Modular Request

FCC ID: QZC-EA2G

Cover Letter(s)

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FCCID_1492126

Federal Communications Commission Authorization and Evaluation Division Elster Solutions 208 S Rogers Lane Re: FCC ID: QZC-EA2G Raleigh, NC 27610-2144 United States June 13, 2011 T +1 919 212 4800 F +1 919 250 5486 www.elster.com The purpose of this letter is to request limited modular approval of the Elster Solutions Energy Axis Gas Module 2.0, Model EA2G, printed circuit board assembly, which operates as a frequency-hopping spread-spectrum transceiver for automatic meter reading in the 902-928 MHz ISM band under the provisions of FCC Part 15.247. The EA2G is designed to be used with AMCO and other gas meters. To address the specific numbered items of Public Notice DA 00-1407: 1. The EA2G board incorporates a single shield over the wireless transceiver IC and RF Front End module. The shield frame is soldered to the printed-circuit board and a snap-on shield lid is applied. The bottom of the shield is enclosed by a copper plane that is part of the printed-circuit board. 2. The EA2G transmitter incorporates digital buffers on the data inputs, which are part of the transceiver IC. The peak modulation is set by the firmware that is stored within the transceiver IC. The data rate is set by the same stored firmware. For this reason, over-driving the modulation input, or applying excessive data rates to the data input cannot produce over-modulation. 3. The EA2G has no power supply regulation, per se. It receives unregulated power from an internal source, a 3.6 volt Lithium Thionyl Chloride battery. The battery and printed circuit board assembly are potted in the module housing and therefore the EA2G transmitter power cannot be varied once it is set and measured at the time of manufacture. 4. Antennas. The EA2G has an integrated printed circuit board antenna that is inaccessible from outside the module housing due to the potting compound encapsulate with which it is filled. 5. The EA2G module is intended to be installed in AMCO natural gas meters and metering equipment supplied by Elster Solutions. The module has been tested in representative configurations. 6. The EA2G has a label to identify the module’s FCC ID. This label is silkscreen printed on the EA2G printed circuit board assembly and is thus permanent. Additionally, the FCC ID appears on the front-panel nameplate of Elster Solutions gas meters and devices that contain the EA2G module. 7. The EA2G complies and is certified for compliance with all of the applicable provisions of FCC Part 15.247 for frequency-hopping spread-spectrum devices. 8. The EA2G is a low-power (250 mW) device and operates with a low duty cycle.

9. The EA2G has been demonstrated and certified to comply with the MPE RF exposure requirements for mobile devices. Installation and operating instructions specify the required minimum distance from humans for installed gas meters. Respectfully, John Holt RF Engineer Telephone 919-250-5557 e-mail: John.Holt@us.elster.com


Document Created: 2011-06-14 12:09:21
Document Modified: 2011-06-14 12:09:21
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