PPS-DL-5800C24Cable Access Radio CPE

PRELIMINARY PRELIMINARY Wireless Bypass DL-5800 5.8 GHz U-NII Wireless CABLE ACCESS SYSTEM Technical & Installation Manual O P E R A T I O N I N S T A L L A T I O N PRELIMINARY PRELIMINARY Proprietary Notice This information and design disclosed herein was originated by and is the property of Wireless Bypass, Inc. Wireless Bypass reserves all patent proprietary design, manufacturing, reproduction use, and sales rights thereto, and to any article disclosed therein, except to the extent rights are expressly granted to others. The foregoing does not apply to vendor proprietary parts. Specifications are typical and subject to change without notice, in order to allow the introduction of design improvements. Wireless Bypass has carefully reviewed the information herein and it is believed to be accurate and reliable. However, no responsibility is assumed for inaccuracies or errors. Use of this information and/or any of our products does not convey to the user any patent rights or licenses. Wireless Bypass reserves the right to change any specifications or information contained herein without notice. Wireless Bypass products are not to be used in life support applications without the expressed written consent of Wireless Bypass. Wireless Bypass 43 Northwestern Drive Salem, N.H. 03079 USA www.wireless-bypass.com Worldwide Sales & Service: TEL: 603-870-6222 FAX 603-870-6279 Copyrighted (c) 2000 Wireless Bypass Salem N.H. 03079 Printed in the U.S.A. PRELIMINARY PRELIMINARY Safety Precautions RF Energy Radiation Warning The radio equipment described in this guide uses radio frequency transmitters. Although the power level is low, the concentrated energy from a directional antenna may pose a health hazard operated incorrectly. All devices must be installed by qualified installation / deployment personnel, and a minimum of 1.5 meters of separation must exist between the device and persons, when the device is operating. The device installers and operators should be aware of the transmitter operating conditions specified in the Wireless Bypass DL-5800 installation manual and other associated user documentation, as well as the antenna co-location requirements of Part 1.1307 (b) (3), of FCC rules, pertaining to RF exposure. Protection from Lightning Article 810 of the US National Electric Department of Energy Handbook 1996 specifies that radio and television lead-in cables must have adequate surge protection at or near the point of entry to the building. The code specifies that any shielded cable from an external antenna must have the shield directly connected to a 10 AWG wire that connects to the building ground electrode. Regulatory Notices: Canada: Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesirable operation of the device. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropic radiated power (EIRP) is not more than that required for successful communication. United States: CAUTION: Modifications to this device not expressly approved by Wireless Bypass may cause the device to exceed regulatory standards and therefore VOID the user’s authority to operate the device. This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause PRELIMINARY PRELIMINARY interference, and (2) this device must accept any interference received, including interference that may cause undesirable operation. PRELIMINARY PRELIMINARY System Description Wireless Bypass Cable Access Radio Systems are high performance, wireless, microwave communication links that provide an efficient solution for Cable Modem data transmission requirements. These systems operate in the unlicensed 5.8 GHz U-NII band between 5.725 & 5.825 GHz. The Wireless Bypass DL-5800 Series U-NII Cable Access Radio enables cable operators to expand their cable service market by delivering high-speed Internet service to customers previously inaccessible with the installed HFC network. The Wireless Bypass system described in this manual consists of a HUB radio frequency unit, and a CPE (Customer Premise Equipment) radio frequency unit. Several different antenna configurations may be described for point-to-point, or point-to-multipoint operation. In multipoint configurations, many CPE’s may be used with one HUB. The HUB connects to the installed HFC network using standard cable drop techniques. The HUB contains all the signal processing necessary to transmit the downstream IP data into the coverage area and insert the upstream data bursts into the HFC network. The CPE is a small radio transceiver installed at the customer site that provides the downstream data and a return connection for the customer’s cable modems to the HFC network. The Antenna system used will be determined by the desired coverage area and network topology. Two basic Antenna systems may be used with the DL-5800: Point-to-Point, and Point-to-Multipoint. DL-5800 distance capability will range from about 2 miles in a Point-to- Multipoint implementation, and up to 20 miles for Point-to-Point. Basic main lobe antenna patterns are show below. ***************INSERT ANTENNA PATTERNS HERE*************** Equipment Design Features Wireless Bypass's radio systems provide patent pending advanced designs, incorporating a high level of circuit integration to achieve lower power consumption per terminal, and higher reliability for longer MTBF. Microprocessor-based intelligent monitoring of vital performance functions provides extensive diagnostics that are summarized to provide a single point red LED indicator, which will illuminate in the event of a malfunction. PRELIMINARY PRELIMINARY The highly integrated design of the Wireless Bypass DL-5800 series radio systems provide the user with a cost-efficient radio that is eas…

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From: Dave Blumberg [[email protected]] Sent: Monday, August 27, 2001 12:21 PM To: Roland W. Gubisch Cc: Jim Carter Subject: FW: FCC Part 15 certification Hello Roland, For the Cable between the radio and antenna, Jim has planned to allow a 3 ft. RG-214 cable without an increase in transmitter power. This would always keep the transmitter power in spec, and represents a decrease in output EIRP by approximately 1.2 dB. For the photo, the inside photo showing the microwave diplexer is the one we have requested confidentiality. Please let me know if there are any further questions. Thank You, Dave Blumberg

Attention: Application Examiner Reviewing Engineer Re: Request for confidentiality per Section 0.459 of FCC Rules Applicant: Wireless Bypass Inc. FCC ID: PPS-DL-5800C24 To whom it may concern, Request is hereby submitted by Wireless Bypass Inc., to withhold from public review certain portions of the application for equipment certification for the referenced FCC identifiers. In particular, the following sections of the application and report are requested to be kept confidential: • Schematics • Detailed Block diagrams • Detailed Operational/Functional Description Rationale for request for confidentiality: These units must be professionally installed, which does not subject or expose the device to user intrusion. In addition, Wireless Bypass has invested considerable time and materials in research and development to produce the referenced product. Disclosure of the confidential portions of this application to competitors would not only give them competitive advantage in developing similar products, but would also disclose successful implementation of unpublished, leading edge technology developed at Wireless Bypass in the area of microwave diplexers. The fee for confidentiality has been submitted along with the fee for certification. If you have questions or need further information, please contact the undersigned. Sincerely, David Blumberg Wireless Bypass VP & COO 603-870-6220

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FCC ID: PPS-DL-5800C24 IC ID: Canada ___________________ This device comp lies with Part 15 of the FCC Rules. Op eration is subject to the following two conditions: (1) This device may not cause harmful int erference, and (2) t his device must accep t any int erference received, including int erference t hat may cause undesired op eration. M odel # DL-5800C24 Wireless By p ass Salem NH USA FCC ID: PPS-DL-5800H24 IC ID: Canada ___________________ This device comp lies with Part 15 of the FCC Rules. Op eration is subject to the following two conditions: (1) This device may not cause harmful int erference, and (2) t his device must accep t any int erference received, including int erference t hat may cause undesired op eration. M odel # DL-5800H24 Wireless By p ass Salem NH USA VHF MON –20 dB VHF / P ower Switch Access

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FCC Part 15 certification Questions from Roland Gubisch @ ITS Relationship between switch programming and RF power output The RF power switch settings are selected such that the maximum peak power emissions with the selected antenna are not exceeded. The switches define a 6-bit control word that sets the output power. Example: a single channel (6 MHz) hub system has a maximum peak power of 24.78 dBm into a 6 dBi antenna. Using a 15 dBi gain antenna requires a reduction in output power of 9 dB or a maximum output power of 15.78 dBm into the antenna. A control word of 110001 (49 decimal) is selected giving an output power of 15.4 dBm into the 15 dBi antenna. All switch settings for the various antennas are calculated in the same fashion. Point-to-multipoint systems use the maximum antenna gain of 6 dBi and point-to- point systems 23 dBi for the maximum antenna gain Output power vs. Control Word -40 -30 -20 -10 0 10 20 30 0 102030405060 Control Word Output Power (dBm ) Peak Power dBm

Wireless Bypass wireless solutions for CMTS and CATV distribution 41 Northwestern Drive, Salem NH 03079 Radio Sales and Support 603-870-6222 603-870-6232 (FAX) www.wireless-bypass.com Statement of Radiofrequency Radiation Exposure Limits 47 CFR Sec. 1.1310 defines the limits for uncontrolled and controlled exposure. For transmitters operating in the 5725 – 5825 MHz frequency band the exposure limits for uncontrolled and controlled exposures are 5 mW/cm 2 and 1 mW/c m 2 respectively. Wireless Bypass offers two configurations of UNII band radio systems, point-to-multipoint (P/MP) and point-to-point (P/P). Each configuration of radio system contains a ‘downstream unit’ designated with an ‘H’ e.g. DL5800H, and an ‘upstream unit’ designated with a ‘C’. The ‘downstream unit’, DL5800H, has a 26 dB transmitter bandwidth of approximately 6 MHz and the ‘upstream unit’, DL5800C, has a 26 dB transmitter bandwidth of approximately 3.2 MHz. The following table gives give the distance from the antenna that the power density is 1 mW/cm 2 and the power density at a distance of 1.5 meters from the antenna. 1.5 meters is required in the Users Manual for uncontrolled distance. Radio SystemMaximum Peak EIRP (dBm) Distance for 1 mW/cm 2 (cm) Power Density at 1.5 meter (mw/cm 2 ) DL5800H P/MP31.789.760.0042 DL5800H P/P48.7869.090.2121 DL5800C P/MP28.057.130.0023 DL5800C P/P45.0550.450.1131 The following is the relevant text from the DL5800 Technical Manual RF Exposure Limits The DL5800 series transceivers and associated antenna shall be installed by qualified personal. Section 1.1310 of the Federal Communication Commission Regulations sets limits on the field strengths and power densities allowable for human exposure. To comply with Radiofrequency exposure requirements, the antennas used for the DL5800 series shall be installed to provide a minimum distance of 1.5 meters where persons may have access. Antenna Warning A label or sign containing the following language shall be placed on or near the antenna and visible from at least 1.5 meters: CAUTION: To comply with RF exposure require ments, this antenna must be installed to provide a separation distance of at least 1.5 meters from all persons .

Configuration Photograph 2’ Parabolic Point-to-Point 28 dBi Gain Configuration Photograph (Continued) 6’ Parabolic Point-to-Point 37.6 dBi Gain Configuration Photograph (Continued) Flat Panel Point-to-Point 23 dBi Gain Configuration Photograph (Continued) Flat Panel Point-to-Multipoint 23 dBi Gain Configuration Photograph (Continued) Flat Panel Point-to-Multipoint 12dBi Gain Configuration Photograph Line-conducted emissions, CPE