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NVRCSI510-04Bidirectional Amplifier

Westell, Inc.
Bidirectional Amplifier - FCC ID NVRCSI510-04 - Westell, Inc.
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Application Details

Equipment Class
AMP - Amplifier
Date of Grant
Jul 01, 2002
Application Purpose
Original Equipment
Date of Application
Jul 01, 2002
Equipment Note
Bidirectional Amplifier
Frequency Range
896.00000000 - 901.00000000
Company
Westell, Inc.
Country
United States

Documents & Files

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Users Manual

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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Parts List/Tune Up Info

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Test Report

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

Model 510SMR 900In-Building Amplifier Installation and Users Manual Cellular Specialties, Inc. DISCLAIMER All information and statements contained herein are accurate to the best of the knowledge of Cellular Specialties, but Cellular Specialties makes no warranty with respect thereto, including without limitation any results which may be obtained from the products described herein or the infringement by such products of any proprietary rights of any persons. Use or application of such information or statements is at the user's sole risk, without any liability on the part of Cellular Specialties, Inc. Nothing herein shall be construed as license or of recommendation for use, which infringes upon any proprietary rights of any person. Product material and specifications are subject to change without notice. All sales of the product or products described herein are subject to Cellular Specialties' standard terms of sale and the specific terms of any particular sale. The serial number may be found on the label on the rear panel of the unit. For your convenience, note this number below, and retain this manual, along with proof of purchase , to serve as a permanent record of your purchase in the event of a theft, or for future reference. MODEL NUMBER NAME OF COMPANY DATE OF PURCHASE 510 SERIAL NUMBER FCC ID NVRCSI510-04 This device complies with Parts 90 and 2 of the FCC Rules. MANUAL510SMR900 REV 0 960-1003-900 2 TABLE OF CONTENTS 1.0 SAFETY GUIDELINES 3 2.0 PRODUCT DESCRIPTION 4 MECHANICAL OUTLINE DRAWING 5 3.0 GENERAL SPECIFICATIONS 6 4.0 INSTALLATION 7 5.0 AMPLIFIER ADJUSTMENT 9 6.0 TROUBLESHOOTING 10 MANUAL510SMR900 REV 0 960-1003-900 3 SAFETY GUIDELINES ¾ GROUNDING This amplifier system is designed to operate from single-phase 120VAC power and should always be operated with both the neutral and ground wires properly connected. Do not remove or otherwise alter the grounding lug on the power cord. ¾ EXPLOSIVE ATMOSPHERES This product has an integral circuit breaker, which may cause an electrical flash if the breaker should reset. To avoid explosion or fire, do not operate this product in the presence of flammable gases or fumes. ¾ LIGHTNING DANGER Do not install or make adjustments to this unit during an electrical storm. ¾ NO USER SERVICEABLE PARTS INSIDE HAZARDOUS VOLTAGES ARE PRESENT WHEN THE COVER IS REMOVED. Opening the chassis will void your warranty. If you suspect a malfunction with this product, call your dealer or the Cellular Specialties Support Line at (603) 626-6677. ! The general safety information in this guideline applies to both operating and service personnel. Specific warnings and cautions will be found in other parts of this manual where they apply, but may not appear in this summary. Failure to comply with these precautions or specific warnings elsewhere in the manual violates safety standards of design, manufacture, and intended use of equipment. Cellular Specialties, Inc. assumes no liability for the customer's failure to comply with these requirements. 1.0 MANUAL510SMR900 REV 0 960-1003-900 4 PRODUCT DESCRIPTION Cellular Specialties, Inc. developed the Model 510 smr900 Bi-Directional Amplifier (BDA) for use in enclosed structures where sufficient signal from local cell sites to operate cell phones was unavailable within the building. It is necessary that sufficient signal be available on the roof of the structure. The BDA is connected to an external antenna, usually on the roof, and to one or more internal antennas placed strategically throughout the area where phone service is desired. The external antenna is usually a directional type such as a "Yagi" however an omni-directional antenna may be used when the building is located in close proximity to one or more cell sites. Internal antennas are usually omni-directional although various other types may be used for certain installations. The BDA amplifies both the "uplink" (phone to tower) and "downlink" (tower to phone) signals thus facilitating communications to and from the local cell site. There are four amplification stages on the downlink and four on the uplink for a total of 60 dB nominal gain for each link. Both links have manual gain control settings accessed through DIP switches on the top of the unit plus an AGC control for both the uplink and downlink. There are LED indicators for power on, transmitter on, uplink overload and downlink overload. An automatic amplifier safety shutdown circuit is also present which will disable the transmitters for ten seconds should the uplink or downlink overloads be reached to prevent excessive intermodulation and oscillation. 2.0 MANUAL510SMR900 REV 0 960-1003-900 5 +5VDC GND (FCC Label) (Serial No.) 2 AMP MANUAL510SMR900 REV 0 960-1003-900 6 GENERAL SPECIFICATIONS All specifications stated as typical unless otherwise noted. Cellular Specialties, Inc. reserves the right to change these specifications at any time without notice. 3.0 Uplink (Phone to Tower) Downlink (Tower to Phone) Frequency 896 – 901 MHz 935 – 940 MHz Pass Band Ripple ± 2 dB ± 2 dB Gain @ Zero Attenuation 60 dB 60 dB Gain Adjustment Range -28dB -28dB Linear Output Power (typical)* +27 dBm +27 dBm Noise Figure (max) 5.5dB 5.5dB Maximum Input Power** +10 dBm +10 dBm VSWR 2.0:1 Max Propagation Delay <250 nsec. Impedance 50 Ohms Connectors ‘N’ Female Power Requirements 120 VAC @ 500mA Size 14” x 11.5” x 4.5” Weight 8.8 Lbs., 4 kg Operating Temperature -22 to +118°F, -30 to +48°C Indicator LEDs Power, Transmitter On, Uplink Overload, Downlink Overload Controls Power switch with fuse, AGC switch, Uplink and Downlink attenuation switches 0 - 28dB in 4 dB steps. NOTES * Maximum total output power without exceeding the FCC allowable emissions of –13 dBm. ** Maximum safe input power at maximum gain with no damage. MANUAL510SMR900 REV 0 960-1003-900 7 INSTALLATION CSI recommends that all BDA installations be coordinated through the local wireless provider. Note: The Installer should refer to the Safety Precautions, …

Text truncated - open the document above for the full version.

Cover Letter(s)

May 30, 2002 Federal Communications Commission Office of Engineering and Technology 7435 Oakland Mills Rd. Columbia, MD 21046 Subject: Request for Confidentiality Dear Sir or Madam: Cellular Specialties, Inc. respectfully requests that the schematic diagrams, block diagram, and circuit descriptions submitted with the application for certification under FCC ID NVRCSI510-04 be withheld from public disclosure. This request is made under the provisions of Section 0.457 (d) of the Commission’s rules and Section 0.552 (b) (4) of the Freedom of Information Act. This product has been developed at considerable expense, and disclosure of this information would place Cellular Specialties, Inc. at a competitive disadvantage. Thank you for your attention to this matter. Sincerely yours, Donald C. Mills Vice President, System Products

Cover Letter(s)

Evaluation of the CSI Model 510 SMR900 BDA For Compliance with FCC Guidelines For Human Exposure to Radio Frequency Electromagnetic Fields 30 May 2002 General The CSI Model 510 SMR900 Bi-directional amplifier is considered to be a “mobile” device operating in the Land Mobile Service authorized under part 90. As such, the equipment is required to be evaluated for RF exposure if operated below 1.5 GHz with an effective radiated power (ERP) of 1.5 watts or more, as defined in 2.1091 of FCC rules. Downlink For the downlink portion of the Model 510 SMR900 BDA, the maximum rated output power is not greater than +28dbm (631 mW). As stated in the Model 510 SMR900 Manual, the maximum authorized antenna gain is 3 dBi, corresponding to a typical Omni-Directional antenna. Neglecting cable losses, the worst-case EIRP will be 1.26 watts or an ERP of 0.77 watts, (ERP=EIRP/1.64). This is well below the 1.5 watts and therefore excludes the downlink from routine evaluation. The Cautions in the Model 510 SMR900 manual clearly define the antenna selection and installation criteria in order to maintain a minimum 20-centimeter separation. Uplink For the uplink portion of the BDA, the maximum rated output power is not greater than +28 dbm (631 mW). As stated in the Model 510 SMR900 Manual, the maximum authorized antenna gain is 3 dBi, corresponding to a typical Omni-Directional antenna. Neglecting cable losses, the worst case EIRP will be 1.26 watts, or an ERP of 0.77 watts (ERP = EIRP / 1.64). This is well below the 1.5 watts and therefore excludes the uplink from routine evaluation. The Cautions in the Model 510 SMR900 manual clearly define the antenna selection and installation criteria required to maintain a minimum 20-centimeter separation.

ID Label/Location Info

FCC ID Label for Model 510 SMR900 Amplifier: FCC ID NVRCSI510-04 This device complies with Parts 90 and 2 of the FCC Rules.

Parts List/Tune Up Info

May 7, 2001 Mr. Scott Wentworth Retlif Laboratories 101 New Boston Rd. Goffstown, NH 03045 Re: Adjustment of the Model 510 In-building Amplifier in the Field The CSI Model 510 In-Building Amplifier offers only adjustment of attenuation (below its factory-set maximum gain level) to the technician during installation and maintenance activities. This adjustment is dependent on the physical environment in which the amplifier is to be installed and is described in the Installation and Users Manual. This is the only adjustment accessible without opening the amplifier. Frequency response and gain thresholds are factory set and in no circumstance are they to be adjusted in the field. Regards, Donald C. Mills Vice President, System Products

Contact Information

Applicant

Joseph K Gage(Compliance Engineer)
[email protected]630-375-4724Fax: 630-375-4938

Technical Contact

Retlif Testing LaboritoriesScott Wentworth
[email protected]603 497-4600

101 New Boston Road · Goffstown, New Hampshire · United States

Non-Technical Contact

Retlif Testing LaboritoriesScott Wentworth
[email protected]603 497-4600

Test Firm

Retlif Testing LaboratoriesScott Wentworth
[email protected]603-497-4600Fax: 603-497-5281

Technical Specifications

#Rule PartsFrequency RangePower OutputEmission
29896 MHz - 901 MHz458.00 mWDXW
Confidentiality
Long Term
Grant Notes
The outdoor and indoor antennas used for the EXTENDER transmitter must not exceed 3dBi gain and must be installed to provide a seperation distance of 20cm or more from persons to satisfy MPE categorial exclusion requirements fo 2.1091. Approved for TDMA operation only.

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