LLB11001LLB11001 METER TRANSCEIVER UNIT

ACLARA RF SYSTEMS Former HEXAGRAM, Inc. 30400 Solon Road. Solon, OH 44139 440-528-7200 September 22, 2011 Users Manual FCC ID: LLB11001 The LLB11001 has no user adjustment or controls and are installed by factories trained personnel at the manufacturing facility .Aclara RF Systems formally Hexagram LLB11001 devices are shipped to the customer in the sealed LLB11001 enclosures. Thus, NO operational access can be made in the field, without breaking the factory sealed enclosure. The FCC wants you to know..... This equipment has been tested and complies with Part 15 and Part 90 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference. This equipment generates, uses and can radiate radio frequency energy, and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, try to correct the interference by one or more of the following measures: • Reorient or relocate the equipment. • Increase the separation distance between the affected equipment and receiver. • Consult Hexagram, Inc. for help. Any changes or modifications to this equipment not expressly approved by the Hexagram, Inc. could void the authorization to operate the equipment. FCC RF Exposure Guidelines Hexagram’s low power RF devices and their antennas must be fixed- mounted on indoor or outdoor permanent structure(s) providing a separation distance of at least 20 cm from all persons during normal operation. This device is not designed (and it has no external connection) to operate in conjunction with any other antennas or transmitters. No other operating instructions for satisfying RF exposure compliance are needed. This unit has no user or installer serviceable parts, and requires no field adjustment or calibration. Units are sealed at the factory, and disruption of this seal could void the authorization to operate the equipment. Sincerely, Larry Murphy Director of Engineering 440-528-7200 [email protected]

ACLARA RF SYSTEMS Former HEXAGRAM, Inc. 30400 Solon Road. Solon, OH 44139 440-528-7200 September 22, 2011 Federal Communications Commission Office of Engineering and Technology Equipment Approval Services RE: Application for obtaining a transmitter approval Attached Application Form 731 FCC ID: LLB11001 Dear Sir or Madam: Aclara RF Systems, Former Hexagram Inc. wishes to obtain approval for a telemetry transceiver with FCC ID LLB10001. The LLB11001 transceiver is used to transmit data from a utility meter to a data collection unit. The LLB11001 Transceiver device is the 2-way communication device, which includes a transmitter and a receiver. Complete information about LLB11001 device is documented in the attached application documentation including schematic, bill of material, photographs, block diagram, user manual, operation description, The LLB11001 transmitter was tested for conformance to the technical requirements of 90.201 Subpart I- General Technical Standards. Results of tests are attached to this application. The LLB11001 was found to comply with all technical requirements of 90.210. Sincerely, Larry Murphy Director of Engineering 440-528-7200 [email protected]

ACLARA RF SYSTEMS Formally HEXAGRAM, Inc. 30400 Solon Road. Solon, OH 44139 440-528-7200 September 22, 2011 Confidentially Letter Response: CONFIDENTIALITY FCC ID: LLB11001 The LLB11001 device is sealed by means of a hot-plate welding operation. This is an assembly step performed during the manufacture of the device. This operation consists of:  Applying heat to each half of the plastic enclosure such that the perimeter of each half of the enclosure is melted  Aligning the two enclosure halves and applying pressure such that the melted areas of each part come in contact with each other  Allowing the melted plastic to re-solidify, thus yielding a sealed enclosure No additional materials are used in the hot-plate welding operation; the seal is formed by the melting and re-solidifying of the plastic (polypropylene, in this instance). The indicators of destruction caused by opening the enclosure are visual. The seal that forms is sufficiently strong to prevent the seal being broken by hand; mechanical means (band saw, hot knife, etc.) are typically necessary. The enclosed picture below shows an attempt made to destroy the sealing and view the contents. It clearly shows the destruction made and shows that the device would not operate in the environment if it were to be opened. Due to the above mentioned reasons please grant our confidentiality request. Sincerely, Larry Murphy Director of Engineering Aclara RF Systems 440-528-7200 [email protected]

.75 .25 D C B A A B C D SCALE: SIZE CAD FILE: DWG. NO. B SHEET 1 OF 1 REV. DATE APPROVALS DRAWN CHECKEDRESP ENG MFG ENGQUAL ENG UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN INCHES TOLERANCES ARE: FRACTIONS DECIMALS ANGLES MATERIAL FINISH DO NOT SCALE DRAWING APPLICATION USED ON NEXT ASSY 1 2 3 4 5 6 7 8 8 7 6 5 4 3 2 1 REVISIONS REV. DATE APPROVED SEE NOTES ACLARA RF SYSTEMS INC. ANY REPRODUCTION IN PART OR WHOLE WITHOUT THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF .010 .XX= .005 .XXX= .0005 .XXXX= 1/2 1/64 DJG 09/01/11 091-LLB11001 4:1 091-LLB11001 N/A A 09/01/11 DESCRIPTION A BY DJG 09/01/11 DJGDJG 09/01/11 ECO 10945 - INITIAL RELEASE LABEL, FCC ID, LLB11001 DJG THE WRITTEN PERMISSION OF ACLARA RF SYSTEMS INC . IS PROHIBITED. (C) 2011 ACLARA RF SYSTEMS INC. ALL RIGHTS RESERVED. PROPRIETARY AND CONFIDENTIAL. NOTES:1) MATERIAL: 4 MIL PRINTABLE POLYESTER/HIGH STRENGTH ACRYLIC SOLVENT ADHESIVE(AVERY) FASSON SPEC #72828 OR EQUIVALENT 2) BACKGROUND COLOR TO BE PANTONE 429 GRAY3) TEXT TO BE MINIMUM OF 0.125" HIGH4) TEXT COLOR TO BE BLACK

ACLARA RF SYSTEMS Former HEXAGRAM Inc. 30400 Solon Road . Solon, OH 44139 440-528-7200 September 22, 2011 LLB11001 RF Exposure calculations Based on FCC 1.1307 & 2.1091, FCC OET Bulletin 65. (1) Categorically Exclusion from RF exposure Evaluation: According to FCC regulations, RF exposure evaluation is Categorically Excluded if transmitter’s operation frequency is less than 1.5 GHz and ERP is less than 1.5 watt. (2) Absolute Maximum specifications of LLB11001 transmitter • Operational frequency band 450 MHz to 470 MHz. • The LLB11001 transmitter is measured for Max RF Power = 1.00 W. • Absolute Maximum transmission time (duration) for any Hexagram transmitters does not exceed 100 mS (0.10second). • Transmission period – Absolute maximum is 4 transmissions per hour. • All Hexagram Transmitters utilize FSK modulation. (3) Average RF Power Calculation: FCC regulations on permissible RF exposure are not based on peak envelope power (PEP), but on average power (P_ave) over a 30-minute time period for uncontrolled environments. As mentioned in (2), during any 30 minute Hexagram MTU can transmit only two times. Duration = 0.10 second. With maximum RF radiation equal to 1.00 W, the Average RF Power over 30 minutes is: P_ave (worst case) at 30 minute = 1W*2* [0.10sec/((30*60)sec)] = 1000*2* 0.000055 = 0.440mW (4) Maximum Radiated Power Density prediction (S): To predict power density (S) at distance R=20 cm from transmitter with P_ave = 0.00007W, next formula is used: S = P_ave/(4*(PI)*R^2) For the worst of the worst worst-case prediction of power density at or near a transmitter surface let’s use: S = P_ave/((PI)*R^2) = 0.440mW/(4*3.14*20cm*20cm) = 86.4uW/cm^2. This is the worst case of the near field power density of LLB11001 transmitter. (5) Maximum Permissible Exposure (MPE): AS FCC require, the maximum permissible exposure for general public in “uncontrolled situation” at 20 cm is: MPE = 460MHz/1500 = 1.228 mW/cm^2. By comparing results in (4) and (5), S=86.4 uW/cm^2 < MPE=0.440 mW/cm^2. We see that LLB11001 fully complies with RF safety at a distance of 20 cm. Sincerely, Larry Murphy Director of Engineering 440-528-7200 [email protected]

James R. Pollock HEXAGRAM INC. An ESCO Technologies Company 30400 Solon Road Solon OH 44139 (440) 528-7200 ENGINEERING TEST REPORT RADIO-FREQUENCY EMISSIONS TEST REPORT FOR HIGH READ-RATE GAS METER TRANSMITTING UNIT Model 2011-001, Rev. D FCC ID: LLB11001 September 14, 2011 Report Prepared by Agency Certification Control Technician 2 TEST REPORT INTRODUCTION The Hexagram Model 2011-001 transceiver is a “Meter Transmitting Unit” (MTU) designed to provide remote meter reading capability for a gas meter. The transceiver is self- powered and connects by a cable to a passive pulser unit which mounts on the gas meter. On board batteries provide power. The transmitter provides a very short, intermittent radio frequency transmission to send a remote reading of the meter to a data collector unit. A microprocessor provides timing, control and data processing functions. The internal antenna is inaccessible to the user and no external antenna is provided. A prototype unit was used as a test subject for this report. This report presents the data obtained in support of an application for Certification under Part 90 of the FCC rules. MEASUREMENTS PERFORMED Power Output and Spurious Emissions Page 3 with test set up photographs Occupied Bandwidth Page 10 Frequency Stability vs. Temperature Page 12 Frequency Stability vs. Supply Voltage Page 13 Transient Stability Page 15 3 POWER OUTPUT AND SPURIOUS EMISSIONS Within the tuning range of 450 – 470 MHz, the transmitter portion of the Model 2011- 001 (EUT) was examined at three fundamental frequencies and their harmonics. All measurements below 1 GHz were made at a 3-meter distance on the Smith Electronics open area test site located at 8200 Snowville Road, Brecksville, OH. Data pertinent to this site is on file with the FCC (Reg. #90938). The harmonic measurements above 1 GHz were made at a distance of 1 meter over a suitable ground plane. The measurements were made using the substitution method described in TIA/EIA-603-C. Tuned dipoles were used for measurements below 1000 MHz and a wave-guide antenna was used above 1000 MHz. A spectrum analyzer was used as a receiver. The transmitter was placed on a remotely rotatable, non-conducting test stand. This general set up is shown in Pictorial 1. Because of the intermittent nature of the normally operating transmitter, the transmitter was forced to transmit continuously for about 30 seconds at a 50% duty cycle for these measurements. Power to the meter necessary to sustain the transmission was provided by an external 6 V battery. With the transmitter powered and the test receiver tuned to the unmodulated signal, the transmitter under test was rotated to the position of maximum signal. The receiving antenna was then varied between 1 and 4 meters in height to again maximize the signal. Measurements were made with the antennas positioned both vertically and horizontally and the maximum signals recorded. Peak detection was used for the signals below 1000 MHz and average detection above 1000 MHz. After the maximum received meter readings were obtained for each frequency and polarity, the transmitter under test was removed from the area and replaced by a signal generator and transmitting antenna. With the transmit antenna placed as close as possible to the position of the test unit, the signal generator was activated at a test frequency. With the signal detected, the receiving antenna was positioned for maximum reception. The signal generator output was then adjusted until the received signal was equal to the previously received signal from the unit under test. These measurements were repeated for each frequency and antenna orientation and the maximum values obtained are noted in Tables 1a – 1c. In order to convert the signal generator output value to equivalent radiated power from a dipole, the following equation is used: P d = P g – cable loss(dB) + antenna gain(dB d ) where: P d is the dipole equivalent power in dBm, P g is the generator output into the substitution antenna, also in dBm, and “antenna gain” is the dB gain of the substitution antenna with respect to a theoretical dipole. According to 90.210(d)(3) all emissions greater than 12.5 kHz from the center of the authorized band shall be attenuated below the unmodulated carrier by 50 + 10log(P). The determined power outputs, the required harmonic attenuation as well as the attenuation for each harmonic are found in Tables 1a – 1c. 4 PICTORIAL 1 HEXAGRAM MODEL 2011-001 MTU OUTPUT POWER AND SPURIOUS EMISSIONS TYPICAL TEST SETUP 5 PICTORIAL 2 HEXAGRAM MODEL 2011-001 MTU OUTPUT POWER AND SPURIOUS EMISSIONS TYPICAL TEST SETUP External Battery Ferrite Bead EUT Pulse Generator 6 TABLE 1a HEXAGRAM MODEL 2011-001 TRANSMITTER SUBSTITUTION METHOD 450 MHz Horizontal 3 meter measurement using tuned dipole antenna Freq. (MHz) Gen. Output (dB) Coax Loss (dB) Ant. Gain (dBd) Dipole Eq. Power (dBm) Difference (dB) 450 26.9 2.1 -1.0 23.8 900 -31.3 3.2 -0.7 -35.2 -59.0 Horizontal 1 meter measurement using horn antenna Freq. (MHz) Gen. Output (dBm) Coax Loss (dB) Ant. Gain (dBd) Dipole Eq. Power (Dbm) Difference (dB) 1350 -45.1 0.8 6.5 -39.4 -63.2 1800 -56.7 1.0 7.4 -50.3 -74.1 2250 -61.0 1.2 6.2 -56.0 -79.8 2700 -50.0 1.3 6.4 -44.9 -68.7 3150 -51.0 1.4 7.2 -45.2 -69.0 3600 -42.9 1.6 8.3 -36.2 -60.0 4050 -50.1 1.7 8.0 -43.8 -67.6 4500 -39.5 1.8 8.6 -32.7 -56.5 Vertical 3 meter measurement using tuned dipole antenna Freq. (MHz) Gen. Output (dB) Coax Loss (dB) Ant. Gain (dBd) Dipole Eq. Power (dBm) Difference (dB) 450 31.5 2.1 -1.0 28.4 900 -26.7 3.2 -0.7 -30.6 -59.0 Vertical 1 meter measurement using horn antenna Freq. (MHz) Gen. Output (dBm) Coax Loss (dB) Ant. Gain (dBd) Dipole Eq. Power (Dbm) Difference (dB) 1350 -46.8 0.8 6.5 -41.1 -69.5 1800 -49.1 1.0 7.4 -42.7 -71.1 2250 -54.0 1.2 6.2 -49.0 -77.4 2700 -51.7 1.3 6.4 -46.6 -75.0 3150 -45.0 1.4 7.2 -39.2 -67.6 3600 -40.6 1.6 8.3 -33.9 -62.3 4050 -53.1 1.7 8.0 -46.8 -75.2 4500 -42.9 1.8 8.6 -36.1 -64.5 Output = 23.8dBm = 0.240 …

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LLB11001 Test Setup Photos