MOTOROLA 3G PCIe Half Mini Card User Guide HTM1000 PCIe Half Mini Card User Guide DOCUMENT CONTROL NUMBER:
Version No.: 1.0 Date: 7/01/2009 Copyright 2003 - 2009 Motorola Inc. All rights reserved. This document and the information contained in it is CONFIDENTIAL INFORMATION of Motorola, and shall not be used, published, disclosed, or disseminated outside of Motorola in whole or in part without Motorolas consent. This document contains trade secrets of Motorola. Copyright notice does not imply publication of this document. Motorola Confidential Proprietary Disclosed Under NDA Page 1 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide HTM1000 PCIE HALF MINI CARD......................................................................................................... 1 USER GUIDE ............................................................................................................................................... 1 1. INTRODUCTION............................................................................................................................... 4 1.1 REVISION HISTORY ........................................................................................................................... 4 1.2 PURPOSE ........................................................................................................................................... 4 1.3 SCOPE ............................................................................................................................................... 4 1.4 TARGET AUDIENCE........................................................................................................................... 4 1.5 ABBREVIATIONS ............................................................................................................................... 5 2. PRODUCT OVERVIEW ................................................................................................................... 6 3. HARDWARE ARCHITECTURE..................................................................................................... 7 4. HTM1000 DATA CARD FEATURE SUMMARY .......................................................................... 7 4.1 HARDWARE REVISION: P2B.............................................................................................................. 7 4.2 2G..................................................................................................................................................... 7 4.3 3G..................................................................................................................................................... 8 4.4 ADVANCED SERVICES....................................................................................................................... 8 4.5 AUDIO............................................................................................................................................... 8 4.6 EXTERNAL MEMORY ........................................................................................................................ 8 4.7 SYSTEM REQUIREMENTS................................................................................................................... 8 4.8 SECURITY.......................................................................................................................................... 8 4.9 CONNECTIVITY ................................................................................................................................. 8 POWER UP SEQUENCE.................................................................................................................. 9 4.10 4.11 POWER CONSUMPTION................................................................................................................. 9 5. MECHANICAL SPECIFICATIONS.............................................................................................. 10 5.1.1 Electrical Specification......................................................................................................... 10 5.1.2 Mechanical Specification...................................................................................................... 10 Thermal Specification........................................................................................................... 10 5.1.3 6. DATA CARD INTERFACES.......................................................................................................... 10 PCIe Interface....................................................................................................................... 10 SIM Interface........................................................................................................................ 12 Audio Interface ..................................................................................................................... 12 7. AT COMMANDS.............................................................................................................................. 12 Network Connection Management........................................................................................ 13 7.1.1 Registration or Mobility Management.................................................................................. 13 7.1.2 7.1.3 SMS....................................................................................................................................... 14 7.1.4 USIM and Phonebook........................................................................................................... 14 8. NVM/FLASH .................................................................................................................................... 14 9. RF CALIBRATION/PHASING ...................................................................................................... 15 10. HARDWARE INSTALLATION..................................................................................................... 15 HTM1000 DATA CARD INSTALLATION...................................................................................... 15 11. MOTOROLA DATA CARD DRIVER INSTALLATION ........................................................... 18 12. LIVE NETWORK CONNECTION ................................................................................................ 21 SETTING UP DIAL UP NETWORKING (DUN) CONNECTION USING DATA CARD AS A MODEM..... 21 TROUBLE SHOOTING LIVE NETWORK CONNECTION .................................................................. 28 6.1.1 6.1.2 6.1.3 12.1 12.2 10.1 Motorola Confidential Proprietary Disclosed Under NDA Page 2 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 13. KNOWN ISSUES.............................................................................................................................. 28 P2B HW REVISION..................................................................................................................... 28 13.1 Motorola Confidential Proprietary Disclosed Under NDA Page 3 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 1. Introduction 1.1 Revision History Revision Date July 2009 1.0 1.2 Purpose Author Customer Operations Description Initial Draft This document describes the product design and specification for HTM1000 half mini PCIe card. HTM1000 supports multi-mode (2G/3G) with HSDPA/HSUPA capabilities. 1.3 Scope This document describes: the platform architecture, the hardware / software interactions, Technical/Electrical Specifications. 1.4 Target Audience This document is intended to provide a design specification for the teams involved in and an introduction to the platform for product integration teams. Motorola Confidential Proprietary Disclosed Under NDA Page 4 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 1.5 Abbreviations AES AGPS AMR-NB AMR-WB AP BP DES DDR DTM DUN EDGE EFR FM FPS FR GEA GPRS GPS GSM HR HS HSDPA HSUPA IMEI IMS IPC NAND OHA OMA OTG PCI PMIC RF SAM SDRAM SIM UEA UICC USB USIM W3G WCDMA WLAN WWAN Advanced Encryption Standard Assisted Global Positioning System Adaptive Multi-Rate Narrow Band Adaptive Multi-Rate Wide Band Applications Processor Baseband Processor Data Encryption Standard Double Data Rate Dual Transfer Mode Dial Up Networking Enhanced Data rate for GSM Evolution Enhanced Full Rate Frequency Modulation Frames-Per-Second Full Rate GSM Encryption Algorithm General Packet Radio Service Global Positioning System Global System for Mobile communications Half Rate High Speed High-Speed Downlink Packet Access High-Speed Uplink Packet Access International Mobile Equipment Identity IP Multimedia Subsystems Inter Processor Communications Not AND (electronic logic gate) Open Handset Alliance Open Mobile Alliance On-The-Go Peripheral Component Interconnect Power Management IC Radio Frequency Stand Alone Modem Synchronous Dynamic Random Access Memory Subscriber Identity Module UMTS Encryption Algorithm Universal Integrated Circuit Card Universal Serial Bus Universal SIM Wrigley3G (Motorola 3G baseband processor) Wideband Code Division Multiple Access Wireless Local Area Network Wireless Wide Area Network Motorola Confidential Proprietary Disclosed Under NDA Page 5 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 2. Product Overview HTM1000 is a half mini data card supporting tri-band HSPA and quad-band EDGE/GPRS, with data rates of up to 10.1Mbps downlink and 5.76Mbps uplink. It complies with PCIe Mini CEM spec, version 1.2. HTM1000 is based on a custom 3G baseband processor that was developed by Motorola. Other main hardware components on this platform are the RF transceiver from Infineon, the Power Management IC, the RF analog front end and Power amplifiers. HTM1000 has external DDR SDRAM and NAND flash memories, packaged on top of the baseband processor (POP). HTM1000 uses USB signals on PCIe interface to connect with a PC, netbook or MID. HTM1000 uses 3.3V power supply on PCIe interface for power up. Main Antenna Aux Antenna Top View Bottom View Figure 1 -HTM 1000 Half Mini PCIe card (Top and Bottom views) Motorola Confidential Proprietary Disclosed Under NDA Page 6 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 3. Hardware Architecture NAND FLASH DDR Baseband Processor 3G DigRF RFIC
+FE+PAs PMIC HS-USB D+/D-
PCI Express connector USIM WWAN LED Half Mini Card PC Figure 2 HTM1000 high level block diagram 4. HTM1000 Data Card Feature Summary Key capabilities for the data card and associated features of the platform are listed below. The following summary describes some of the platform capabilities. 4.1 Hardware Revision: P2B 4.2 2G Release 6 compliant Quad-band GSM 850/900/1800/1900 MHz Motorola Confidential Proprietary Disclosed Under NDA Page 7 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide GPRS Class 12 EDGE Class 12 DTM Class 11 (unused because no voice) A5/1-3 (unused because no voice) and GEA/1-3 Encryption DARP 4.3 3G Release 6 compliant Frequency Bands o 850/1900/2100 MHz (Supported) o 900/1900/2100 MHz (Available upon request) o 1700/1900 MHz (Available upon request) WCDMA 384kbps uplink (UL) 384kbps downlink (DL) HSDPA 7.2 / 10.1 Mbps HSUPA 1.46 / 2 / 5.76 Mbps UEA01, UEA02, UIA1, UIA2 Encryption 3G Rx Diversity in all bands 4.4 Advanced Services GPS is not supported in this revision of the data card. 4.5 Audio Audio is not supported in this revision of the data card. Audio is supported in hardware via PCM signals in data card revisions of P2B and higher. External audio codecs are required to process PCM data from baseband. 4.6 External Memory 64MB64MByte NAND Flash Memory 32MB32MByte DDR-333 166 MHz clock SDRAM 4.7 System Requirements Linux Android Kernel in the ARM9 of the W3G VTRXmc in the C55x+ of the W3G 4.8 Security High Assurance Boot with Multiple Super Root Key Support MD5, SHA-1, SHA-256, 3DES, AES 128, RC4, RSA Subsidy Lock IMEI Protection 4.9 Connectivity SIM or UICC (SIM and USIM) Motorola Confidential Proprietary Disclosed Under NDA Page 8 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide USB client 2.0 HS Support (PC connectivity) EMU local Bus Support 3GDigRF RF interface version 3.07 4.10 Power Up Sequence The main power management function is performed by Power management IC
(CPCAP), which receives its voltage input from the PCIe interface. 3.3V on PCIe interface supplies power to PMIC. CPCAP manages all data card power; it includes 2 bucks, 1 boost and 8 linear regulators. 4.11 Power Consumption Following table shows data card power consumption. Typical Power Supply HSDPA 7.2Mbps download @ 0dBm EDGE 4RX 200kbps Idle Mode Sleep Mode (radio disabled) 3.3V DC
< 1.5W
< 0.5W
< 20mW
< 10mW Motorola Confidential Proprietary Disclosed Under NDA Page 9 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 5. Mechanical Specifications 5.1.1 Electrical Specification HTM1000 powers up using 3.3V supply on PCIe interface. The supply voltage should be within 9% of 3.3v. 5.1.2 Mechanical Specification Physical dimensions of the card are: 30mm x 26.8mm x 4.35mm (Double sided) Weight: 5g TM1000 is -10oC to +65oC. Data Card Interfaces 5.1.3 Thermal Specification Operating temperature range for H 6. 6.1.1 PCIe Interface HTM1000 connects wit h netbook, notebook or MID using PCIe interface. HTM1000 uses USB interface on PCIe interface. Electrically the PCI Express card will be seen as a USB device since it uses standard USB2.0 connection. Power is supplied by motherboard. A SIM card must be provided by PC manufacturer for user authentication. connected from PC to the card; this allows A the user to be able to enable/disable RF activity (Airplane mode) on demand. Radio disable (W_Disable) signal is Motorola Confidential Proprietary Disclosed Under NDA Page 10 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide The card controls one of the PCs LED to indicate RF activity has been disabled or enabled. To summarize main characteristics of PCIe are as follows:
Standard USB interface 3.3V power supply from motherboard is used. Voltage should be with Max current is 1.1A averaged over 1sec, 2.75A averaged over 100s. W_DISABLE is used to enable/disable to RF activity: 30s to disable, 1s in 9% of 3.3V. to enable. PC WWAN LED is controlled by HTM1000. The following table shows signals on PCIe interface. PIN Number PCIe Spec HTM1000 data card Pin Number 51 49 47 45 43 41 39 37 35 33 31 29 27 25 23 21 19 17 15 13 11 9 Reserved Reserved Reserved Reserved GND GND
+3.3Vaux +3.3Vaux
+3.3Vaux +3.3Vaux GND GND PETp0 PETn0 GND GND PERp0 PERn0 GND Reserved Reserved GND REFCLK
REFCLK-
GND GND GND GND GND GND GND GND 52 50 48 46 44 42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 PCIe spec
+3.3Vaux GND
+1.5V LED_WPA N#
LED_WLAN LED_WWA
N#
GND USB_D+
USB_D-
GND SMB_DATA SMB_CLK
+1.5V GND
+3.3Vaux PERST#
W_DISABL E#
GND UIM_VPP UIM_RESE T UIM_CLK UIM_DATA HTM1000 data card
+3.3Vaux GND LED_WWAN
GND USB_D+
USB_D-
GND GND
+3.3Vaux W_DISABLE
GND SIM_RESET SIM_CLK SIM_DATA Motorola Confidential Proprietary Disclosed Under NDA Page 11 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide CLKREQ
COEX2 COEX1 WAKE#
COEX2 COEX1 7 5 3 1 8 6 4 2 UIM_PWR SIM_PWR 1.5V GND GND 3.3Vaux
+3.3Vaux Table 1 HTM1000 52-pin PCI Express connector pinout 6.1.2 SIM Interface A standard ISO7816 SIM interface has been used on the card. SIM card is connected to the SIM controller on ARM9. SIM card slot must be provided by PC manufacturer. SIM signals are routed through PCIe interface. SIM signals are shown in the previous section. 6.1.3 Audio Interface Audio is not supported in P2A hardware revision. Audio support will be available starting in P2B hardware revision. Following table shows routing of PCM signals to PCIe connector:
Number Specification Pin 51 49 47 45 PCIe Reserved Reserved Reserved Reserved HTM1000 Data card PCM_SYNC PCM_IN ( WAN_HOST_WAKE) PCM_OUT PCM_CLK 7. AT commands Data Card supports AT commands interface using TTY/ACM. There will be two TTY ports supported for AT commands, and both allow all the AT commands, and PC Connection Manager client shall be using only one instance for PPP at any time. Since the PC Connection Manager Client cannot execute AT commends when data is active using PPP, a second TTY Port instance of AT parser was added to execute non-data commands like SMS or SIM. PC Connection Manager client shall use all the relevant dependent AT commands on one instance of AT parser only. E.g. For CGACT to work CGDCONT and any other dependent commands need to be issued on the same TTY port. Data Card supports only one PDP context/PPP and the Context ID 1 shall be used. AT parser shall allow only one PDP activation using AT+CGACT or Motorola Confidential Proprietary Disclosed Under NDA Page 12 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide ATD*99#, so any time one PDP is active AT Parser shall return an ERROR for the next PDP activation request. Data Card shall support only USIM based Phonebook and SMS. Data Card shall support 27.007 Rel5 Spec defined options and parameters and there are some deviations from the specifications. Please refer to Data Card AT commands ICD document for more details. Data Card AT parser shall check the existence and validity of mandatory fields. If any mandatory field is absent or validity check fails then Data Card AT parser shall return ERROR. Data card shall not support CS Calling, and incoming calls shall be rejected with appropriate status code. Any AT command functionality related to CS and supplementary services shall not be supported. Data Card AT parser shall support extended error reporting. The PC Connection manager client shall use ATD*99# to trigger the PPP and Data call activation. The values stored using any of the AT commands like CGDCONT are not persistent across power cycle. 7.1.1 Network Connection Management Data Card Allows AT commands for Network Connection Management like APN management: Set, Read, and Reset. Activate and Deactivate network connection. GPRS Attach and Detach to the network. QOS Profile Management: Set QOS, Modify QOS, Minimum QOS. Get the PDP Context IP address. 7.1.2 Registration or Mobility Management Network Registration Event Notifications. PLMN selection: Manual, Automatic. Preferred PLMN list: Adding, deleting, updating. Also for reading used entries from the USIM list of preferred PLMNs. Preferred PLMN list type: Selecting, Reading. Reading all the operator names. Reading the current activity status. Airplane mode and turning ON and OFF the RF. Motorola Confidential Proprietary Disclosed Under NDA Page 13 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Enabling and Disabling the signal strength change event notification and also to get current signal quality. Indications like Signal Strength, Service availability, Roam and SMS full status. GPRS mobile class: Setting, Reading GPRS registration change notification: Enabling, Disabling. Selection of network connection types, for example: GSM only Automatic, WCDMA only Automatic, GSM and WCDMA Automatic. Service Supported in Current Cell and Packet Data activity indications. 7.1.3 SMS Supports SMS using PDU mode only. Messages are stored in the SIM/USIM. Writing, Sending and Receiving SMS messages. New SMS message indications. List SMS messages. Send SMS messages from Storage. Delete SMS message. Write message to memory. 7.1.4 USIM and Phonebook Query IMEI, IMSI, MSISDNs of Data card. Query FLEX version, CARRIER name and Country code of the Data Card subscriber unit. specified range. Read a specific record from the phonebook entries (of USIM) or records of Write the phonebook record into the storage entry specified i.e. only USIM is supported. Capacity: It depends on the SIM/USIM card capacity. PIN management: activate/deactivate PIN, PIN lock, changing PIN, unblocking by using the PUK. Subsidy Lock support. SIM file access: read, write facility. 8. NVM/FLASH The data card uses Single Level Cell (SLC) Large Page (LP) NAND flash to store all data. Flash block sizes is 128K, divided each in 64 pages of 2K each.. Default flash size if fixed to 64 Mbytes. NAND flash is shared for AP and BP needs, but can only be physically accessed by the AP side. Motorola Confidential Proprietary Disclosed Under NDA Page 14 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 9. RF Calibration/Phasing All boards are calibrated and tested in order to meet 3GPP specifications with margins. In 2G, output powers are calibrated for each PCL and with compensation over frequency. 2G Calibration points are then validated by testing output power levels in GMSK and 8PSK. Critical parameters such as modulation and switching spectrum are also tested. RSSI levels are also calibrated across the range with frequency compensation. BLER and BER level are measured to validate sensitivity meets expectations. In 3G, output power is calibrated through the whole range (from below -55dBm up to the maximum output power level for each band). The receive chain is calibrated for input power levels. There are some compensation over frequency both in uplink and downlink. 3G calibration points are also validated by checking output power together with ACLR and EVM. BLER is measured is WCDMA for different transfer rates in order to validate the downlink path. 10. Hardware Installation 10.1 HTM1000 Data Card Installation This chapter describes physical installation of data card and configuration of HTM1000 3G data card. An extender board is used to convert half mini 3G data card to a full mini card. The extender board is attached to 3G data card as shown in the picture below. Motorola Confidential Proprietary Disclosed Under NDA Page 15 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Top View Bottom View Locate an available Mini PCIE V2 card slot in computer. Mini-PCIe Card Slot Motorola Confidential Proprietary Disclosed Under NDA Page 16 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide To ensure proper installation, insert the card into the slot at a 45o angle as shown in the picture below. The HTM1000 must be pushed down and securely fastened in the MINI-PCIe V2 slot by the means provided by the laptop vendor (screw or clip) Vendor Screw Fastener for Full Mini-PCIe slot. Connect the provided laptop antennas to the UFL connectors on the HTM1000 card. The UFL connectors will snap down when properly connected to the HTM1000. If the Main and Aux antennas are specified by the computer manufacturer then the antennas must be connected accordingly. Motorola Confidential Proprietary Disclosed Under NDA Page 17 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Aux Antenna Lead Main Antenna Lead 11. Motorola Data Card Driver Installation Motorola driver package for data card is included in deliverables. The driver package is available for Windows XP and Windows 7 operating systems. The driver package is an msi (Microsoft Installer) package. Double click on Motorola 3G Data card drvers.msi to start installation. Installation window opens, and click Next on the window. Motorola Confidential Proprietary Disclosed Under NDA Page 18 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Agree to license terms, click on Next. Installation complete message comes up. Motorola Confidential Proprietary Disclosed Under NDA Page 19 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide After successful installation of 3G data card drivers, the data card appears in device manager as shown in the picture below. Motorola Confidential Proprietary Disclosed Under NDA Page 20 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide 12. Live Network Connection 12.1 Setting up Dial Up Networking (DUN) Connection using Data Card as a Modem This section describes how one can setup dial up networking connection using data card as a modem. Open device manager, right click on Motorola 3G Data card Modem under modems and choose properties. Click on Advanced tab and enter the initialization command:
AT+CGDCONT = 1,IP,APN. Where APN is the access point name. APN information must be obtained from the carrier that is supplying SIM card. Then click on OK on the window to save settings. Motorola Confidential Proprietary Disclosed Under NDA Page 21 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide From StartSettingsnetwork Connections open New Network Connection wizard and setup a new dial up network connection. To continue click Next Motorola Confidential Proprietary Disclosed Under NDA Page 22 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Choose connect to the Internet and click on Next Choose to Set up the connection manually and click on Next Choose Connect using a dial-up modem and click on Next Motorola Confidential Proprietary Disclosed Under NDA Page 23 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Choose Motorola 3G Data card Modem and click Next Enter a name for ISP and click Next Motorola Confidential Proprietary Disclosed Under NDA Page 24 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Enter phone number, for data connection dial in number is *99#. Click on Next Motorola Confidential Proprietary Disclosed Under NDA Page 25 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Motorola Confidential Proprietary Disclosed Under NDA Page 26 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Now you are ready to connect to live network. Double click on 3G Data Card icon on the desktop. 3G Data Card appears in a window as shown below. Motorola Confidential Proprietary Disclosed Under NDA Page 27 of 28 MOTOROLA 3G PCIe Half Mini Card User Guide Click on properties and ensure that 3G data card modem is chosen for connection. Click on OK on Properties window and then Click on Dial on 3G Data card window. The following window appears which shows dial up connection. 12.2 Trouble Shooting Live Network Connection 13. Known Issues 13.1 P2B HW revision None Motorola Confidential Proprietary Disclosed Under NDA Page 28 of 28 Antenna Installation The "main" antenna installation must provide a minimum separation distance of 20 cm from users and nearby persons and must not be co-located or operating in conjunction with any other antenna or transmitter. The combined cable loss and antenna gain must not exceed +4.2 dBi (800 band). The combined cable loss and antenna gain must not exceed +2.85 dBi and total system output must not exceed 2.0W EIRP in the PCS (1900) band in order to comply with the EIRP limit of 24.232 (b). OEM installers must be provided with antenna installation instruction and transmitter operating conditions for satisfying RF exposure compliance. For system integrations requiring higher antenna gain, or a "main" antenna position closer than 20cm from the body, SAR compliance testing of the completed product will be required. It is strongly recommended that the system integrator seeks the advice of a suitably accredited test laboratory to develop a test plan and carry out necessary testing. Safety & General Information This section contains important information on the safe and efficient operation of your mobile device. Read this information before using your mobile device. Exposure to Radio Frequency (RF) Energy Your mobile device contains a transmitter and receiver. When it is ON, it receives and transmits RF energy through the external antenna. When you communicate with your mobile device, the system handling your call controls the power level at which your mobile device transmits. Your Motorola mobile device is designed to comply with local regulatory requirements in your country concerning exposure of human beings to RF energy. Operational Precautions For optimal mobile device performance and to be sure that human exposure to RF energy does not exceed the guidelines set forth in the relevant standards, always follow these instructions and precautions. External Antenna Care If your mobile device has an external antenna, use only a Motorola-supplied or approved replacement antenna. Use of unauthorized antennas, modifications, or attachments could damage the mobile device and/or may result in your device not complying with local regulatory requirements in your country. DO NOT hold the external antenna when the mobile device is IN USE. Holding the external antenna affects call quality and may cause the mobile device to operate at a higher power level than needed. Do not operate your mobile telephone when a person is within a minimum of 20 cm (8 inch) of the vehicle antenna. A person or object within 20 cm (8 inch) of the antenna could impair call quality and may cause the phone to operate at a higher power level than necessary and expose that person to RF energy in excess of that established by the FCC RF Exposure Guidelines. RF Energy Interference/Compatibility Nearly every electronic device is subject to RF energy interference from external sources if inadequately shielded, designed, or otherwise configured for RF energy compatibility. In some circumstances your mobile device may cause interference with other devices. Using accessories not supplied or approved by Motorola may cause your mobile device to exceed RF energy exposure guidelines. For a list of Motorola-supplied or approved accessories, visit our web site at http://www.motorola.com.