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Sierra Wireless AirPrime SL808 Series, Product Technical Specification & Customer Design Manuallines, Page: 102 / 122

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Sierra Wireless AirPrime SL808 Series Product Technical Specification & Customer Design Manuallines Download Page 102

Product Technical Specification & Customer Design Guidelines

102

Proprietary and Confidential - Specifications subject to change

2400058

Summary of Contents for AirPrime SL808 Series

Page 1: ...Product Technical Specification Customer Design Guidelines AirPrime SL808X 2400058 Rev 1...

Page 2: ......

Page 3: ...in flight In aircraft the Sierra Wireless modem MUST BE POWERED OFF When operating the Sierra Wireless modem can transmit signals that could interfere with various onboard systems Note Some airlines...

Page 4: ...the Sierra Wireless logo are trademarks of Sierra Wireless Windows and Windows Vista are registered trademarks of Microsoft Corporation QUALCOMM is a registered trademark of QUALCOMM Incorporated Used...

Page 5: ...ve compliant 20 Disposing of the product 21 Functional Specifications 23 Functional architecture 23 Chipsets 23 Extended AT commands 23 Technical Specifications 25 Power supply 25 Burst transmission c...

Page 6: ...eneral purpose input output 40 Pin descriptions 41 Main serial link UART1 41 UART1 pin descriptions 42 Interface implementation 42 SIM interface 42 SIM pin descriptions 43 Application notes 43 USB 2 0...

Page 7: ...M waveforms 63 JTAG interface 64 Signals and Indicators 65 Overview 65 Power on off signal POWER_ON_N 66 Pin descriptions 66 Electrical characteristics 66 Application notes 66 Reset Signal SYSTEM_RESE...

Page 8: ...ption 77 Power states 79 Power state transitions 80 Network technology specifications 83 UMTS WCDMA FDD specifications 83 Supported specifications 85 UMTS WCDMA GSM specifications 91 Design Guidelines...

Page 9: ...4 RF output accessibility 105 Certification Compliance and Recommended Standards 107 UMTS compliance acceptance and certification 107 Certification compliance 107 Applicable standards listing 108 Impo...

Page 10: ...devices 114 Vehicle electronic equipment 114 Medical electronic equipment 114 Aircraft 115 Children 115 Blasting areas 115 Potentially explosive atmospheres 115 Connector and Peripheral Device Refere...

Page 11: ...filter TBD 55 Example MIC single ended connection with LC filter TBD 56 Example MIC single ended connection without an LC filter TBD 56 SPK equivalent circuit 58 Example SPK differential connection 5...

Page 12: ...Product Technical Specification Customer Design Guidelines 12 Proprietary and Confidential Specifications subject to change 2400058...

Page 13: ...4 USB interface pins 45 USB interface electrical characteristics 45 USB interface features 47 RF interface pins 48 Band support Conducted Tx Power and Conducted Rx Sensitivity 49 Main antenna ANT_PRI...

Page 14: ...gnal electrical characteristics 73 VREF_1V8 pin descriptions 74 1 8 V connector pins 74 VREF_1V8 signal electrical characteristics 75 Averaged standby DC power consumption 77 Averaged call mode data D...

Page 15: ...80 SL8081 SL8082 SL8083 SL8084 SL8085 Table 1 1 Supported bands connectivity SL8080 SL8081 SL8082 SL8083 SL8084 SL8085 GSM850 EGSM900 DCS1800 PCS1900 Band 1 UMTS2100 Band 2 UMTS1900 Band 5 UMTS850 Ban...

Page 16: ...n multiplexed USB channel support Dial up networking USB selective suspend to maximize power savings AT command interface non voice 27 007 standard plus proprietary extended AT commands CnS Sierra Wir...

Page 17: ...Streaming Release 97 Precedence Class Reliability Class Delay Class Peak Throughput Mean Throughput Static and Dynamic IP address The network may assign a fixed IP address or dynamically assign one us...

Page 18: ...t message to redirect from a 3G system to a 2G system according to 25 331 R5 June 2004 A CPHS Customer Service Profile like feature PLMN Mode bit on a USIM SIM that hides network selection related men...

Page 19: ...less and authorized third parties Sierra Wireless Watcher connection manager available for Windows and Mac operating systems CDMA Air Interface Tool CAIT from Qualcomm QXDM from Qualcomm Interfaces 1...

Page 20: ...page 40 for details AirPrime SL Development Kit Hardware development platform that integrates with the socket up board The development kit provides access to all of the interfaces supported by the SL...

Page 21: ...electronic product is subject to the EU Directive 2002 96 EC for Waste Electrical and Electronic Equipment WEEE As such this product must not be disposed off at a municipal waste collection point Plea...

Page 22: ...Product Technical Specification Customer Design Guidelines 22 Proprietary and Confidential Specifications subject to change 2400058...

Page 23: ...and processor RF transceiver and power management IC Voice modems SL8080 82 84 QSC6270 Data modems SL8081 83 85 MDM6270 2 2 Extended AT commands Several proprietary AT commands are available for AirPr...

Page 24: ...tary and Confidential Specifications subject to change 2400058 of all available commands and descriptions of their functionality refer to 3 AirPrime MC8xxx Embedded Modules Extended AT Command Referen...

Page 25: ...8 10 V Maximum supply current 1 mA 1 62 1 80 1 98 V GND 19 20 21 23 28 39 35 37 38 39 52 V 0 V a Host provided input voltage should provide 3 A instantaneous lasting 5 ms and 1 5 A continuous current...

Page 26: ...lation spectrum EMC performance spurious emission frequency error etc Provide reference voltage VREF_1V8 through several internal regulators for the baseband signals The host should draw less than 1 m...

Page 27: ...ded Module has embedded decoupling capacitors on the VCC_3V6 lines additional decoupling may be required EMI RFI issues Parallel 33 pF capacitors close to the embedded module TDMA noise 217 Hz Low fre...

Page 28: ...ification Customer Design Guidelines 28 Proprietary and Confidential Specifications subject to change 2400058 3 4 1 Mechanical illustrations Figure 3 1 Exploded view Figure 3 2 Dimensioned view 2 4 no...

Page 29: ...uirements 3 6 Embedded SIM eSIM The AirPrime SL808X Embedded Module is available with an embedded SIM solution that eliminates design issues related to working with a consumer style SIM card including...

Page 30: ...t of data transferred etc You can enhance heat dissipation by Maximizing airflow over around the module Locating the module away from other hot components You can use PCTEMP or GSTATUS to return the m...

Page 31: ...ce areas the host I O perimeter I O ports pins and the RF ports Figure 4 1 portrays the AirPrime SL808X Embedded Module s system block with these interface areas identified Table 4 1 Available interfa...

Page 32: ...a Switch U850 G850 U1900 G1900 U850 U1900 U1900 BPF POWER DET Tx Lo Quad U Converter Quad U Converter Rx Lo Quad D Converter Quad D Converter GSM LB GSM HB GSM LB GSM HB U2100 U2100 Transceiver Base b...

Page 33: ...IM_CLK NC SPI_CS_N SPI_CLK SPI_DATA_MOSI SPI_DATA_MISO NC NC NC NC GND GND POWER_ON_N VCC_3V6 SPK_P Voice RESERVED DNC Data SPK_N Voice RESERVED DNC Data NC MIC1_N Voice RESERVED DNC Data MIC1_P Voice...

Page 34: ...1 GPIO_3 General purpose I O High Low Input High 1 17 2 1 Digital Input Low 0 3 0 63 Output High 1 35 1 8 Output Low 0 0 45 2 GPIO_2 General purpose I O High Low Input High 1 17 2 1 Digital Input Low...

Page 35: ...t Low 3 0V 0 00 0 60 10 VREF_1V8 1 8 V LDO High when module is on Output 1 62 1 8 1 98 Power 11 SPI_CS_N SPI chip select Low Output High 1 35 1 8 Digital Output Low 0 0 45 12 SPI_CLK SPI clock Output...

Page 36: ...No connect 35 GND Ground GND GND 36 ANT_GPS GPS antenna Input Refer to RF specifications RF 37 GND Ground GND GND 38 GND Ground GND GND 39 GND Ground GND GND 40 NC No connect 41 RESERVED DNC No connec...

Page 37: ...High 2 00 3 30 3 60 Differential Input Low 0 00 0 80 Output High 2 80 3 30 3 60 Output Low 0 30 USB data negative High speed Input High 0 30 0 44 Input Low 0 00 0 01 Output High 0 36 0 38 0 44 Output...

Page 38: ...al Output Low 0 0 45 62 W_DISABLE_N Wireless disable High Low Input High 1 17 2 1 Digital Input Low 0 3 0 63 63 SYSTEM_RESET_N Reset High Low Input High 1 17 2 1 Digital Input Low 0 3 0 63 64 PCM_SYNC...

Page 39: ...t Low 0 3 0 63 73 TDO Test Data Output High Low Output High 1 35 1 8 Digital Output Low 0 0 45 74 RTCK Return TCK High Low Output High 1 35 1 8 Digital Output Low 0 0 45 a During the powered off state...

Page 40: ...PIO pins Table 4 5 describes the purpose and features of this interface Table 4 4 Reset state definition Parameter Definition 0 Set to GND 1 Set to supply 1V8 Pull down Internal pull down with 60 k re...

Page 41: ...peripheral devices Contact Sierra Wireless for further information Table 4 6 GPIO pin descriptions Pin Signal I O type Reset statea a See Table 4 4 on page 40 for state definitions Description 1 GPIO...

Page 42: ...port UART1 interface Pin Signal I O type Reset statea Description Direction wrt host Notes 45 UART1_RXD 1V8 High speed UART Transmit data Input Digital pin input internal Pull Down UART1 serial data...

Page 43: ...pin description Table 4 11 describes the required SIM socket pins Table 4 10 USIM interface signals Pin Name I O Type Reset statea Description Notes 6 EXT_VREG_USIM USIM power supply 1 8 V 3G or 3 V...

Page 44: ...urpose Host module communication via AT commands CnS objects etc Standard USB 2 0 compliant CDC 1 1 ACM compliant Data rates supported Optimized for high speed 480 Mbps Full speed 12 Mbps Throughput p...

Page 45: ...etailed USB driver specifications for Sierra Wireless AirPrime modules are included in the AirCard AirPrime USB Driver Developer s Guide available from your Sierra Wireless account representative Tabl...

Page 46: ...e requirements Must act as a USB host device to interface with the module Must support remote wakeup resume and suspend operations as described in Universal Serial Bus Specification Rev 2 0 and USB Su...

Page 47: ...be isolated from other high voltage and noisy signals to ensure a good Rx sensitivity level RF traces on the host PCB could be lossy so should be kept as short as possible For more information see Fig...

Page 48: ...uirements of 3GPP Release 5 Table 4 17 on page 49 describes supported GSM WCDMA and GPS bands conducted Tx power and conducted Rx sensitivity Table 4 16 RF interface pins Pin Signal I O type Reset sta...

Page 49: ...K connectorized Class 4 27 3 8PSK connectorized Class E2 DCS 1800 Tx 1710 1785 Rx 1805 1880 30 2 GMSK connectorized Class 1 26 3 8PSK connectorized Class E2 PCS 1900 Tx 1850 1910 Rx 1930 1990 30 2 GMS...

Page 50: ...al recommendation all components or chips operated at high frequencies microprocessors memories DC DC converter or other active RF parts should not be placed too close to the AirPrime SL808X Embedded...

Page 51: ...igns with up to 2 3 1 VSWR or worse the radiated emissions could exceed limits These emissions must be tested with the final antenna to ensure they pass Examples of these limits would be FCC Part 22 a...

Page 52: ...to differential mode Table 4 19 Audio interface features Feature Details Implementation Supports analog audio processing Does not provide on board filtering except for 0 1 Fblocking capacitors on mic...

Page 53: ...mum Unit Parameters MIC1_P 2 2 1 2 2 V Internal biasing Output current 0 5 1 5 mA DC characteristics R2 1650 1900 2150 AC characteristics 200 Hz F 4 kHz Z2 MIC1_P MIC1_N Open 1 1 1 3 1 6 k Z2 MIC1_N M...

Page 54: ...dio quality may be good enough without it depending on the design Filter may be used to reduce TDMA noise from EMI perturbation Table 4 22 Microphone interface parameters Parameter Description Test Mi...

Page 55: ...ded to eliminate TDMA noise and it must be connected close to the microphone Table 4 23 lists the recommended components to use in creating the LC filter AirPrime SL module Audio ADC MIC C1 S3 S4 MIC1...

Page 56: ...omes 1150 due to the connection of MIC1_N to the ground LC filter L1 and C2 is recommended but not mandatory to eliminate TDMA noise If the filter is not to be used the capacitor C2 must be removed an...

Page 57: ...capacitors are not needed for this interface Table 4 25 lists the typical values of both speaker outputs 4 10 3 1 Speakers output power Because SPK can provide more power it can be connected in diffe...

Page 58: ...um Unit Biasing voltage SPK_P and SPK_N 1 30 V Output swing voltage RL 8 AT VGR 1000a single ended 2 Vpp RL 8 AT VGR 1000a differential 4 Vpp RL 32 AT VGR 1000a single ended 2 5 Vpp RL 32 AT VGR 1000a...

Page 59: ...in differential mode 4 10 3 4 Single ended connection example Figure 4 10 Example SPK single ended connection Take note of the following when connecting the speaker in single ended mode 6 8 F C1 47 F...

Page 60: ...tails its support for supplementary services Table 4 28 Supported voice features Item Comments USSD Unstructured Supplementary Services Data This is a GSM specific capability that supports transmittin...

Page 61: ...ll Forwarding Unconditional Yes Yes Yes on Mobile Subscriber Busy Yes Yes Yes on No Reply Yes Yes Yes on Mobile Subscriber Not Reachable Yes Yes Yes Call Barring All outgoing calls Yes Yes Yes Outgoin...

Page 62: ...cannot differ from this specifi cation Table 4 31 PCM audio interface features Feature Details Implementation Primary PCM supported to interface with external codec Power 1 8 V use VREF_1V8 as logic r...

Page 63: ...me waveform Figure 4 12 PCM sampling waveform Table 4 33 describes the AC characteristics of the digital audio interface a See Table 4 4 on page 40 for state definitions Table 4 33 Digital audio inter...

Page 64: ...ow Sierra Wireless to use the interface for debugging testing See JTAG connector on page 117 for recommended suppliers If platform issues arise contact Sierra Wireless for assistance TSYNC_CLK PCM_SYN...

Page 65: ...the host Table 5 1 and describes how the system implements Smart Error Detection using those signals Table 5 1 Available signals Name Driven by AT commands Power on off signal POWER_ON_N on page 66 Re...

Page 66: ...ny damage when starting and to allow the embedded module to start and stop correctly Refer to Table 4 2 on page 34 for basic characteristics type voltage 5 2 3 Application notes Caution This section i...

Page 67: ...on the module 3 Release the POWER_ON_N signal module has internal pull up to 2 6 V Module is now in the on normal power state To power off the modem the host must 1 Drive the signal low for at least...

Page 68: ...cal characteristics Table 5 6 describes the reset signal s electrical characteristics Refer to Table 4 2 on page 34 for basic characteristics type voltage Table 5 4 Reset signal features Feature Detai...

Page 69: ...asserting a logic low An open collector or open drain transistor can be used If an open collector is chosen T1 can be a ROHM DTC144EE SYSTEM_RESET_N time Rt c at power up only 20 40 100 ms Cancellatio...

Page 70: ...for 1V8 voltage characteristics and reset state definitions 5 4 2 Electrical characteristics Refer to Table 4 2 on page 34 for basic characteristics type voltage Table 5 8 Wake signal features Feature...

Page 71: ...ics type voltage 5 5 3 Application notes Caution This section is under review and subject to change 5 5 3 1 Procedure Disable enable radio To disable the RF connection 1 Host asserts W_DISABLE_N To en...

Page 72: ...able signal pin See Digital I O electrical information on page 39 for 1V8 voltage characteristics and reset state definitions 5 6 2 Electrical characteristics Refer to Table 4 2 on page 34 for basic c...

Page 73: ...for basic characteristics type voltage Table 5 14 LED signal features Feature Details Purpose Flash LED output Used by host to control LED status by controlling LED diode bias Implementation Digital o...

Page 74: ...nal I O I O type Description 10 VREF_1V8 O Supply 1 8 V digital supply Table 5 18 1 8 V connector pins Pin Signal name Description 1 GPIO_3 General Purpose I O 2 GPIO_2 General Purpose I O 3 GPIO_1 Ge...

Page 75: ...in series Depending on the host PCB trace length for this signal PCB provision for decoupling capacitors may be required 5 9 Reserved The AirPrime SL808X Embedded Module includes pins that may not be...

Page 76: ...Product Technical Specification Customer Design Guidelines 76 Proprietary and Confidential Specifications subject to change 2400058...

Page 77: ...tivated assumes USB bus is fully suspended during measurements HSDPA WCDMA UMTS bands 2 TBD mA DRX cycle 8 2 56 s GSM GPRS EDGE GSM bands 2 7 TBD mA MFRM 5 1 175 s Standby current consumption with Sle...

Page 78: ...A 3 slots 200 mA 4 slots 10 dBm 50 Peak 330 mA Averaged over 100 s Worst case on 850 900 band Average 175 mA 1 slots 210 mA 2 slots 245 mA 3 slots 275 mA 4 slots 2 3 1 VSWR Peak 450 mA Averaged over 1...

Page 79: ...1900 MHz Class E2a 26 dBm 0 4 W a E2 power class applies to 8PSK modulation Table 6 5 Supported SL808X power states State Description Host powered Modem powered USB interface active RF enabled Normal...

Page 80: ...module All module related voltages are at 0 V Table 6 5 Supported SL808X power states Continued State Description Host powered Modem powered USB interface active RF enabled Table 6 6 Power state tran...

Page 81: ...state machine current_vcc VOLT_LO_NORM current_temp TEMP_HI_NORM current_vcc VOLT_LO_CRIT current_temp TEMP_HI_CRIT current_vcc VOLT_LO_NORM current_temp TEMP_HI_NORM current_vcc VOLT_LO_WARN current...

Page 82: ...Product Technical Specification Customer Design Guidelines 82 Proprietary and Confidential Specifications subject to change 2400058...

Page 83: ...ayer specifications DL Channels BCH PCH FACH DCH AICH CPICH UL Channels RACH DCH Measurement for PCCPCH RSCP RSCP SIR BTFD CCTrCH As defined by examples in 25 944 Multifinger support Cell reselection...

Page 84: ...AP and RLIST Start stop for all three modes RRC Specifications Cell selection RRC connection establishment RRC connection release System information processing Idle mode paging Dedicated mode paging I...

Page 85: ...network String from internal lookup table in UE Radio bearer reconfiguration Transport channel reconfiguration Physical channel reconfiguration UTRAN mobility information Integrity protection Security...

Page 86: ...TBF Temporary Block Flow connection the MS Mobile Station requests either one phase or two phase packet access In one phase access the network responds to a packet channel request by sending a packet...

Page 87: ...o the mobile while in a packet data session which decreases the experienced service delays caused by cell re selection MAIO Mobile Allocation Index Offset MAIO and Hopping Sequence Number HSN are used...

Page 88: ...values match the authentication is acknowledged otherwise the connection is terminated Support for encryption algorithm UEA1 Kasumi UEA1 UMTS Encryption Algorithm generates the keystream as a functio...

Page 89: ...400 bps Asynchronous V120 14400 bps Asynchronous V120 28800 bps Asynchronous V120 56000 bps HSDPA Data rates The following data rates are supported Category 12 1 8 Mbps Category 5 6 3 6 Mbps HSDPA log...

Page 90: ...processing support Cell change These cell change methods are supported Synchronous and non synchronous Intra Node B softer repointing Inter Node B soft repointing Up switching and down switching of P...

Page 91: ...ixed Number Dialing Service Dialing Numbers etc Cell reselection handover Supports InterRat and InterFrequency cell reselection and handover between supported frequency bands Security IMEI Security SI...

Page 92: ...e of operation I II GPRS mobility management GPRS attach GPRS detach Routing area update GPRS authentication GPRS identification GMM status Periodic routing area update Ciphering Access class barring...

Page 93: ...s V 80 N A V 42bis N A Multiple PDP context profiles up to 16 SMS specifications CS domain MT SMS point to point CS domain MO SMS point to point SMMA Dedicated mode Message classes 0 1 2 3 none SMS SM...

Page 94: ...Product Technical Specification Customer Design Guidelines 94 Proprietary and Confidential Specifications subject to change 2400058...

Page 95: ...e application design makes it possible all analog signals should be separated from digital signals by a ground line on the PCB Tip It is recommended to avoid routing any signals under the AirPrime SL8...

Page 96: ...apt an existing solution to the application For more information on routing constraints for the RF circuit see RF circuit on page 98 8 5 PCB specifications for the application board In order to save c...

Page 97: ...track or the ground plane on the application board for the power supply which supplies the AirPrime SL808X Embedded Module The ground track or the ground plane on the application board must support c...

Page 98: ...SL808X Embedded Module and the SIM socket should be as short as possible Maximum recommended length is 10cm ESD protection is mandatory on the SIM lines if access from outside of the SIM socket is pos...

Page 99: ...gure below Figure 8 4 Routing examples Stripline and Coplanar design requires having a correct ground plane at both sides Consequently it is necessary to add some vias along the RF path It is recommen...

Page 100: ...emissions Biasing of the microphone inputs Ground plane Sierra Wireless recommends a common ground plane for analog digital RF grounds A metallic case or plastic casing with conductive paint are recom...

Page 101: ...rtant In order to follow regular changes in the GPRS standard and to offer a state of the art operating system Sierra Wireless recommends that the application designed around an embedded module or emb...

Page 102: ...Product Technical Specification Customer Design Guidelines 102 Proprietary and Confidential Specifications subject to change 2400058...

Page 103: ...essed Mounting Effect on temperature shock and vibration perfor mance Power supply Impact on battery drain and possible RF inter ference Antenna location and type Impact on RF performance Regulatory a...

Page 104: ...e location shown below this should be the hottest spot on the device the WCDMA PA Figure 9 1 Recommended thermocouple location Note Make sure that your system design provides sufficient cooling for th...

Page 105: ...me SL808X Embedded Module it can be helpful to connect the AirPrime SL808X Embedded Module to a GSM GPRS simulator in order to check critical RF TX parameters and power behavior Although the AirPrime...

Page 106: ...pecifications subject to change 2400058 Because of the high prices associated with GSM GPRS simulators and the necessary GSM know how to perform simulations customers can check their applications in t...

Page 107: ...n will affect the final product functionality RF performance and certification test results Note Tests that require features not supported by the SL808X as defined by this document are not supported 1...

Page 108: ...g from delays or errors in data transmitted or received using the Sierra Wireless modem or for failure of the Sierra Wireless modem to transmit or receive such data 10 3 2 Safety and hazards Do not op...

Page 109: ...n the maximum antenna gain including cable loss in a mobile only exposure condition must not exceed 5 dBi in the cellular band and 3 dBi in the PCS band 3 The AirPrime SL808X Embedded Module and its a...

Page 110: ...ess hereby declares that the SL8082 and SL8083 modems conform with all essential requirements of Directive 1999 5 EC SL8082 SL8083 The Declaration of Conformity made under Directive 1999 5 EC is avail...

Page 111: ...tor Indicator enabled Service indicator disablea Watcher never shows the onscreen indicator For example HSDPA GPRS 3G Indicator enabled Data counter disablea Watcher never shows Rx and Tx data counter...

Page 112: ...Product Technical Specification Customer Design Guidelines 112 Proprietary and Confidential Specifications subject to change 2400058...

Page 113: ...concern about possible health effects of using GSM terminals Although research on health effects from RF energy has focused on the current RF technology for many years scientists have begun research...

Page 114: ...12 2 General safety 12 2 1 Driving Check the laws and the regulations regarding the use of cellular devices in the area where you have to drive as you always have to comply with them When using your...

Page 115: ...when you are in a blasting area or in areas posted turn off two way radio Construction crew often uses remote control RF devices to set off explosives 12 2 8 Potentially explosive atmospheres Turn yo...

Page 116: ...Product Technical Specification Customer Design Guidelines 116 Proprietary and Confidential Specifications subject to change 2400058...

Page 117: ...hange 117 13 13 Connector and Peripheral Device References 13 1 JTAG connector Sierra Wireless suggests that a MOLEX ZIF connector be applied to your design to enable debugging testing of devices by S...

Page 118: ...Product Technical Specification Customer Design Guidelines 118 Proprietary and Confidential Specifications subject to change 2400058...

Page 119: ...it Quick Start Guide TBD 2 AirCard AirPrime UMTS Devices Supported AT Command Reference Document 2130617 3 AirPrime MC8xxx Embedded Modules Extended AT Command Reference Document 2130616 4 AirPrime UM...

Page 120: ...CN Handset Specification CS Circuit switched CSD Circuit switched Data DHCP Dynamic Host Configuration Protocol DUN Dial Up Networking EAP SIM Extensible Authentication Protocol Method for GSM Subscri...

Page 121: ...RTC Real Time Clock Rx Receive SDK Software Development Kit SIM Subscriber Identity Module SMS Short Message Service TDD Telecommunications Device for the Deaf TTY Teletypewriter Tx Transmit UMTS Uni...

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