 MANAGEMENT Neil Donnelly 11/2/06 OPERATIONS Matt Malagari 11/2/06 CM Jim Oestereich 11/2/06 Document: 300-0000-00xx ™ Revision: A Date: 11/2/06 Page: 2 of 5 REFERENCED DOCUMENTATION: 003-0010-0001 Product Barcode Specification 210-0061-000x CT Bridge® URD 210-0063-000x CT OTP (TM) URD 210-0062-000x CT LVR(TM) URD 1.0 General 1.1 Location Each label shall be applied to the unit at the location indicated in Figures 1 and 2, below. 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 Document: 300-0000-00xx ™ Revision: A Date: 11/2/06 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. 2.2 LABEL PRINTER The document provides the label specification for the printer with 8 dots/mm, 300 dpi (minimum) print-head resolution. Document: 300-0000-00xx ™ Revision: A Date: 11/2/06 Page: 4 of 5 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: TY7210-0163 3.5 “ 1.0 “ Figure 3 Sample FCC Label Document: 300-0000-00xx ™ Revision: A Date: 11/2/06 Page: 5 of 5 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. REVISION HISTORY ECO Revision Effective Date Description of change and pages affected A 11/22/06 Initial Release

CURRENT Technologies, LLC CT OTP ™ URD 5000 Report of Measurements July 16, 2007 1 CURRENT Technologies, LLC Report of Measurements CT OTP ™ URD 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 – 29.7 MHz to 50 MHz.................................................. 5 4.2.2. Radiated Emissions Measurement – 50 MHz to 1000 MHz................................................. 6 4.2.2.1. Radiated Emissions Measurement – 50 MHz to 1000 MHz – Stage One............................ 6 4.2.2.2. Radiated Emissions Measurement – 50 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 OTP ™ URD 5000 Report of Measurements July 16, 2007 2 1. General Information Applicant: CURRENT Technologies, LLC Applicant Address: 20420 Century Boulevard Germantown, MD 20874 301-944-2700 Equipment: CT OTP ™ URD 5000 Equipment Description: The CT OTP URD 5000 is part of an Access BPL system. It operates on public utility power lines over medium-voltage wires and is installed at utility riser poles where overhead wires are used to feed underground systems. The CT OTP is the primary device that connects the BPL system to a local point of presence; aggregating and forwarding the data traffic from its downstream CT Bridges ® . Each CT OTP has four interfaces: a backhaul interface to a fiber-optic connection and three medium-voltage interfaces through CT Couplers ® to the MV primary URD cables. Each medium-voltage interface operates in a different frequency band or channel. Test Operator: Steve Seymour Dates of Testing: October 27, 2005 to August 3, 2006 Test Locations: ƒ CURRENT Technologies Orchard Hills Test Area – Riser Pole (North Potomac, Maryland) ƒ CURRENT Technologies Urbana Test Area – Riser 1 (Urbana, Maryland) ƒ CURRENT Technologies Urbana Test Area – Riser 2 (Urbana, Maryland) ƒ Washington Laboratories Open Area Test Site (Gaithersburg, Maryland) Modes of Operation: ƒ Downstream MV1 (transmitting high-density QAM signal on MV wire, 29.7 MHz to 35.7 MHz), ƒ Downstream MV2 (transmitting high-density QAM signal on MV wire, 36.85 MHz to 42.85 MHz), ƒ Downstream MV3 (transmitting high-density QAM signal on MV wire, 44.0 MHz to 50.0 MHz), ƒ Lab Normal (powered up) Applicable EMC Specification: FCC Part 15, Subpart G Class of Service: ƒ Class A CURRENT Technologies, LLC CT OTP ™ URD 5000 Report of Measurements July 16, 2007 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 OTP ™ URD 5000 Report of Measurements July 16, 2007 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 l…

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CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix A November 17, 2006 A-1 Appendix A – Radiated and Conducted Emissions Measurement Data A.1 Conducted Emissions Data Conducted emissions limits do not apply to this Access BPL equipment. A.2 Radiated Emissions Data A.2.1 1.705 MHz to 30 MHz Radiated emissions limits in this frequency range do not apply to this Access BPL equipment. A.2.2 29.7 MHz to 50 MHz Date: July 31, 2006 EUT: CT OTP TM URD 5000 (S/N: 101157960000042D) Location: CURRENT Technologies Quince Orchard Riser Mode: Downstream MV (transmitting high-density QAM signals on MV wire, 29.7 MHz to 50.0 MHz) Frequency (MHz) Antenna Location and Polarity Antenna Height (m) QP Level Measured on Analyzer (dBμV/m) Measurement Distance (m) Distance Correction Factor to 10m (dB) QP Level Corrected to 10m (dBμV/m) 10m Limit (dBμV/m) Margin (dB) 33.12 R1.9m vertical 1.0 35.1 12.64 2.03 37.13 39.08 -1.9 33.05 C0.0m vertical 1.0 35.0 12.50 1.94 36.94 39.08 -2.1 33.16 L7.6m vertical 1.0 33.5 14.63 3.30 36.80 39.08 -2.3 45.17 L3.8m vertical 1.0 33.7 13.06 2.32 36.02 39.08 -3.1 45.19 L7.6m vertical 1.0 32.6 14.63 3.30 35.90 39.08 -3.2 39.34 R3.8m vertical 1.0 32.5 13.06 2.32 34.82 39.08 -4.3 38.79 R1.9m vertical 1.0 32.1 12.64 2.03 34.13 39.08 -4.9 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix A November 17, 2006 A-2 Date: August 2, 2006 EUT: CT OTP URD 5000 (S/N: 101164C600000956) Location: CURRENT Technologies Urbana Farm Riser 1 Mode: Downstream MV (transmitting high-density QAM signals on MV wire, 29.7 MHz to 50.0 MHz) Frequency (MHz) Antenna Location and Polarity Antenna Height (m) QP Level Measured on Analyzer (dBμV/m) Measurement Distance (m) Distance Correction Factor to 10m (dB) QP Level Corrected to 10m (dBμV/m) 10m Limit (dBμV/m) Margin (dB) 45.87 Right 5.7m vertical 1.0 37.2 11.51 1.22 38.42 39.08 -0.7 32.53 Right 3.8m vertical 1.0 37.7 10.70 0.59 38.29 39.08 -0.8 38.48 Right 3.8m vertical 1.0 37.7 10.70 0.59 38.29 39.08 -0.8 32.52 Left 5.7m vertical 1.0 36.6 11.51 1.22 37.82 39.08 -1.3 47.63 Left 5.7m vertical 1.0 36.4 11.51 1.22 37.62 39.08 -1.5 47.63 Left 3.8m vertical 1.0 37.0 10.70 0.59 37.59 39.08 -1.5 40.33 Right 3.8m vertical 1.0 36.9 10.70 0.59 37.49 39.08 -1.6 47.62 Left 7.6m vertical 1.0 35.9 11.98 1.57 37.47 39.08 -1.6 32.53 Right 5.7m vertical 1.0 36.2 11.51 1.22 37.42 39.08 -1.7 45.73 Center 0m vertical 1.0 37.4 10.00 0.00 37.40 39.08 -1.7 45.84 Left 1.9m vertical 1.0 37.2 10.18 0.15 37.35 39.08 -1.7 45.86 Right 3.8m vertical 1.0 36.6 10.70 0.59 37.19 39.08 -1.9 32.50 Right 1.9m vertical 1.0 36.6 10.18 0.15 36.75 39.08 -2.3 32.52 Left 7.6m vertical 1.0 34.7 11.98 1.57 36.27 39.08 -2.8 32.53 Left 3.8m vertical 1.0 35.5 10.70 0.59 36.09 39.08 -3.0 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix A November 17, 2006 A-3 Date: August 3, 2006 EUT: CT OTP URD 5000 (S/N: 101164C600000956) Location: CURRENT Technologies Urbana Farm Riser 2 Mode: Downstream MV (transmitting high-density QAM signals on MV wire, 29.7 MHz to 50.0 MHz) Frequency (MHz) Antenna Location and Polarity Antenna Height (m) QP Level Measured on Analyzer (dBμV/m) Measurement Distance (m) Distance Correction Factor to 10m (dB) QP Level Corrected to 10m (dBμV/m) 10m Limit (dBμV/m) Margin (dB) 41.04 Left 1.9m vertical 1.0 38.6 10.18 0.15 38.75 39.08 -0.3 40.91 Center 0m vertical 1.0 38.7 10.00 0.00 38.70 39.08 -0.4 33.64 Left 5.7m vertical 1.0 36.7 11.51 1.22 37.92 39.08 -1.2 40.94 Right 5.7m vertical 1.0 36.6 11.51 1.22 37.82 39.08 -1.3 41.03 Left 7.6m vertical 1.0 35.6 12.56 1.98 37.58 39.08 -1.5 40.88 Right 7.6m vertical 1.0 35.4 12.56 1.98 37.38 39.08 -1.7 46.03 Left 3.8m vertical 1.0 36.7 10.70 0.59 37.29 39.08 -1.8 33.62 Right 3.8m vertical 1.0 36.5 10.70 0.59 37.09 39.08 -2.0 37.47 Right 3.8m vertical 1.0 36.4 10.70 0.59 36.99 39.08 -2.1 33.57 Left 7.6m vertical 1.0 34.8 12.56 1.98 36.78 39.08 -2.3 46.07 Center 0m vertical 1.0 36.7 10.00 0.00 36.70 39.08 -2.4 33.80 Right 5.7m vertical 1.0 35.2 11.51 1.22 36.42 39.08 -2.7 41.01 Left 3.8m vertical 1.0 35.8 10.70 0.59 36.39 39.08 -2.7 31.98 Left 5.7m vertical 1.0 35.0 11.51 1.22 36.22 39.08 -2.9 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix A November 17, 2006 A-4 A.2.3 50 MHz to 1000 MHz Date: October 27, 2005 EUT: CT OTP URD 5000 (S/N: 101156E000000001) Location: Washington Laboratories Open Area Test Site Mode: Lab Normal (powered up) Vertical Polarity: Frequency (MHz) Antenna Location Antenna Height (m) Peak Level Measured on Analyzer (dBμV/m) Measurement Distance (m) Distance Correction Factor to 10m (dB) Peak Level Corrected to 10m (dBμV/m) 10m Limit (dBμV/m) Margin (dB) 52.00 1.0 28.0 3.0 -10.5 17.5 39.1 -21.6 42.43 27.7 3.0 -10.5 17.2 39.1 -21.9 109.72 275 1.0 15.6 3.0 -10.5 5.1 43.5 -38.4 400.00 180 1.0 27.9 3.0 -10.5 17.4 46.4 -29.0 Horizontal Polarity: Frequency (MHz) Antenna Location Antenna Height (m) Peak Level Measured on Analyzer (dBμV/m) Measurement Distance (m) Distance Correction Factor to 10m (dB) Peak Level Corrected to 10m (dBμV/m) 10m Limit (dBμV/m) Margin (dB) 144.49 226 3.5 22.0 3.0 -10.5 11.5 43.5 -32.0 145.09 226 3.5 20.6 3.0 -10.5 10.1 43.5 -33.4 146.72 226 3.5 20.1 3.0 -10.5 9.6 43.5 -33.9 148.06 226 3.5 22.0 3.0 -10.5 11.5 43.5 -32.0 148.23 226 3.5 21.7 3.0 -10.5 11.2 43.5 -32.3 148.42 226 3.5 21.6 3.0 -10.5 11.1 43.5 -32.4 148.59 226 3.5 21.4 3.0 -10.5 10.9 43.5 -32.6 148.80 226 3.5 21.3 3.0 -10.5 10.8 43.5 -32.7 400.00 336 3.5 28.0 3.0 -10.5 17.5 46.4 -28.9 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix A November 17, 2006 A-5 Date: January 5, 2006 EUT: CT OTP URD 5000 (S/N: 101157960000042D) Location: CURRENT Technologies Quince Orchard Riser Mode: Downstream MV (transmitting high-density QAM signals on MV wire, 29.7 MHz to 50.0 MHz) Vertical Polarity: Frequency (MHz) Antenna Location Antenna Height (m) Peak Level Measured on Analyzer (dBμV/m) Measurement Distance (m) Di…

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CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-1 Photograph B-1: Test Site Photo – CURRENT Technologies Orchard Hills Riser – View 1 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-2 Photograph B-2: Test Site Photo – CURRENT Technologies Orchard Hills Riser – View 2 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-3 Photograph B-3: Test Site Photo – CURRENT Technologies Urbana Farm Riser 1 – View 1 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-4 Photograph B-4: Test Site Photo – CURRENT Technologies Urbana Farm Riser 1 – View 2 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-5 Photograph B-5: Test Site Photo – CURRENT Technologies Urbana Farm Riser 2 – View 1 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-6 Photograph B-6: Test Site Photo – CURRENT Technologies Urbana Farm Riser 2 – View 2 CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-7 Photograph B-7: Test Site Photo – Washington Lab – CT OTP TM URD 5000 – Front View CURRENT Technologies, LLC CT OTP TM URD 5000 Report of Measurements – Appendix B November 17, 2006 B-8 Photograph B-8: Test Site Photo – Washington Lab – CT OTP TM URD 5000 – Rear View