TZH-MINIPORTABLE DATA LOGGING DEVICE

Wireless Mini Technical manual Implant Rev 1.2 Revision History Rev 1.0 - WCH 25/5/5 Rev 1.1 - WCH - 2/8/5 Rev 1.2 - WCH - 13/9/5 Rev 1.3 - WCH - 29/11/5 This manual covers the functionality of the RF circuitry (referred to as 'The RF Implant') in the Wireless Mini. For details of the logger circuitry and functionality please refer to the LCD Mini technical manual. 1 - Contents - 1.0 General description 1.1 Sleeping & Waking 1.2 Interfacing to the host system 1.3 Battery measurement 1.4 Local copies of information 1.5 In circuit serial programming 2.0 RF description 2.1 Hardware 2.2 Packet structure 2.3 Resynchronisation 3.0 Packets and Protocols 3.1 Packet formats 3.2 Specific packet types 3.3 Establishing communications 3.4 Reading data from a logger 3.4.1 The read process 3.4.2 Packets associated with reading the log buffer 3.5 Writing to a logger 3.5.1 The Write process 3.5.2 Packets associated with the write process 3.5.3 The program data structure 3.5.4 Restarting loggers with version 1.6 firmware 3.6 Security settings and Lease count 3.7 Status request 4.0 Code description 4.1 Breaking out of non-terminating loop 5.0 Memory map 5.1 Constants 2 Revision History 1.2 Status Reply packet type corrected (was 0x14, now is 0xF1) 1.3 GoToSleep packet introduced (packet 0x18) 3 1.0 General description The Wireless Mini is designed around the LCD Mini. In essence it incorporates a complete LCD Mini logger with an "RF Implant" attached. The code and functionality of the logger part are identical to the LCD Mini and the Implant simply allows data to be extracted via RF rather than direct connection. To this end the original code running on the Oki processor of the LCD Mini is 'unaware' of the RF circuitry and makes no allowance for it. The Implant, which is based around a PIC microcontroller, must trick the Oki processor into leaving the EEPROM alone when it wants to access it. This is detailed in section 1.2. The RF circuitry consists of two main blocks namely a PIC microcontroller and an RF transceiver (RFM TR1000/TR1001). This technical manual will discuss this circuitry and refer to it as the "Implant". For details of the logger part of the product please refer to the LCD Mini technical manual. The Implant has been designed so that it may be converted to add RF functionality to other products (e.g. iLog). It has been designed to be highly portable although some code modification will inevitably be necessary. The Implant is designed to be part of a multi-node network with one Master and many loggers. Obviously only one device can be transmitting at any one time but all loggers will be listening to all packets and will respond when uniquely addressed. The unique address is based on the logger's type and serial number. 1.1 Sleeping & Waking To be able to provide high speed communication over a respectable range the RF Implant processor must run at 4MHz and the RF receiving circuitry must be very sensitive, however the whole system must also draw less than 100uA. To achieve this it spends most of the time sleeping then for 4ms every 1/3 of a second it wakes up and listens for signal. If it receives a valid signal it will enter 'Active' mode where it is continuously listening. The cyclic wake up circuitry is simply a capacitor charging through a resistor (R23 and C15 on Rev 1.0 schematic). When the voltage on the cap. passes a threshold it triggers an interrupt to the PIC which pulls it out of sleep mode. The PIC in turn pulls the transceiver out of sleep mode and begins listening. At the same time it discharges the capacitor through R24. If a valid signal is not received within 4ms then the now discharged capacitor is released to begin charging again, the PIC goes to sleep and cycle repeats. A valid signal is defined as a complete WakeUp packet. The protocols are defined in Section 3.0. When another device, the Master, wants to find out what loggers are within range it broadcasts a series of Wake Up packets to all loggers. All loggers within range should hear at least one of these and enter Active mode. With the loggers attention it then broadcasts WhosThere? and the loggers reply in randomly selected time slots. The loggers identify themselves using a unique address and from then on the Master uses this to direct commands to individual loggers. While in active mode, if the logger does not detect any valid packets for a period of 60s then it switches back to its low power mode and begins the sleeping / waking process again. 1.2 Interfacing to the host system The LCD Mini was designed to communicate with other devices via RS232 at 2400 baud. This is far too slow for the purposes of radio communication. To get around this the Implant uses direct memory access to 4 the EEPROM. This however requires a trick because the Oki processor is unaware of the Implant so makes no allowance for memory sharing. Fortunately the Oki code will not access EEPROM when it is in 'comms mode'. When the Oki processor gets a message via RS232 it finishes any activities it is part way through then enters comms mode. While in this mode it does nothing more than monitor the comms lines and update its RTC. If there is no activity on the RS232 lines for 800ms or more then it resumes normal operation. When high speed reading of the EEPROM data is required, the Implant exploits this functionality by sending a message via RS232 to the Oki processor. Once it is satisfied that the Oki processor has entered comms mode, it directly accesses EEPROM at high speed. Each block of 64 data bytes is transferred to local PIC RAM, assembled into a packet then transmitted out over the RF link. After a valid 'Ack' is received from the Master the next packet is retrieved, assembled and sent. Because the Oki processor was originally set up to be the exclusive master on the I 2 C bus it is necessary to convert the the output driving the SCL line into an open collector port before attempting to drive it with another processor. This is done usin…

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LCD Mini ("The Intelligent") TECHNICAL MANUAL  ESCORT DATA LOGGING SYSTEMS Ltd 2004 21/9/05 V1.0e Page 1 LCD Mini: The Intelligent TECHNICAL MANUAL V1.0e FOR LCD Mini/DataSource/Wireless Mini mask revision 1.0 Revision history 1.0 JAL 12/5/04 - Renamed & edited LCD DataSource manual 1.8 1.0b JAL 7/9/04 - Bit 4 of User flags ($31 in EEPROM) set = Ext sensor 1.0c AS 04-05-2005 – Product Code definition 1.0d WCH 1/8/5 - RF f/w ver. stored in EEPROM 1.0e WCH 21/9/5 - List of features updated LCD Mini ("The Intelligent") TECHNICAL MANUAL  ESCORT DATA LOGGING SYSTEMS Ltd 2004 21/9/05 V1.0e Page 2 CONTENTS 1.0 General.......................................................................................................................3 1.1 Hardware.................................................................................................................5 1.2 Low battery indication...............................................................................................5 1.3 Reset......................................................................................................................5 1.4 Scalability................................................................................................................6 1.5 Time management....................................................................................................6 2.0 Communications..........................................................................................................7 2.1 Packet structure.......................................................................................................7 2.2 Accessing EEPROM................................................................................................8 2.3 Accessing RAM.......................................................................................................9 2.4 Reading the firmware version......................................................................................9 2.5 Reading the battery status.........................................................................................9 3.0 Program operation.......................................................................................................10 3.1 General...................................................................................................................10 3.2 Background logging.................................................................................................10 3.3 Setting a program....................................................................................................10 4.0 Alarms and Statistics..................................................................................................13 4.1 AlarmControl register...............................................................................................13 4.2 AlarmDelays register................................................................................................13 4.3 Upper and Lower alarm levels....................................................................................13 4.4 TimeOverTemperature / TimeUnderTemperature..........................................................14 4.5 Statistics................................................................................................................14 5.0 User options...............................................................................................................15 5.1 Lease option...........................................................................................................15 5.2 Security code..........................................................................................................15 5.3 Trip Count...............................................................................................................15 6.0 LCD operation.............................................................................................................16 6.1 Basic functionality...................................................................................................16 6.2 Main state...............................................................................................................16 6.3 Statistics State.......................................................................................................18 6.4 Alarms State...........................................................................................................18 Appendix A......................................................................................................................19 A.1 EEPROM Memory Map...........................................................................................19 A.2 RAM Memory Map..................................................................................................22 A.3 ADC Look-up tables................................................................................................25 Appendix C - Firmware revision history...............................................................................27 LCD Mini ("The Intelligent") TECHNICAL MANUAL  ESCORT DATA LOGGING SYSTEMS Ltd 2004 21/9/05 V1.0e Page 3 1.0 General The LCD Mini is very similar to the LCD DataSource and has been redesigned to fit in a new case with DB9 serial comms connector. Its core features are as follows: • Four digit LCD • One momentary action push-button switch • pressing and holding the button for more than one second will start logging • pulsing the button will cycle the display • RS232 communications using • a simple DB9 extension if logger not plugged directly onto computer • 2400 baud transmission rate • Single thermistor based temperature sensor covering a -40°F to +158°F range (-40°C to +70°C) • Accuracy of ±1.0°F (±0.5°C) • Temperature displayed in either units of Celsius or Fahrenheit • 18 month operating life from a user-replaceable battery • Low battery indication (only on PC or chartreader) • 1868 logs stored in non-v…

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1. What You Need ß ESCORT Console Software ß Wireless Mini data logger ß RS232 to DB9 or RS232 to USB cable ß REDi Wireless Receiver 2. Installing The Software ß Start your computer and insert your ESCORT Console software into your CDROM drive, or download ESCORT Console from our website www.escortdls.com. ß If downloading via the Internet, a popup will appear. Click the ‘RUN’ button. ß The software install wizard will appear. Select the language required to view the install wizard and click ‘Next’. ß The licence agreement will appear. Read the conditions and if accepted click Next. ß A screen will appear displaying information regarding ESCORT for Windows and ESCORT User Administration Software. If you are using either of these software packages please read the displayed information and click Next. If you are not using either of the stated packages just click Next. ß Enter ownership and user details relating to your software and click Next. ß Select the languages you require your software to be published in and click Next. ß If you are running ESCORT User Administration Software please follow the instructions displayed. If you are not running ESCORT User Administration software click ‘Next’. ß ESCORT Console software is now successfully installed on your computer. 3. Connecting A logger to your PC The Wireless Mini only requires a standard RS232 to DB9 or RS232 to USB cable to communicate with your PC: 1) RS232 to DB9 cable. 2) USB to RS232 cable (JA-USB-SER). Both of these cables are available for purchase from your local electronics store. Alternatively you are able to purchase the USB to RS232 cable from your ESCORT DLS distributor. Connecting the DB9 (9 pin) cable to your computer Plug the DB9 connector into the serial port located at the rear of your PC. Tighten the screws located either side of the connector, but Do not over tighten. Connecting the USB / RS232 cable to your computer There are three places on your PC where you may find a USB port. These are; The rear of your PC, on the front panel below the on button and on the side of some LCD screens. In some instances you may locate a USB connector on your keyboard, or may have a USB junction box. Once you have attached the USB cable to your PC you must install the required drivers. The drivers can be found on a disc supplied with the cable or downloadable via our website. Rear Front Screen 4. Console Serial Port Setup Once you have successfully installed your Console software, it can automatically check how many COM ports are located on your computer (including USB). ß Select the menu options EDIT > OPTIONS > COMMUNICATIONS and choose the relevant COM Port and click ‘OK’. 5. Console Product Setup You are required to select the ESCORT products that you want to communicate with. ß Select the menu options EDIT > OPTIONS > PRODUCTS and select the relevant Products listed and click ‘OK’. 6. Programming A Wireless Mini Start your computer and open your ESCORT Console software by selecting the ESCORT Console icon located on your desktop, or via the following menu options START > ALL PROGRAMS > ESCORT > CONSOLE. ß Select the Program & Configure icon from the Console taskbar, or select Action > Program & Configure from the dropdown menu or Control + P. ß The Program & Configure wizard will open and an information screen will appear. Click ‘Next’. ß The first window to appear on the program and configure wizard is a general information window. Please read this window and if you do not wish to see this window again when programming select the ‘Do not remind me again’ tick box. ß The second window to appear is search screen. Once your software has located a logger the window will display the loggers’ description, serial number and product code. To proceed select the ‘Next’ button. ß If your software is unable to locate a logger due to communication problems the following message will be displayed. Check all three bullet points displayed in this message. Program icon Do not remind me again tick box. Displays your logger’s description, serial number and product code. If communication errors occur check these three areas. Password protection If your logger has been issued a password to, your logger tick box will appear unchecked. If you select your loggers tick box the enter password box will appear. Enter the password in the field provided and select the ‘OK’ button. ß The next window to appear is the ‘Details’ window. Here you can add a description to your Wireless Mini, alter your password settings, view your loggers temperature range, add high and low alarm settings, change temperature scale (ºC or ºF) and set the number of readings before an alarm is raised . After entering the relevant details click ‘Next’. Adding a password It is possible to add a password to protect your logger upon programming and download. To enter a password first select the tick box for program and/or download and enter the designated password in the spaces provided. ß The next window to appear is the ‘Startup’ window. Here you are able to enter your logger’s trip duration, logging interval and start finish conditions. Please make the required selections and select click the ‘Next’ button. ß The next window to appear is the ‘Summary’ window. Here you are given a brief summary of the condition in which you have programmed your logger with. Note: In this screen your logger’s battery status is displayed if your logger has an insufficient battery life for its trip duration your software will not allow the logger to be programmed. If your loggers tick box is empty select it and the enter password box will appear Enter your logger password here Select required tick box. Enter the password required Logger battery status 7. Book-marking Readings ß A bookmark is an identification method used to locate a reading or time regarding an action that has taken place (e.g. the opening of a freezer door). You have the ability to ‘bookmark’ logger readings (maximum of 24 bookmarks) …

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ESCORT Data Logging Systems Ltd., New Zealand Mailing Address: PO Box 15-639, New Lynn, Auckland Offices: 1 Rankin Ave, New Lynn, Auckland Phone: +64 9 8260 960 Fax: +64 9 8260 285 E-mail: [email protected] Internet: www.EscortDLS.com 9 th February 2006 Federal Communications Commission To whom it may concern CONFIDENTIALITY REQUEST – FCC ID TZH-MINI Reference rule sections 0.457 (d) (ii) and pursuant to rule section 0.459 (a) confidentiality is requested as follows. Specific Information: Circuit diagrams, Schematic diagrams, Parts list This information contains trade secret information which is not routinely made available to the public or to our competitors. Disclosure of this information could result in an unfair advantage to our competitors. It should be treated as confidential for the duration of the Grant of Equipment Authorisation. Yours sincerely Andrew Maskill Managing Director

EMC Technologies (NZ) Ltd Test Report No 51104.1 Mini Report date: 10 November 2005 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 12 of 13 This report may not be reproduced except in full Internal Photos – Logger

EMC Technologies (NZ) Ltd Test Report No 51104.1b Mini Report date: 14 th March 2006 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 1 of 13 This report may not be reproduced except in full TEST REPORT Escort Wireless MINI Temperature Logger tested to the Code of Federal Regulations (CFR) 47 Part 15 – Radio Frequency Devices, Subpart C – Intentional Radiators Section 15.249 – Operation in the band 902 – 928 MHz for Escort Data Logging Systems Ltd This Test Report is issued with the authority of: ________________________________________ Andrew Cutler - General Manager EMC Technologies (NZ) Ltd Test Report No 51104.1b Mini Report date: 14 th March 2006 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 2 of 13 This report may not be reproduced except in full Table of Contents 1. CLIENT INFORMATION 3 2. DESCRIPTION OF TEST SAMPLE 3 3. SUMMARY OF TEST RESULTS 4 4. TEST SAMPLE DESCRIPTION 5 5. ATTESTATION 6 6. TRANSMITTER TEST RESULTS 7 7. TEST EQUIPMENT USED 10 8. ACCREDITATIONS 10 9. PHOTOGRAPHS 11 EMC Technologies (NZ) Ltd Test Report No 51104.1b Mini Report date: 14 th March 2006 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 3 of 13 This report may not be reproduced except in full 1. CLIENT INFORMATION Company Name Escort Data Logging Systems Ltd Address PO Box 15-639 New Lynn City Auckland Country New Zealand Contact Mr David Doo Phone 0064-9-826-0960 Email [email protected] 2. DESCRIPTION OF TEST SAMPLE Brand Name Escort Model Number Wireless MINI Part Number MI-OE-D-2-LR9 Product Temperature Logger Manufacturer Escort Data Logging System Country of Origin New Zealand Serial Number MI-BF-198-058 FCC ID TZH-MINI This report replaces report number 51104.1 Mini as it includes additional measurements required by Section 15.215. EMC Technologies (NZ) Ltd Test Report No 51104.1b Mini Report date: 14 th March 2006 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 4 of 13 This report may not be reproduced except in full 3. COMPLIANCE STATEMENT The Escort Wireless Mini Temperature Logger complies with 47 CFR Part 15 and in particular Sections, 15.205, 15.207, 15.209, 15.215 and 15.249 as detailed below CLAUSE TEST PERFORMED RESULT 15.109 Radiated emission limits Complies 15.203 Antenna requirement Complies 15.205 Operation in restricted bands Complies 15.207 Conducted emissions Not applicable 15.209 Radiated emissions Complies 15.215 (b) Spurious emissions do not exceed fundamental Complies (c) Additional provisions – 20 dB bandwidth Complies 15.249: (a) Field strength of fundamental Complies (a) Field strength of harmonics Complies (b) Fixed, point to point operations Not applicable (c) 3 metre measurement distance Noted (d) Spurious emission levels except harmonics Complies (e) Detectors above 1000 MHz Noted (f) Reference to section 15.37(d) Noted EMC Technologies (NZ) Ltd Test Report No 51104.1b Mini Report date: 14 th March 2006 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 5 of 13 This report may not be reproduced except in full 4. TEST SAMPLE DESCRIPTION The sample tested is a remote temperature logger that is interrogated by a handheld transceiver with all logged data being transferred to the handheld device. This data can then be downloaded to a personal computer at a latter time for analysis. Data Rate / Modulation system used 76.8 kbps Rated Transmitter Output Power 1.4 mW (+1.5 dBm) Antenna Type Permanently attached whip antenna. Test frequency 916.050 MHz Power Supply Internal batteries. Battery charging is not provided for. EMC Technologies (NZ) Ltd Test Report No 51104.1b Mini Report date: 14 th March 2006 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 6 of 13 This report may not …

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EMC Technologies (NZ) Ltd Test Report No 51104.1 Mini Report date: 10 November 2005 ____________________________________________________________________________________________________________________________________________________________________________ EMC Technologies (NZ) Ltd Telephone: +64 9 360 0862 Fax: +64 9 360 0861 STREET ADDRESS - 47 MacKelvie Street, Grey Lynn, Auckland, New Zealand E-mail: [email protected] POSTAL ADDRESS - PO Box 68 307, Newton, Auckland, New Zealand Web Site: www.emctech.com.au Page 13 of 13 This report may not be reproduced except in full Radiated emissions test set up: Logger