OZR809-3545Wireless temperature sensor model 809-3545

026-1702 Rev 0 10-30-00 Radio Frequency (RF) Temperature Sensor System Installation and Operation Manual 1640 Airport Road, Suite 104 Kennesaw, GA 31044 Phone: (770) 425-2724 Fax: (770) 425-9319 ALL RIGHTS RESERVED. The information contained in this manual has been carefully checked and is believed to be accurate. However, Com- puter Process Controls, Inc. assumes no responsibility for any inaccuracies that may be contained herein. In no event will Computer Process Controls, Inc. be liable for any direct, indirect, special, incidental, or consequential damages resulting from any defect or omission in this manual, even if advised of the possibility of such damages. In the interest of continued product development, Computer Process Controls, Inc. reserves the right to make improvements to this manual, and the products described herein, at any time without notice or obligation. FCC COMPLIANCE NOTICE NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a res- idential installation. 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 guar- antee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna -- Increase the separation between the equipment and the receiver -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected -- Consult the dealer or an experienced radio/TV technician for help READ ALL INSTRUCTIONS CAREFULLY before attempting to install or operate the RF Sensor Sys- tem. SAVE THIS INSTRUCTION MANUAL — This instruction manual contains important operating instruc- tions for the RF Sensor System. Warning! FCC Regulations state that any unauthorized changes or modifications to this equipment not expressly ap- proved by the manufacturer could void the user's authoriza- tion to operate this equipment. Table of Contents • 1 Table of Contents 1 OVERVIEW ................................................................................................................................................................... 1 1.1. S YSTEM D ESCRIPTION .................................................................................................................................................. 1 1.2. H ARDWARE C OMPONENTS ........................................................................................................................................... 3 1.2.1. Sensors .................................................................................................................................................................. 3 1.2.1.1. RF Ambient Temperature Sensors...................................................................................................................................... 3 1.2.1.2. RF Long-Range Ambient Sensors ...................................................................................................................................... 4 1.2.1.3. RF Product Simulator ......................................................................................................................................................... 4 1.2.2. RF Receiver ........................................................................................................................................................... 5 1.2.3. RF Gateway........................................................................................................................................................... 5 1.2.4. Hand-Held Terminal ............................................................................................................................................. 6 2 INSTALLING THE RF GATEWAY........................................................................................................................... 7 2.1. M OUNTING THE RF G ATEWAY ..................................................................................................................................... 7 2.2. P OWERING THE RF G ATEWAY ..................................................................................................................................... 7 2.3. W IRING THE RF G ATEWAY TO A CPC S ITE C ONTROLLER (I/O N ETWORK )................................................................ 8 2.3.1. Wire Connection ................................................................................................................................................... 8 2.3.2. Setting the Board Numbering Dip Switch ............................................................................................................. 8 2.3.3. Setting the Baud Rate Dip Switch ......................................................................................................................... 9 2.3.4. Setting the RS485 I/O Termination Jumpers......................................................................................................... 9 2.4. N ETWORKING G ATEWAYS AND R ECEIVERS (T OKEN R ING N ETWORK ) ..................................................................... 10 2.4.1. Wiring the Token Ring Network to the Gateway................................................................................................. 10 2.4.2. Setting the Token Ring Network Termination Jumpers ...................................................................................... 10 3 INSTALLING THE RF RECEIVER..............................…

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Linx TXM-418-LC-R Helical Antenna Soldered to PCB or External Whip Antenna 32.768kHz Crystal Fixed Attenuation T-Pad Output Filter 418.02+/-.06MHz SAW Resonator RF Amp V ain V ref ADS7822E A/D Int/Ext Thermistor Ferrite (for External Sense) Ferrite (for External Sense) DS 2417 Clock Service Pin INTData Data Input Wake Input Time Input Clean/Defrost Input Clean/Defrost Switch (Internal or External) Ferrite for External Defrost/Clean 4MHz Resonator MCHC705K1 Microprocessor Digital Temperature Data (12 bits) Status LED Data Output (ID, Temp, and two flag bits, start and stop bits, CRC) 809-354x and 809-35xx RF Temperature Sensor LED Driver Defrost/Clean Jumper Time Period Jumper

The 809-35xx RF sensors are composed of four major functional blocks: the user interface, a temperature measuring block, a time keeper and microprocessor block, and the RF transmitter block. The user interface is composed of two switches and an LED. One of the switches is denoted as the service pin. It has three functions: it turns the sensor on, if held for ten seconds it turns the sensor off, and if pressed momentarily when the sensor is on, it will transmit the temperature with the service pin flag set, provided that the last transmission was more than ten seconds ago. The other switch is the clean/defrost termination switch. It allows the user to set a flag that the area controller can interpret to ignore the transmitted data. The LED is used to provide feedback to the user on whether the sensor is on and/or in clean mode. It will also flash when a successful service pin message is transmitted. The temperature measuring block is composed of a thermistor and a 24.9K resistor set up as a voltage divider. This voltage is read by a 12-bit A/D converter and transmitted as counts to the time keeper and microprocessor block. The time-keeper and microprocessor block is composed of a DS2417 time keeper and a Motorola MC68HC705KJ1CDW. The DS2417 keeps track of the time between transmissions and controls the reset line to the Motorola microprocessor. When the DS2417 determines that a transmission is required [either the clock has elapsed the predetermined transmission period (set by jumper JP1 to either one minute or three minutes) or the service pin has been depressed and the last transmission was at least 10 seconds ago], it wakes up the Motorola microprocessor, measures the temperature, checks the flags, and sends the data to the RF transmitter block via a serial interface using inverted NRZ with 1 start bit, 8 data bits, and 1 stop bit. The RF transmitter block is composed of a Linx Technologies TXM-418-LC-R transmitter operating at 418MHz, an attenuation T-pad composed of three SMD resistors, and a ¼ wave antenna.

RF Emissions Test Report To Determine Compliance With: FCC, Part 15 Rules and Regulations Model numbers: 809-3545 February 5, 2001 Manufacturer: Computer Process Control 1640 Airport Rd Suite 104 Kennesaw, GA 30144 EMC Testing Laboratories, Inc. authorizes the above company to reproduce this report provided it is reproduced in its entirety Contents Section EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 2 of 1 1 9 9 General Information ....................................................................... 1 Test Summary.................................................................................. 2 Standard Reference ........................................................................ 3 Test Method .......................................................................... 4 Radiated Out of Band Emissions Measurements ........................... 5 Fundamental Frequency Radiated Emissions Measurements ......... 6 Occupied Bandwidth Measurements .............................................. 7 Configuration ....................................................................... 8 EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 3 of 1 1 9 9 Section 1 General Information Manufacturer: Computer Process Control 1640 Airport Rd Suite 104 Kennesaw, GA 30144 Manufacturer representative: Mr. Scott Gelber Equipment covered by this report: Model no. 809-3545 Options covered by this report: None Equipment serial no. Prototype Test specifications: To determine compliance with: FCC, Part 15, Subpart C Rules and Regulations, Class B Test report number: 01-158A Test commenced: January 26, 2001 Test completed: January 30, 2001 Test engineer: Kent Stewart Test Facility: The test facility used to perform these tests is on file with the FCC under file 31040/SIT, 1300F2 and located at: EMC Testing Laboratories, Inc. 2420 Oak Street West Cumming, GA. 30041-6456 EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 4 of 1 1 9 9 Section 2 Test report summary sheet 1 of 2 Summary: Tests Results FCC, Part 15, Class B, Radiated emissions: Pass FCC, Part 15, Class B, Conducted emissions: N/A 1- The product(s) covered by this report was found to comply with the limits indicated in paragraphs 15.109 Subpart B and 15.231, Part 15, Subpart C of the FCC Rules and Regulations. Additionally, since the equipment covered by this report is designed to periodically transmit data the alternative limits indicated in (e) of paragraph 15.231 were used. Note: The conducted emissions test was not performed since the EUT is battery operated with no means for connection to public mains. Product description: The product(s) covered by this report consisted of a model 809-3545, battery operated temperature transmitter, intended for use with refrigeration equipment. Model 809-3545 is an intentional radiator operating at 418MHz and is programmed to transmit once every 3 minutes. The transmit duration is 18.8 mS maximum (on time). The equipment utilizes a maximum 10.42% duty cycle (see manufacturers letter in section 9). The enclosure is constructed of metal with plastic end caps with overall dimensions measuring 14.2cm long by 3.2cm high by 2.9cm deep and encloses the following components judged as critical: 1. A printed wiring board, manufactured by Computer Process Controls, part no. 537-3545 Rev. 1.60 2. An RF module, manufactured by Linx, part no. TX-418-LC-R. 3. Two unshielded integral cables. One cable is terminated with a thermistor (thermistor cable) and the other cable is for connection to a switch (clean switch cable). Additionally, the unit is provided with a 17.5 cm long, (¼ wave) whip antenna. EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 5 of 1 1 9 9 Test report summary sheet 2 of 2 Test configuration: The equipment under test was set-up and configured as specified by the manufacturer. 1- The EUT was connected to the following support peripherals. A) None 2- The EUT was connected to the following cables. A) An unshielded, integral thermistor cable terminated with a thermistor. B) An unshielded, integral clean switch cable was left unterminated. Test operation: For all measurements, the equipment under test was and caused to function in a continuous mode of operation for maximum electrical activity as specified by the manufacturer. Specifically, during the intentional radiator measurement the EUT’s transmitter was put in a CW mode. Modifications: The following modifications were required to comply with the indicated limits: None Conclusion: With the above indicated modifications, the product(s) covered by this report has been tested and found to comply with the limits indicated in paragraph 15.231 table (e) of the FCC, Part 15, Subpart C Rules and Regulations and all subsequent limits indicated therein for a class B device. Tested by: Reviewed by: Kent Stewart Gene J. Bailey Laboratory Manager Engineering Manager EMC Testing Laboratories, Inc. EMC Testing Laboratories, Inc. February 5, 2001 February 5, 2001 EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 6 of 1 1 9 9 Section 2 cont... This page intentionally left blank. (Reserved for future use) EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 7 of 1 1 9 9 Section 3 STANDARD REFERENCE The following primary standards were used for this test: 1) ANSI C63.4-1992: Method of Measurements of Radio-Noise Emissions from Low- Voltage Electrical and Electronic Equipment in the 9 Khz to 40 Ghz. 2) US Code of Federal Regulations (CFR) 1998: Title 47, Part 15, Radio Frequency Devices, Subpart C, Intentional Radiators. EMC Testing Lab. (770) 781-9228 Test report no. 01-158A Page 8 of 1 1 9 9 Section 4 TEST METHOD INTRODUCTION: The product(s) covered by this report were subjected to electromagnetic interference emissions measurements to determine compliance with the FCC, Part 15 requirements. Radiated emissions were measured in accordance with Methods of Measurement of Radio-Noise Emissions from Low-Voltage Elec…

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Page 1 of 2 2/21/01 Barry C. Quinlan From: "Gene Bailey" <[email protected]> To: "Certification Manager" <[email protected]> Sent: Wednesday, February 14, 2001 5:52 PM Subject: Re: FCC ID: OZR809-3545 Barry, This is in response to your e-mail dated February 12, 2001 for FCC ID OZR809-3545. 1. The batteries used in the unit were new, fully charged batteries as required by 15.31(e). 2. During the emissions testing the EUT was rotated through three orthogonal axis. The maximum emissions measured was with the EUT in the upright position (intended installation). The "Test set- up" photograph was taken when the peak emissions were measured. 3. As discussed during our recent telephone conversation, the worst-case duty cycle would be next to impossible to plot because, the worst-case duty cycle is tied to the physical address of the DS2417 in the transmitter. Some of the bits of address of the DS2417, the temperature data, the service pin flag and the CRC are used to create the physical message. The address of the DS2417 is not programmable or selectable since each DS part has a unique 1-wire address. To generate the worst case message, CPC used a mathematical analysis (see manufacturers letter in section 9 of the report) to get the largest number of 1’s in the message possible and continued with the analysis. Additionally, as discussed three similar transmitters in this product group have already received FCC grants with the same exact duty cycle information provided. 4. The EUT is factory set at a 3 minute cycle time, but may be special ordered with a 1 minute cycle time. The cycle time is set during manufacture of the product. If jumper JP2 is populated with a jumper, the transmission period is 1 minute. If JP2 is not populated the transmission period is 3 minutes. The firmware is limited to these two choices. 5.Radiated emissions were measured from 30 MHz to 4.18 GHz. 6. The antenna is manufactured by Linx Technologies, part number ANT-418-PW-QW and is permanently secured to the enclosure by placing its base through a ¼ inch hole in the enclosure and securing it with a nut and washer. The nut is then covered with a bonding adhesive. The connection of the antenna to the PCB is accomplished by trimming the coax to length and crimping two Molex terminals part no. 16-02-0087 to the coax with a Molex 11-01-0209 crimp tool. The mating header (Molex part no. 70553-0001) is soldered to the printed wiring board. 7. The label material is a poly-carbonate with the markings back printed on the label. The label is provided with a 3M adhesive type 467 or 502. Since the label is back printed you would have to physically destroy the label to scratch off the marking. 8. The last three grants issued by the FCC were in behalf of Computer Process Controls, as indicated in item 4 above. The FCC ID for the grants are OZR809-3542, OZR809-3544 and OZR809-3548. You can go to the FCC web site and verify that EMC Testing Laboratories was the agent and test Page 2 of 2 2/21/01 facility for these grants. Should you have any questions or comments, please do not hesitate to contact us. -----Original Message----- From: Certification Manager <[email protected]> To: Kent Stewart <[email protected]> Date: Monday, February 12, 2001 10:41 AM Subject: FCC ID: OZR809-3545 Kent, We have conducted our review of the application and the following issues have been identified: 1. Please confirm that you used a new battery during the testing per 15.31(e). 2. Please confirm that you rotated the sample through three orthogonal axis during testing to maximize radiated emissions. 3. For information only, no response needed. The table on page 12 of the test report shows incorrect limits. The limits in the tables are based solely on the fundamental frequency and not on the frequency of the emission. Thus, for this 418MHz unit, all spurious not in a restricted band per 15.205 are subject to a 41.8uV/m limit at 10 meters unless 15.209 allows a higher limit. The sample is compliant with the correct limit with the data provided. 4. For information only. Conversion from 3 to 10 meters is 10.5 dB, not 10dB. Limits in tables on page 15 of the test report are 0.5dB too generous. We would prefer data acquired at the limit distance of 3 meters. 5. Please provide oscilloscope plots or equivalent documenting the claimed duty cycle of 10.42%. Please show the actual on time for one and zero bits. 6. Please provide test data for documenting the 3 minute cycle time. Written observations from the lab or manufacturer are acceptable. 7. Please tell us the frequency range explored for radiated emissions. 8. Please supply front and back test setup photos. 9. Please describe the antenna used with the unit and its method of attachment to the product. 10. Please provide details of the label material. 11. It appears that your laboratory is not ISO Guide 25 (or equivalent) accredited. Please can you provide documentary evidence showing that the FCC have accepted at least 3 transmitter test reports from your laboratory. Best regards Barry C. Quinlan Certification & Telecom Manager Curtis-Straus LLC

RF Monitoring System On Time Duty Cycle Analysis The messages sent by the RF Sensors have the following message structure: typedef struct { BYTE bMsgInfo; // Message Info // - Bit 7: = 0 to indicate the Short message form // - Bit 6: set if device in alarm // - RF_INFO_ALARM // - Bit 5: set if device has a low battery // - RF_INFO_LOW_BATTERY // - Bit 4: set if cleaning switch is active // - RF_INFO_CLN_SWITCH // - Bits 0-3: Message Type // - RF_MSG_xxx DWORD dwSndAddr; // Sender ID Address // - LSB to MSB ( Little Endian format ) WORD wData; // Data // - Refer to data definition for this // message type in the STANDARD MESSAGE // FORM section. // - LSB to MSB ( Little Endian format ) WORD wCRC; // Complement of a 2 byte CRC-16 // - bMsgInfo through wData // - LSB to MSB format } RF_SHORT_2_MSG; The bytes are sent at 4800 baud using NRZ encoding with 1 Start Bit, 8 Data Bits, and 1 Stop Bit. Duty Cycle: For a typical message Ones 9 Bytes of Stop Bits:9 bMsgInfo:0The normal message has zero 1’s. Bit 7 = 0 Bit 6 = 0 (not used by this device) Bit 5 = 0 (not used by this device) Bit 4 = 0 normally only a 1 during cleaning mode Bits 0 –3 = 0 for the normal message = 1 only if user presses the service pin dwSndAddr:1632 bit unique address for each device. Assume half the bits are set. We should never use more than 24 bits so using an average of 12 bits is closer to reality. wData:616 bits of binary data. We are only using a maximum of 12 bits (12 bit A/D) and assume half the bits are set. wCRC816 bit CRC of the message. Assume half the bits are set. ___ 39 high bits in the message 9 * 10 bits = 90 Total bits in the message Within a 100 millisecond window the typical duty cycle would be: Duty Cycle = ( One’s Ratio * ( Bytes in Message * 10 Bit Character Time ) )/ 100 msec Duty Cycle = ( 39/90 * ( 9 * ( 10 * 1/4800 ) ) ) / 0.100 Duty Cycle = 81.25 e –3 Duty Cycle: For a worst-case message Ones 9 Bytes of Stop Bits:9 bMsgInfo:1The normal message has zero 1’s. Bit 7 = 0 Bit 6 = 0 (not used by this device) Bit 5 = 0 (not used by this device) Bit 4 = 1 while in cleaning mode Bits 0 –3 = 0 for the normal message = 1 only if user presses the service pin dwSndAddr:1632 bit unique address for each device. Assume half the bits are set. We should never use more than 24 bits so using an average of 12 bits is closer to reality. wData:1216 bits of binary data. We are only using a maximum of 12 bits (12 bit A/D) and assume all the bits are set. This would only happen if the sensor was open (failure condition). wCRC1216 bit CRC of the message. Assume ¾ of the bits are set. ___ 50 1 bits in the message 9 * 10 bits = 90 Total bits in the message Within a 100 millisecond window the typical duty cycle would be: Duty Cycle = ( One’s Ratio * ( Bytes in Message * 10 Bit Character Time ) )/ 100 msec Duty Cycle = ( 50/90 * ( 9 * ( 10 * 1/4800 ) ) ) / 0.100 Duty Cycle = 104.2 e –3