L9N-7880-AUHF Data Transceiver Module

AES 7880-A UHF DATA TRANSCEIVER USER MANUAL December 9, 2004 Notice: The exterior of any product containing this device must contain the following label: “Contains FCC ID : L9N-7880-A” Warning: This device must be professionally installed with appropriate power supply and antenna in order to ensure proper operation. For outdoor applications, the antenna gain must not exceed 10 dBi. For indoor applications, the antenna gain must not exceed 2.2 dBi. Warning: This device may not be modified by the user. Any modifications not expressly approved by AES Corporation could void the user’s authority to operate the equipment. Warning: For FCC RF exposure compliance purpose, this device may not be incorporated into any product which operates within 50 cm of a person under normal operation. 1.0 Description The AES Model 7880-A UHF Data Transceiver permits data to be transmitted in the 421 ~ 470 MHz band of frequencies. The maximum output power is 1 W. The data rate is 9600 baud. The 7880-A interfaces with an embedded microprocessor using a simple 4-wire serial Programming Port. The operating parameters are set by AES approved software. B2.0 Signals The 7880-A has 20 pins, consisting of 2 rows of 10 pins each. The following diagram (bottom view) shows the pin numbering scheme: The following table lists the signal pins and their function: Pin NameFunction 19 PSELSelect Programming Port (active low) 18 PCLKSerial Clock for Programming Port 17 PDIData Input for Programing Port 16 PDOData Output from Programming Port 2DCLKData Clock for Synchronous Data 3DIOData Input/Output for Synchronous Data 5VCCPower (+5 volts, 900 mA max) 1GNDGround 8“ 10 “ 11 “ 13 “ 20 “ Pin 1Pin 20 3.0 Calibration The 7880-A has a single adjustment – the Crystal Oscillator frequency. In order to adjust the Crystal Oscillator frequency, a suitable frequency counter must be attached to the antenna port. With the 7880-A set to transmit, using Manchester coding, the Crystal Oscillator may be adjusted until the average frequency measured by the frequency counter corresponds to the desired center frequency. The average frequency should be set to within 300 Hz of the desired value. Note: The frequency counter must be capable of measuring up to 470 MHz with an accuracy of 100 Hz in order to ensure proper calibration of the 7880-A. 4.0 Device Programming The operation of the 7880-A is controlled by the Programming Port. The protocol conforms to the Serial Peripheral Interface (SPI), originated by Motorola. The interface operates in a full duplex manner, with data shifted into the PDI pin at the same time as data is shifted out on the PDO pin. Data transfer cycles are initiated by the low-going transition of the PSEL pin; individual data bits are synchronized to the PCLK pin. 5.0 Data Communication The DIO pin is bidirectional. When the 7880-A is in transmit mode, the DIO pin becomes an input for the data to be transmitted. When the 7880-A is in receive mode, the DIO pin becomes an output. In both cases, the data is synchronized to the DCLK pin.

Response to TCB Findings Please clarify if the device has the capability to transmit simultaneously on multiple channels? Response: No

From: "George Tannahill" <[email protected]> To: "Curtis-Straus Certification Dept." <[email protected]> Sent: Tuesday, November 23, 2004 8:50 AM Sub ject: RE: Section 90.210 Question - Regarding your answer Page 1 of 3 12/14/2004 Hello Yunus, Per the first paragraph of 90.210 measurements may be expressed in peak or average values as long as the powers are expressed in the same parameters as those used to specify the unmodulated carrier. As long as the applicant is using an average detector to determine the level of the unmodulated carrier then average measurements can be used to show compliance with the 90.210 "D" mask. Best Regards George Tannahill -----Original Message----- From: Curtis-Straus Certification Dept. [mailto:[email protected]] Sent: Monday, November 22, 2004 11:24 AM To: George Tannahill Subject: RE: Section 90.210 Question - Regarding your answer Hello George, I wanted to clarify an issue regarding the emission mask requirement of 90.210. I am reviewing an application for Part 90 and the applicant has forwarded an e-mail to me, that includes an answer from you about that section. The e-mail is below. My question is; If the applicant must meet emission mask D in that section, can they use average detector to show compliance with this mask? As you know, 90.210(d) specifically requires "peak" detector to be used. The applicant is trying to use your answer as a permission to use "average" detector at this point. I wanted to verify if their assumption is correct or not. I would be grateful if you could answer at your earliest convenience. Thank you in advance... Best Regards, Yunus Faziloglu Reviewing Engineer Curtis-Straus TCB ----- Original Message ----- From: "George Tannahill" <[email protected] > To: <[email protected] > Cc: "Henry Solomon" <[email protected] >; "Michael Sherman" <msherman@aes -intellinet.com>; "Stanley Lyles" <[email protected]> Sent: Friday, November 05, 2004 11:43 AM Subject: [SPAM] - RE: Section 90.210 Question - Bayesian Filter detected spam Ralph, For measurements under 90.210 peak or average measurements may be used. Be careful to measure the unmodulated carrier reference level using the same measurement process (i.e. peak or average). For example if the unmodulated carrier level is measured as an average then the spurious and harmonics may also be average measurements. For the emission mask, the rulemaking addressed having a specific emission mask to protect the adjacent channels. At 12.5 KHz from the center frequency applying mask 90.210(d)(2) requires an attenuation of almost 70 dBc and applying mask 90.210(d)(3) for a one watt unit will require an attenuation of 50 dBc. To the best of my knowledge this was the intent of the rule. Any deviation from meeting the standard would require a waiver from the Wireless Bureau. Regards George Tannahill -----Original Message----- From: Ralph A. Haller [mailto:[email protected]] Sent: Friday, November 05, 2004 11:17 AM To: George Tannahill Cc: 'Henry Solomon'; 'Michael Sherman' Subject: Section 90.210 Question George, Thanks for returning my call. Here is the question by email, as you requested. Basically, for power levels of less than 100 watts, the above rule section requires a very odd shaped emission mask. My client wants to produce a transmitter that operates at less than one watt, but for this example, I will use the one watt level. Section 90.210(d)(2) requires application of a formula that has no relation to power. It merely requires attenuation levels based on the frequency displacement from the center channel. However, Section 90.210(d)(3) provides an attenuation formula that is based on power. For transmitters of 100 watts or more, the two sections produce a continuous curve at 12.5 kHz displacement of 70 dB. For a transmitter of one watt, Section 90.210(d)(3) requires only 50 dB attenuation at displacements at or greater than 12.5 kHz. But, Section 90.210(d)(2) requires attenuations of greater than 50 dB from 9.8 kHz displacement to 12.5 kHz displacement. Thus, at 12.5 kHz displacement, there is a discontinuity between 70 dB and 50 dB. >From a practical standpoint, it makes no sense to require attenuation greater than 50 dB at any point in the mask for one watt transmitters. Perhaps said more broadly, Section 90.210(d)(3) should set the maximum attenuation re quired for any displacement. Other masks, like Section Page 2 of 3 12/14/2004 90.210(c)(2) do provide for a maximum attenuation. I believe that there may actually be a flaw in the wording of Section 90.210(d)(2), but it is what it is. This can also be looked at from an interference potential to adjacent channel stations. Take for example a 500 watt transmitter. At 12.5 kHz displacement, the transmitter would be allow to radiate -13 dBm (57 dBm - 70 dB = -13 dBm) into the adjacent channel at 12.5 kHz. On the other hand, a one watt transmitter would be limited to -40 dBm (30 dBm - 70 dB = -40 dBm). This suggests that a 500 watt transmitter would be allowed to cause 27 dB more interference in the adjacent channel. This does not seem rational from an interference standpoint. >From our conversation, I understand that the introductory paragraph of Section 90.210 would allow use of peak or average measurements, as long as the reference level is consistent, eg use of average power would require establishing an average maximum reference level. Section 90.210(d)(4) relates to spectrum analyzer settings only, and does not require use of peak power measurements. Could you please confirm that this understanding is correct? I believe use of averge power may solve the immediate problem for my client, but the curve shape continues to be of concern. Thank you. Ralph ----------------------------------------------------------- The information contained in this message may be confidential and is intended for the addressee(s) only. If you have received this message in error or there are any problems, please notify…

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REPORT: EE0563-3 FCC ID: L9N-7880-A EXHIBIT: External Photos MODEL: 52-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 1 of 1

Model 7880-A Transceiver www.aes-corp.com 7880-Label2.ai 7 july 2004 Print at 22% FCC ID: L9N-7880-A Label Material: Polyester Adhesive: Permanent Label shall adhere to device for lifetime of device.

REPORT: EE0563-3 FCC ID: L9N-7880-A EXHIBIT: Internal Photos MODEL: 52-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 1 of 1

The maximum voltage and current into the final RF amplifier stage is 900 mA at 5 volts when transmitting at 1 watt.

CC1020_2.SCH Revised: April 9, 2004 Revision: Bill Of Materials April 9, 2004 18:44:19 Page 1 Item Quantity Reference Part ______________________________________________________________ 1 2 C1,C24 10P 2 11 C2,R6,R25,R26,C37,C41, NU C43,C45,C47,C56,C61 3 3 C3,C22,C28 4P 4 7 C4,C9,C20,C38,C81,C84, 102P C90 5 5 C5,C82,C83,C86,C91 104P 6 1 C6 224P 7 1 C7 822P 8 1 C8 222P 9 2 C10,C88 10U/6.3V/T 10 1 C23 1P 11 7 C25,C27,C39,C53,C60,C85, 220P C94 12 4 C26,C63,C67,C68 100P 13 3 C29,C62,C66 7P CC1020_2.SCH Revised: April 9, 2004 Revision: Bill Of Materials April 9, 2004 18:44:19 Page 2 Item Quantity Reference Part ______________________________________________________________ 14 2 C30,C70 5P 15 4 C36,C40,C42,C46 68P 16 2 C51,C52 150P 17 2 C64,C65 12P 18 1 C71 18P 19 1 C72 15P 20 2 C80,C87 100U/6.3V/T 21 2 C92,C93 103P 22 1 D1 RLS4148 23 2 D60,D61 HVU131 24 1 J1 ANT JACK 25 1 L1 33NH/SPRING COIL 26 1 L2 15NH/SPRING COIL 27 1 L11 68NH/SPRING COIL CC1020_2.SCH Revised: April 9, 2004 Revision: Bill Of Materials April 9, 2004 18:44:19 Page 3 Item Quantity Reference Part ______________________________________________________________ 28 5 L12,L17,L61,L63,L65 22NH/SPRING COIL 29 2 L13,L15 100NH/CHIP COIL 30 2 L14,L16 5.6NH/SPRING COIL 31 1 L21 BEAD_102 32 2 L22,L23 2.2UH/BEAD 33 1 L62 0.27UH/CHIP COIL 34 1 L64 27NH/SPRING COIL 35 1 L71 10NH/SPRING COIL 36 2 P3,P4 HEADER 10A 37 1 Q1 2SC4116GR 38 1 Q2 DTA114EE 39 1 Q3 DTC114EE 40 1 R1 82K 41 1 R2 1K5 CC1020_2.SCH Revised: April 9, 2004 Revision: Bill Of Materials April 9, 2004 18:44:19 Page 4 Item Quantity Reference Part ______________________________________________________________ 42 2 R3,R10 4K7 43 4 R4,R5,R12,R15 1K 44 1 R8 68R 45 1 R11 10K 46 2 R16,R17 47K 47 5 R21,R22,R23,R90,R91 0R 48 1 R60 82R 49 1 TP2 TP 50 1 U1 CC1020 51 1 U2 PA2460 52 1 U3 RT9167-30CB 53 1 VR1 100KB 54 1 X1 TCXO_14.7456MHZ

Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 where:S = power density P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Maximum peak output power at the antenna terminal:29.50(dBm) Maximum peak output power at the antenna terminal:891.2509381(mW) Antenna gain(typical):10(dBi) Maximum antenna gain:10(numeric) Prediction distance:50(cm) Prediction frequency:450(MHz) MPE limit for uncontrolled exposure at prediction frequency:0.3(mW/cm^2) Power densit y at prediction frequency:0.283694(mW/cm^2) Maximum allowable antenna gain:10.24271127(dBi) 2 4R PG S π = Prediction of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 where:S = power density P = power input to the antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Maximum peak output power at the antenna terminal:29.50(dBm) Maximum peak output power at the antenna terminal:891.2509381(mW) Antenna gain(typical):2.2(dBi) Maximum antenna gain:1.659586907(numeric) Prediction distance:20(cm) Prediction frequency:450(MHz) MPE limit for uncontrolled exposure at prediction frequency:0.3(mW/cm^2) Power densit y at prediction frequency:0.294259(mW/cm^2) Maximum allowable antenna gain:2.283911101(dBi) 2 4R PG S π =

Curtis-Straus LLC is accredited by the American Association for Laboratory Accreditation for the specific scope of accreditation under Certificate Number 1627-01. This report may contain data which is not covered by the A2LA accreditation. _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Test Report Report No EE0563-3 Client AES Corporation 285 Newbury Street Peabody, MA 01960 Phone 978-535-7310 Fax 508-535-7313 FRN 0003-6214-63 Model 52-7880-A FCC ID L9N-7880-A Equipment Type Licensed Non-Broadcast Station Transmitter Equipment Code TNB Results As detailed within this report Prepared by _____________________ Evan Gould – Test Engineer Authorized by __________________________ Michael Buchholz – EMC Manager Issue Date 11/17/04 Conditions of issue This Test Report is issued subject to the conditions stated in ‘terms and conditions’ section of this report. REPORT: EE0563-3 FCC ID: L9N-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 2 of 23 Table Of Contents Summary......................................................................................................................... 3 Test Methodology............................................................................................................ 3 EUT Configuration........................................................................................................... 4 Occupied Bandwidth....................................................................................................... 5 Average Unmodulated Transmitter Carrier Power.......................................................... 7 Emission Masks.............................................................................................................. 9 Frequency Stability........................................................................................................ 11 Radiated Spurious Emissions....................................................................................... 15 Transient Frequency Behavior...................................................................................... 16 Test Equipment Used.................................................................................................... 18 Terms And Conditions................................................................................................... 19 A2LA Accreditation........................................................................................................ 21 REPORT: EE0563-3 FCC ID: L9N-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 3 of 23 Summary This report shows the results of testing the AES Model 7880-A UHF transceiver module to 47 CFR 90.201 The transmitter is able to operate at frequencies in the range 402- 470MHz, and supports data rates up to 9600baud. The modulation employed is FSK. Test Methodology Radiated spurious emissions testing was performed according to the procedures specified in ANSI/TIA-603-B-2002. Frequency range investigated: 30MHz – 5GHz Measurement distance: 3m REPORT: EE0563-3 FCC ID: L9N-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 4 of 23 EUT Configuration EUT Configuration Work Order: E0563 Company: AES Corporation Company Address: 285 Newbury Street Peabody, MA 01960 Contact: Dave Townzen Person Present: Dave Townzen MNSN EUT: 52-7880-A1 EUT Description: UHF Transceiver EUT Max Fre quency: 470MHz Support Equipment: MNSN BK Precision DC p/s1730- LaptopWinBookXL10807795 demo board (supplies power and control interface) CC1020Rev 2.2 Microchip TQFP Demo Board PIC18FXS2064/80LWEL032811145 EUT Cables: QtyShielded?LengthFerrites Demo Board Cables DB25 parallel1Yes2mNo DC wires1 pairNo0.5mNo SMA1Yes6"No Unpopulated EUT Ports: QtyReason none Software / Operating Mode Description: Operating transmitter with SmartRF Studio to set center frequency, baud rate, frequency separation, etc. REPORT: EE0563-3 FCC ID: L9N-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 5 of 23 Occupied Bandwidth REQUIREMENT The bandwidth limit for this device is 11.25kHz. [90.209(b)(5)] ANALYZER PLOTS Low – 9600baud UART (225Hz freq sep) Mid – 9600baud UART (225Hz freq sep) REPORT: EE0563-3 FCC ID: L9N-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 6 of 23 High – 9600baud UART (225Hz freq sep) REPORT: EE0563-3 FCC ID: L9N-7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 7 of 23 Average Unmodulated Transmitter Carrier Power The 6dB bandwidth of the CW signals measured is less than 1kHz, so a RBW of 1kHz was used to capture the average power. MEASUREMENTS Average Unmodulated Output Power Curtis-Straus LLC Engineer: Evan Gould Company: AES Work Order: E0563 Date: 11/15/2004 EUT: UHF Transceiver Test Site: EMC 3 Analyzer: Yellow Cable: Microflex #7 Notes: EUT settings: power = "+2"; unmodulated Attenuator: 10dB Reading Attenuation Factor Adjusted Reading (dBm)(dB)(dBm) 15.301025.…

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REPORT: EE0563-3 FCC ID: L9N-7880-A EXHIBIT: Setup Photos MODEL: 7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 1 of 2 Antenna Port Conducted Emissions Frequency Stability REPORT: EE0563-3 FCC ID: L9N-7880-A EXHIBIT: Setup Photos MODEL: 7880-A _____________________________________________________________ _____________________________________________________________ Curtis-Straus LLC • 527 Great Road • Littleton, MA • TEL (978) 486-8880 • FAX (978) 486-8828 Page 2 of 2 Radiated Spurious Emissions Substitution Method