FCC ID: CN2U915 LOW POWER TRANSCEIVER MODULE

902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. Introduction Product Development TRX Integration Guide. 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 1 CONFIDENTIALITY NOTICE The information contained in this document is the exclusive, confidential and proprietary property of Cattron-Theimeg Inc. It is not to be reproduced, nor is it or any portion of it to be used by or disclosed to any other individual or legal entity, without the prior, written approval of Cattron-Theimeg Inc. Furthermore, the information contained within this document is also to be handled in accordance with any and all confidentiality agreements between Cattron-Theimeg Inc. and the user of this information. 2008 Cattron-Theimeg Inc. Cattron-Theimeg Inc. Proprietary and Confidential 1-1 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. Introduction Revision History Description Initial Version Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Signature / Date David A Stagg Date 5/23/07 mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy Revision 1.0 Cattron-Theimeg Inc. Proprietary and Confidential 1-2 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. Introduction Table of Contents 1.5.1. 2.1.1. 2.1.2. 2.1.3. 1.3.1. 1.3.2. 1.3.3. INTRODUCTION ........................................................................................................................................... 1-4 1. 1.1. PURPOSE......................................................................................................................................................... 1-4 SCOPE............................................................................................................................................................. 1-4 1.2. 1.3. DEFINITIONS, ACRONYMS, ABBREVIATIONS .................................................................................................. 1-4 Definitions ......................................................................................................................................... 1-4 Acronyms........................................................................................................................................... 1-4 Abbreviations..................................................................................................................................... 1-4 1.4. REFERENCES................................................................................................................................................... 1-5 1.5. OVERVIEW...................................................................................................................................................... 1-5 Notation Conventions ........................................................................................................................ 1-5 2. OVERALL DESCRIPTION........................................................................................................................... 2-1 2.1. PRODUCT PERSPECTIVE.................................................................................................................................. 2-1 User Interfaces................................................................................................................................... 2-1 Hardware Interfaces........................................................................................................................... 2-1 Software Interfaces ............................................................................................................................ 2-1 2.2. PRODUCT FUNCTIONS..................................................................................................................................... 2-1 2.3. USER CHARACTERISTICS ................................................................................................................................ 2-2 2.4. CONSTRAINTS................................................................................................................................................. 2-2 2.5. ASSUMPTIONS AND DEPENDENCIES................................................................................................................ 2-2 3. SPECIFIC REQUIREMENTS....................................................................................................................... 3-3 3.1. EXTERNAL INTERFACE REQUIREMENTS ......................................................................................................... 3-3 Interfaces ........................................................................................................................................... 3-3 3.1.1. 50 Pin Header I/O. ............................................................................................................................ 3-3 3.1.1.1 Software Interface Requirements....................................................................................................... 3-4 3.1.2. SYSTEM FEATURES......................................................................................................................................... 3-4 EEPROM........................................................................................................................................... 3-4 3.2.1. Output Power..................................................................................................................................... 3-4 3.2.2. Software Configurable....................................................................................................................... 3-4 3.2.3. Low Cost TCXO................................................................................................................................ 3-4 3.2.4. PERFORMANCE REQUIREMENTS ..................................................................................................................... 3-5 3.3.1. Frequency Range ............................................................................................................................... 3-5 3.3.2. Adjacent and co channel power ......................................................................................................... 3-5 3.3.3. Modulation......................................................................................................................................... 3-5 3.3.4. Duty Cycle......................................................................................................................................... 3-5 3.4. DESIGN CONSTRAINTS.................................................................................................................................... 3-5 3.4.1. Standards Compliance ....................................................................................................................... 3-5 3.4.2. Mechanical Dimensions..................................................................................................................... 3-6 3.4.3. Power Requirements.......................................................................................................................... 3-7 Software Requirements...................................................................................................................... 3-7 3.4.4. SYSTEM ATTRIBUTES ..................................................................................................................................... 3-8 3.5.1. Reliability .......................................................................................................................................... 3-8 Availability ........................................................................................................................................ 3-8 3.5.2. Security.............................................................................................................................................. 3-8 3.5.3. 3.5.4. Maintainability................................................................................................................................... 3-8 3.5.5. Portability .......................................................................................................................................... 3-8 3.5. 3.2. 3.3. Cattron-Theimeg Inc. Proprietary and Confidential 1-3 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 1. Introduction Introduction 1.1. Purpose This Document will provide the design constraints for the inclusion of the U915 TRX into a Cattron-Theimeg Inc. product capable of meeting the requirements of FCC part 15, this module will be configured by software and cover the frequency ranges of 902MHz to 928MHz. and power of up to 5mW. Modulation schemes supported will be, 2FSK 1.2. Scope This document is to define the requirements for this TRX to maintain operation within FCC rules and approved operation, to include. Transceiver interface. Supported protocols. Hardware target size. Software requirements. Operating band. 1.3. Definitions, Acronyms, Abbreviations 1.3.1. Definitions Anomaly. Anything observed in the documentation or operation of software that deviates from expectations based on previously verified software products or reference documents. A critical anomaly is one that must be resolved before the V&V effort proceeds to the next life- cycle phase. Third Party Testing. The verification testing required to be carried out by an authorized body. Acronyms 2FSK Modulation consisting of two distinct states. European Telecommunication Standards Institute European Norm (legal obligation) Federal Communication Commission 1.3.2. ETSI EN FCC SDD SRS SVVP Software Verification and Validation Plan SVVR Software Verification and Validation Report V&V Verification and Validation EMC Electromagnetic Compatibility SRD Software Design description system Requirements Specification Short Range Device 1.3.3. Abbreviations none Cattron-Theimeg Inc. Proprietary and Confidential 1-4 Introduction 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 1.4. References 1. FCC Emission Mask 1.5. Overview 1.5.1. Notation Conventions Throughout this document, functionality may be listed using the following syntactical conventions:

The use of shall implies a requirement that must be implemented. Cattron-Theimeg Inc. Proprietary and Confidential 1-5 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 2. Overall Description Specific Requirements 2.1. Product Perspective This Radio module version is constrained to 902-928MHz, 0dBm to 5dBm, FSK modulation and some restriction on maximum duty cycle if secondary antennas are used. The Radio modules is to achieve full interchangeability between product model lines, maintaining mechanical and software interfaces as well as physical dimensions is a general objective. 2.1.1. User Interfaces All interface between this module and the User will be software controlled by the product hosting this module. Features such as Frequency, Power and Modulation are all controlled by the Host device. 2.1.2. Hardware Interfaces This product will have two hardware interfaces, these are the RF Port and a 50 pin I/O connector carrying the microcontroller interface and power lines. The 50 pin interface will have a 4 wire serial interface, consisting of Clock in, Data out, Data in and Load. Power: 3V3 and E2Prom 3-5V I2C interface to store personality. Data I/O 1 wire out 1 wire in Chip enable 1 wire. Software Interfaces 2.1.3. This module will require the configuration of Data Registers by the operating firmware that set the operating parameters. The AE system will provide the operational parameters to the operating firmware. Frequency, Power, Tx/Rx Mode. 2.2. Product Functions The Product shall have the capacity to hold a permanent configuration file The Product shall be software configurable The Operating frequency shall be Programmable The Modulation Deviation shall be programmable The output power is programmable Cattron-Theimeg Inc. Proprietary and Confidential 2-1 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. Specific Requirements 2.3. User Characteristics Operators: Require no knowledge of this part, all configuration is taken care of in the engineered product. Technicians: The programming of this device is effected by the connected encoder, the encoder can choose to program the device according to its own programming or it can take the configuration table from the eeprom on the radio module. Therefore the radio module may be independently programmed with the register table, or programmed by the controller housing it. 2.4. Constraints This subsection describes any items that limit the developers options. These include:

FCC Part 15 rules EN301-489 Physical size for interchangeability with Unity products and current Cattron Toggle and Paddle. RF Connector type MMCX Limitation of Human body exposure. Interconnectivity compatibility with URM physical interface. Interconnectivity compatibility with URM programming interface. 2.5. Assumptions and Dependencies It is assumed that this device may need to be revised if any of the constraints change. Any actual changes will require further FCC submissions for approvals. Cattron-Theimeg Inc. Proprietary and Confidential 2-2 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 3. Specific Requirements Specific Requirements 3.1. External Interface Requirements 3.1.1. Interfaces 3.1.1.1 50 Pin Header I/O. PIN Label 1,2 RFVBAT 3,4 GND 5-14 N/C 15 SWD 16-19 N/C 20 DATCLK ENA 21 GND 22 PAON 23 PLE 24 TRDAT 25 TXD 26 3V3 27 3V3/5V 28 N/C 29 PCLK 30 PDI 31 PDO 32 33 RXD1 34 MUX 35-37 N/U SDA 38 SCL 39 N/U 40 41 G8 N/U 42 43 G16 44-50 N/U Description Switched Battery voltage - Not Used. O/P, Sync Word Detect, Not Used I/O, Clock, When in RX mode leading edge is synchronous with RX Data, When in TX mode data is latched in on leading edge. IF in UART mode used to output TX Data. I/P, Enable RF deck when High. I/P, RF Power ON and switch to TX mode when High. I/P, Load Enable, Control Data is latched into registers when High Data I/O when synchronous, RX data OUT when asynchronous. TX in when asynchronous (Fit R35) Regulated input for synthesizer. Regulated input for E2PROM I/P, Control Register Clock, data clocked on rising edge. I/P, Control Register data read in. O/P, Control Register data read out, MSB first. May be used to output Received Data (Fit R35). O/P, TRX status, Not Used. TRX E2PROM TRX E2PROM I/P, PA +8dB Gain, Not Used I/P, PA +16dB Gain, Not Used 3.1.1.2 RF Antenna Port MMCX type connector. Cattron-Theimeg Inc. Proprietary and Confidential 3-3 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. Specific Requirements Software Interface Requirements 3.1.2. Software requirements are generally as required to implement the interface indicated above, more specifically The RXD and TXD lines will need to have a direct microprocessor interface with baud rates able to cope with the maximum communication rate, a variable dependant on operating mode, this version is limited to 4,000baud. Power Amplifier control PA-ON may be implemented through a latch, (further power control is available through the Synthesizer control registers.) Standby will power down the RF device and can be implemented through a latch. The I2C interface has no specific speed requirements but security of data transferred shall be verified. 3.2. System Features 3.2.1. EEPROM Onboard EEPROM for storing one or more defined RF Personalities. 3.2.1.1. EEPROM Functional Requirements I2C Bus Memory Size 8KB CRC Data Protection HD>6 3.2.1.2. EEPROM Repository The EEPROM on this module may be configured to hold a personality database of the registers required for the synthesizer programming as well as various yet to be defined configuration data, such information may include Power, including a gain calibration value. Frequency , or a table of Frequencies Skip frequency table Data Format. 3.2.2. Output Power Synthesizer output power is programmable up to 5mW . Software Configurable 3.2.3. Synthesizer operation is software configurable, both in Transmit and Receive modes, refer to the data sheet for full and up to date details. 3.2.4. Low Cost TCXO A low cost 10PPM TCXO is used. Cattron-Theimeg Inc. Proprietary and Confidential 3-4 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 3.3. Performance Requirements Specific Requirements 3.3.1. Frequency Range 902MHz to 928MHz 3.3.2. Adjacent and co channel power To remain within FCC part 15 limits. 3.3.3. Modulation 2FSK Programmable deviation. NB: The product of Modulating rate and Deviation shall not cause the FCC part 15 mask limits to be exceeded. 3.3.4. Duty Cycle If the integral; antenna is used then no restriction exists on Duty Cycle. If either of the two specific 3dB gain antennas approved for use are used then a duty cycle limit of 25% must be maintained. 3.4. Design Constraints Standards Compliance 3.4.1. EN301-489-3 EMC Immunity Short Range Devices FCC Part 15 @ 5mW, (normal keyed modulation applies) EN61000-6-2:2001 EMC Immunity SARS Human body exposure limits. Cattron-Theimeg Inc. Proprietary and Confidential 3-5 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 3.4.2. Mechanical Dimensions U915 TRX outline Specific Requirements Cattron-Theimeg Inc. Proprietary and Confidential 3-6 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. Specific Requirements Power Requirements 3.4.3. There are two power sources required for operation 3V3: 3V+- 10% @ 100mA 3V3 EEPROM : 3V+-10% @ 100mA 3.4.4. Software Requirements 3.4.4.1. Overall Timing TX Mode The control of the ENA, PA-ON, lines need to be sequenced to comply with the following general sequence. Overall Generalized Timing sequence 3.4.4.2. Register Program Sequence TX Mode After CE low, Wait for regulator ready Wait for >1mS for all to settle 1. 2 3 4 5 6 7 Program Registers as defined in data sheet Set PA_ON = 1 switches on PA, & Ant SW to TX, Program synth to TX power ON Output Data Program synth TX power OFF Set PA_ON = 0 switch off PA, & Ant SW to RX, Take CE low powers down RF deck Wait 5mS Cattron-Theimeg Inc. Proprietary and Confidential 3-7 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev. 3.5. System Attributes Specific Requirements 3.5.1. Reliability All design aspect of this module shall be maintained within Agile along with all supporting documentation and data sheets for future reference. Maintenance of, Manufacturing, Re-design, Approvals and Testing and continuous improvement shall fall within the requirements of the quality control system. 3.5.2. Availability P.O.S.T and ongoing system checks should be employed to check system availability and continued stability. Security 3.5.3. The data within the onboard EEPROM, personality array shall be protected by a CRC with a HD>=6 3.5.4. Maintainability As most aspects of this module are software configurable, little maintenance is likely to be needed, Tuning is minimized Specific configuration data may be stored within the Personality EEPROM. Adjustments are minimal, and are limited to TCXO tuning. Portability 3.5.5. It is envisaged that all Radio modules will be transferable between different encoders and decoders. FCC WARNING STATEMENT THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND

(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USERS AUTHORITY TO OPERATE THE EQUIPMENT. Only the following authorized antennas may be used with the equipment:

Childs 3DB-806 9D08-7833-A001 Nearson S467TR-915S Cattron-Theimeg Inc. Proprietary and Confidential 3-8

902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 Introduction Product Development TRX Integration Guide. 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 CONFIDENTIALITY NOTICE The information contained in this document is the exclusive, confidential and proprietary property of Cattron-Theimeg Inc. It is not to be reproduced, nor is it or any portion of it to be used by or disclosed to any other individual or legal entity, without the prior, written approval of Cattron-Theimeg Inc. Furthermore, the information contained within this document is also to be handled in accordance with any and all confidentiality agreements between Cattron-Theimeg Inc. and the user of this information. 2014 Cattron-Theimeg Inc. Cattron-Theimeg Inc. Proprietary and Confidential 1-1

902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 Introduction Revision History Description Initial Version Antenna information added for different applications Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Prepared Verified Approved Signature / Date David A Stagg H. Lin Date 5/23/07 02/15/14 mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy mm/dd/yy Revision 1.0 2.0 Cattron-Theimeg Inc. Proprietary and Confidential 1-2 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 Introduction Table of Contents 1.5.1. 1.3.1. 1.3.2. 1.3.3. 2.1.1. 2.1.2. 2.1.3. 1. INTRODUCTION ............................................................................................................................................1-4 1.1. PURPOSE ..........................................................................................................................................................1-4 1.2. SCOPE ..............................................................................................................................................................1-4 1.3. DEFINITIONS, ACRONYMS, ABBREVIATIONS ...................................................................................................1-4 Definitions ..........................................................................................................................................1-4 Acronyms ............................................................................................................................................1-4 Abbreviations ......................................................................................................................................1-4 1.4. REFERENCES ....................................................................................................................................................1-5 1.5. OVERVIEW.......................................................................................................................................................1-5 Notation Conventions .........................................................................................................................1-5 2. OVERALL DESCRIPTION ............................................................................................................................2-1 PRODUCT PERSPECTIVE ...................................................................................................................................2-1 2.1. User Interfaces ....................................................................................................................................2-1 Hardware Interfaces ............................................................................................................................2-1 Software Interfaces .............................................................................................................................2-1 2.2. PRODUCT FUNCTIONS ......................................................................................................................................2-1 2.3. USER CHARACTERISTICS .................................................................................................................................2-2 2.4. CONSTRAINTS ..................................................................................................................................................2-2 2.5. ASSUMPTIONS AND DEPENDENCIES .................................................................................................................2-2 3. SPECIFIC REQUIREMENTS ........................................................................................................................3-3 3.1. EXTERNAL INTERFACE REQUIREMENTS ..........................................................................................................3-3 Interfaces.............................................................................................................................................3-3 50 Pin Header I/O. .............................................................................................................................3-3 Software Interface Requirements ........................................................................................................3-4 SYSTEM FEATURES ..........................................................................................................................................3-4 EEPROM ............................................................................................................................................3-4 Output Power ......................................................................................................................................3-4 Software Configurable ........................................................................................................................3-4 Low Cost TCXO .................................................................................................................................3-4 PERFORMANCE REQUIREMENTS ......................................................................................................................3-5 3.3.1. Frequency Range ................................................................................................................................3-5 3.3.2. Adjacent and co channel power ..........................................................................................................3-5 3.3.3. Modulation ..........................................................................................................................................3-5 3.3.4. Duty Cycle ..........................................................................................................................................3-5 3.4. DESIGN CONSTRAINTS .....................................................................................................................................3-5 Standards Compliance ........................................................................................................................3-5 3.4.1. 3.4.2. Mechanical Dimensions ......................................................................................................................3-6 Power Requirements ...........................................................................................................................3-7 3.4.3. 3.4.4. Software Requirements .......................................................................................................................3-7 SYSTEM ATTRIBUTES ......................................................................................................................................3-8 Reliability ...........................................................................................................................................3-8 3.5.1. Availability .........................................................................................................................................3-8 3.5.2. 3.5.3. Security ...............................................................................................................................................3-8 3.5.4. Maintainability ....................................................................................................................................3-8 3.5.5. Portability ...........................................................................................................................................3-8 3.2.1. 3.2.2. 3.2.3. 3.2.4. 3.1.1. 3.1.1.1 3.1.2. 3.2. 3.3. 3.5. Cattron-Theimeg Inc. Proprietary and Confidential 1-3 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 1. Introduction Introduction 1.1. Purpose This Document will provide the design constraints for the inclusion of the U915 TRX into a Cattron-Theimeg Inc. product capable of meeting the requirements of FCC part 15, this module will be configured by software and cover the frequency ranges of 902MHz to 928MHz. and power of up to 5mW. Modulation schemes supported will be, 2FSK 1.2. Scope This document is to define the requirements for this TRX to maintain operation within FCC rules and approved operation, to include. Transceiver interface. Supported protocols. Hardware target size. Software requirements. Operating band. 1.3. Definitions, Acronyms, Abbreviations 1.3.1. Definitions Anomaly. Anything observed in the documentation or operation of software that deviates from expectations based on previously verified software products or reference documents. A critical anomaly is one that must be resolved before the V&V effort proceeds to the next life- cycle phase. Third Party Testing. The verification testing required to be carried out by an authorized body. Acronyms 2FSK Modulation consisting of two distinct states. European Telecommunication Standards Institute European Norm (legal obligation) Federal Communication Commission 1.3.2. ETSI EN FCC SDD SRS SVVP Software Verification and Validation Plan SVVR Software Verification and Validation Report V&V Verification and Validation EMC Electromagnetic Compatibility SRD Software Design description system Requirements Specification Short Range Device 1.3.3. Abbreviations none Cattron-Theimeg Inc. Proprietary and Confidential 1-4 Introduction 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 1.4. References 1. FCC Emission Mask 1.5. Overview 1.5.1. Notation Conventions Throughout this document, functionality may be listed using the following syntactical conventions:

The use of shall implies a requirement that must be implemented. Cattron-Theimeg Inc. Proprietary and Confidential 1-5 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 2. Overall Description Specific Requirements 2.1. Product Perspective This Radio module version is constrained to 902-928MHz, 0dBm to 5dBm, FSK modulation and some restriction on maximum duty cycle if secondary antennas are used. The Radio modules is to achieve full interchangeability between product model lines, maintaining mechanical and software interfaces as well as physical dimensions is a general objective. 2.1.1. User Interfaces All interface between this module and the User will be software controlled by the product hosting this module. Features such as Frequency, Power and Modulation are all controlled by the Host device. 2.1.2. Hardware Interfaces This product will have two hardware interfaces; these are the RF Port and a 50 pin I/O connector carrying the microcontroller interface and power lines. The 50 pin interface will have a 4 wire serial interface, consisting of Clock in, Data out, Data in and Load. Power: 3V3 and E2Prom 3-5V I2C interface to store personality. Data I/O 1 wire out 1 wire in Chip enable 1 wire. Software Interfaces 2.1.3. This module will require the configuration of Data Registers by the operating firmware that set the operating parameters. The AE system will provide the operational parameters to the operating firmware. Frequency, Power, Tx/Rx Mode. 2.2. Product Functions The Product shall have the capacity to hold a permanent configuration file The Product shall be software configurable The Operating frequency shall be Programmable The Modulation Deviation shall be programmable The output power is programmable Cattron-Theimeg Inc. Proprietary and Confidential 2-1 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 Specific Requirements 2.3. User Characteristics Operators: Require no knowledge of this part, all configuration is taken care of in the engineered product. Technicians: The programming of this device is effected by the connected encoder, the encoder can choose to program the device according to its own programming or it can take the configuration table from the eeprom on the radio module. Therefore the radio module may be independently programmed with the register table, or programmed by the controller housing it. 2.4. Constraints This subsection describes any items that limit the developers options. These include:

FCC Part 15 rules EN301-489 Physical size for interchangeability with Unity products and current Cattron Toggle and Paddle. RF Connector type MMCX Limitation of Human body exposure. Interconnectivity compatibility with URM physical interface. Interconnectivity compatibility with URM programming interface. 2.5. Assumptions and Dependencies It is assumed that this device may need to be revised if any of the constraints change. Any actual changes will require further FCC submissions for approvals. Cattron-Theimeg Inc. Proprietary and Confidential 2-2 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 3. Specific Requirements Specific Requirements 3.1. External Interface Requirements 3.1.1. Interfaces 3.1.1.1 50 Pin Header I/O. PIN Label 1,2 RFVBAT 3,4 GND 5-14 N/C 15 SWD 16-19 N/C 20 DATCLK ENA 21 GND 22 PAON 23 PLE 24 TRDAT 25 TXD 26 3V3 27 3V3/5V 28 N/C 29 PCLK 30 PDI 31 PDO 32 RXD1 33 34 MUX 35-37 N/U SDA 38 SCL 39 40 N/U G8 41 N/U 42 43 G16 44-50 N/U Description Switched Battery voltage - Not Used. O/P, Sync Word Detect, Not Used I/O, Clock, When in RX mode leading edge is synchronous with RX Data, When in TX mode data is latched in on leading edge. IF in UART mode used to output TX Data. I/P, Enable RF deck when High. I/P, RF Power ON and switch to TX mode when High. I/P, Load Enable, Control Data is latched into registers when High Data I/O when synchronous, RX data OUT when asynchronous. TX in when asynchronous (Fit R35) Regulated input for synthesizer. Regulated input for E2PROM I/P, Control Register Clock, data clocked on rising edge. I/P, Control Register data read in. O/P, Control Register data read out, MSB first. May be used to output Received Data (Fit R35). O/P, TRX status, Not Used. TRX E2PROM TRX E2PROM I/P, PA +8dB Gain, Not Used I/P, PA +16dB Gain, Not Used 3.1.1.2 RF Antenna Port MMCX type connector. Cattron-Theimeg Inc. Proprietary and Confidential 3-3 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 Specific Requirements Software Interface Requirements 3.1.2. Software requirements are generally as required to implement the interface indicated above, more specifically The RXD and TXD lines will need to have a direct microprocessor interface with baud rates able to cope with the maximum communication rate, a variable dependant on operating mode, this version is limited to 4,000baud. Power Amplifier control PA-ON may be implemented through a latch, (further power control is available through the Synthesizer control registers.) Standby will power down the RF device and can be implemented through a latch. The I2C interface has no specific speed requirements but security of data transferred shall be verified. 3.2. System Features 3.2.1. EEPROM Onboard EEPROM for storing one or more defined RF Personalities. I2C Bus 3.2.1.1. EEPROM Functional Requirements Memory Size 8KB CRC Data Protection HD>6 3.2.1.2. EEPROM Repository The EEPROM on this module may be configured to hold a personality database of the registers required for the synthesizer programming as well as various yet to be defined configuration data, such information may include:

Power, including a gain calibration value. Frequency , or a table of Frequencies Skip frequency table Data Format. 3.2.2. Output Power Synthesizer output power is programmable up to 5mW . Software Configurable 3.2.3. Synthesizer operation is software configurable, both in Transmit and Receive modes, refer to the data sheet for full and up to date details. 3.2.4. Low Cost TCXO A low cost 10PPM TCXO is used. Cattron-Theimeg Inc. Proprietary and Confidential 3-4 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 3.3. Performance Requirements Specific Requirements 3.3.1. Frequency Range 902MHz to 928MHz 3.3.2. Adjacent and co channel power To remain within FCC part 15 limits. 3.3.3. Modulation 2FSK Programmable deviation. NB: The product of Modulating rate and Deviation shall not cause the FCC part 15 mask limits to be exceeded. 3.3.4. Duty Cycle If the integral; antenna is used then no restriction exists on Duty Cycle. If either of the two specific 3dB gain antennas approved for use are used then a duty cycle limit of 25% must be maintained. 3.4. Design Constraints Standards Compliance 3.4.1. EN301-489-3 EMC Immunity Short Range Devices FCC Part 15 @ 5mW, (normal keyed modulation applies) EN61000-6-2:2001 EMC Immunity SARS Human body exposure limits. Cattron-Theimeg Inc. Proprietary and Confidential 3-5 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 3.4.2. Mechanical Dimensions U915 TRX outline Specific Requirements Cattron-Theimeg Inc. Proprietary and Confidential 3-6 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 Specific Requirements Power Requirements 3.4.3. There are two power sources required for operation 3V3: 3V+- 10% @ 100mA 3V3 EEPROM : 3V+-10% @ 100mA 3.4.4. Software Requirements 3.4.4.1. Overall Timing TX Mode The control of the ENA, PA-ON, lines need to be sequenced to comply with the following general sequence. Overall Generalized Timing sequence 3.4.4.2. Register Program Sequence TX Mode After CE low, Wait for regulator ready Wait for >1mS for all to settle 1. 2 3 4 5 6 7 Program Registers as defined in data sheet Set PA_ON = 1 switches on PA, & Ant SW to TX, Program synth to TX power ON Output Data Program synth TX power OFF Set PA_ON = 0 switch off PA, & Ant SW to RX, Take CE low powers down RF deck Wait 5mS Cattron-Theimeg Inc. Proprietary and Confidential 3-7 902-928MHz FSK version Document p/n: 9S01-U915-A201, rev.2 3.5. System Attributes Specific Requirements 3.5.1. Reliability All design aspect of this module shall be maintained within Agile along with all supporting documentation and data sheets for future reference. Maintenance of, Manufacturing, Re-design, Approvals and Testing and continuous improvement shall fall within the requirements of the quality control system. 3.5.2. Availability P.O.S.T and ongoing system checks should be employed to check system availability and continued stability. Security 3.5.3. The data within the onboard EEPROM, personality array shall be protected by a CRC with a HD>=6 3.5.4. Maintainability As most aspects of this module are software configurable, little maintenance is likely to be needed, Tuning is minimized Specific configuration data may be stored within the Personality EEPROM. Adjustments are minimal, and are limited to TCXO tuning. Portability 3.5.5. It is envisaged that all Radio modules will be transferable between different encoders and decoders. FCC WARNING STATEMENT THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USERS AUTHORITY TO OPERATE THE EQUIPMENT. Only the following authorized antennas may be used with the equipment:

Childs 3DB-806 9D08-7833-A001 Nearson S467TR-915S 2PCA-8339-X501 Cattron-Theimeg Inc. Proprietary and Confidential 3-8