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GSM Modem Integration Guide  
Revision Draft 

GSM0128IG001 

iii 

Version Draft – 9/22/08 

6.7.2

 

RF Connector .......................................................................................................................................... 28

 

6.8

 

C

ONTROL 

C

ONNECTOR 

S

IGNAL 

D

ESCRIPTIONS AND 

F

UNCTIONS

 ........................................................................  28

 

6.8.1

 

Input Power ............................................................................................................................................. 28

 

6.8.2

 

Ring Indicate (Pin 49) ............................................................................................................................. 29

 

6.8.3

 

Radio Power/Reset (Pin 22) .................................................................................................................... 30

 

6.8.4

 

Using the Power Control Signal (Pin 24) ............................................................................................... 30

 

6.8.4.1

 

Turning ON the Enabler IIG ................................................................................................................... 31

 

6.8.4.2

 

Turning OFF the Enabler IIG ................................................................................................................. 31

 

6.8.4.3

 

Using the Power Control Signal ............................................................................................................. 31

 

6.8.5

 

Using VBAK (pin 36) .............................................................................................................................. 34

 

6.8.6

 

System Shutdown Methods ...................................................................................................................... 35

 

6.8.7

 

Serial Interface (9 Pin I/F) (Pins 41, 43, 45, 47, 49, 51, 53, 55, 57) ....................................................... 37

 

6.9

 

G

ENERAL 

P

URPOSE 

I

NPUT

/O

UTPUT 

I

NTERFACE 

(GPIO)

 

(P

INS 

14,

 

18,

 

27,

 

28,

 

30,

 

32,

 

34,

 

39) .............................  38

 

6.9.1

 

Analog-To-Digital Input (Pin  56) ........................................................................................................... 38

 

6.9.2

 

Handset Microphone Input (Pins 17, 21, 25) .......................................................................................... 38

 

6.9.3

 

Handset Speaker Output (Pins 9, 13) ...................................................................................................... 39

 

6.9.4

 

Headset Microphone Input (Pin 42) ........................................................................................................ 39

 

6.9.5

 

Headset Speaker Output (Pin38) ............................................................................................................. 40

 

6.9.6

 

Audio Design Note .................................................................................................................................. 41

 

6.10

 

S

UBSCRIBER 

I

DENTITY 

M

ODULE 

(SIM)

 

C

ARRIER 

(P

INS 

48,

 

52,

 

54,

 

55) ............................................................. 42

 

6.10.1

 

SIM Integration for the Enfora Enabler IIG Module .............................................................................. 42

 

6.10.2

 

Using a Remote SIM with the Enfora Enabler IIG Module .....................................................................  43

 

6.10.2.1

 

Remote SIM Component Information .................................................................................................. 43

 

7.0

 

MODES OF OPERATION .............................................................................................................................. 44

 

7.1

 

E

NABLING THE 

T

RANSMISSION 

M

ODES FOR THE 

GSM/GPRS

 

S

ERVICES

............................................................ 44

 

7.2

 

V

OICE 

C

OMMUNICATION

 .................................................................................................................................. 44

 

7.3

 

SMS:

 

S

HORT 

M

ESSAGE 

S

ERVICES

 .................................................................................................................... 45

 

7.4

 

SMS

 

F

EATURES 

S

UPPORTED BY THE 

E

NFORA 

E

NABLER 

IIG

 

M

ODULE

 ............................................................... 45

 

8.0

 

SIM OPERATION ............................................................................................................................................ 46

 

8.1

 

P

ROVISIONING THE 

SIM ................................................................................................................................... 46

 

8.2

 

GSM

 

S

ERVICES 

S

UPPORTED BY THE 

E

NFORA 

E

NABLER 

IIG

 

M

ODULE

 ............................................................... 46

 

8.3

 

GPRS

 

S

ERVICES 

S

UPPORTED BY THE 

E

NFORA 

E

NABLER 

IIG

 

M

ODULE

 .............................................................. 46

 

8.4

 

S

ELECTING THE 

M

ODES OF 

O

PERATION

............................................................................................................. 47

 

9.0

 

SOFTWARE INTERFACE ............................................................................................................................. 48

 

9.1

 

S

OFTWARE 

I

NTERFACE

 ..................................................................................................................................... 48

 

9.2

 

F

ORMAT FOR THE 

AT

 

C

OMMANDS

 .................................................................................................................... 48

 

9.3

 

E

NFORA 

AT

 

C

OMMAND 

S

ET

 .............................................................................................................................  49

 

9.4

 

E

NFORA 

P

ACKET 

A

PPLICATION 

P

ROGRAMMING 

I

NTERFACE

 .............................................................................. 49

 

9.4.1

 

UDP-API Architecture ............................................................................................................................ 49

 

9.5

 

E

NFORA 

M

ODEM 

C

ONTROL 

L

IBRARY 

A

RCHITECTURE

 .......................................................................................  51

 

9.5.1

 

Using Port Library .................................................................................................................................. 52

 

9.5.2

 

Using Messaging Library ........................................................................................................................ 52

 

9.5.3

 

Using Modem Library ............................................................................................................................. 53

 

10.0

 

SETUP AND INITIALIZATION .................................................................................................................... 54

 

10.1

 

G

ENERAL 

S

ETUP

 ............................................................................................................................................... 54

 

10.1.1

 

HyperTerminal Configuration for Enabler IIG ....................................................................................... 54

 

10.1.2

 

Initialization (AT Command Interface) ................................................................................................... 55

 

10.1.3

 

Initial Response to the AT Command ...................................................................................................... 56

 

10.1.4

 

Sending an Initialization String to the Enfora Enabler IIG Module ........................................................  56

 

10.1.5

 

Setting Up the Communication Mode for the Enfora Enabler IIG Module ............................................. 56

 

11.0

 

INTEGRATION AND TESTING .................................................................................................................... 57

 

I

NTEGRATING THE 

E

NFORA 

E

NABLER 

IIG

 

M

ODULE

 ...................................................................................................... 57

 

APPENDIX A - LIMITED WARRANTY .................................................................................................................. 59

 

S

COPE

 .......................................................................................................................................................................... 59

 

H

ARDWARE

 .................................................................................................................................................................. 59

 

Содержание Enabler IIG

Страница 1: ...Enfora Enabler IIG Quad Band GSM GPRS Radio Modem Integration Guide Version Draft Integration Guide GSM0128IG001 ...

Страница 2: ...ers using integrating and or selling this product for use in such applications do so at their own risk and agree to fully indemnify Enfora Inc for any damages resulting from illegal use or resale Copyright Complying with all applicable copyright laws is the responsibility of the user Without limiting the rights under copyright no part of this document may be reproduced stored in or introduced into...

Страница 3: ...RA ENABLER IIG RADIO MODULE 15 4 7 GENERAL LAYOUT GUIDELINES FOR ENFORA GSM MODULES 17 5 0 TECHNICAL SPECIFICATIONS 18 5 1 ENABLER IIG MODULE BLOCK DIAGRAM 18 5 2 DETAILED PRODUCT SPECIFICATIONS 19 Physical Dimensions and Weight 19 Climatic Operational 19 Climatic Storage and Transportation 19 Mechanical Operational 19 Mechanical Storage and Transportation 19 Mechanical Proposed Standards 19 Elect...

Страница 4: ...nent Information 43 7 0 MODES OF OPERATION 44 7 1 ENABLING THE TRANSMISSION MODES FOR THE GSM GPRS SERVICES 44 7 2 VOICE COMMUNICATION 44 7 3 SMS SHORT MESSAGE SERVICES 45 7 4 SMS FEATURES SUPPORTED BY THE ENFORA ENABLER IIG MODULE 45 8 0 SIM OPERATION 46 8 1 PROVISIONING THE SIM 46 8 2 GSM SERVICES SUPPORTED BY THE ENFORA ENABLER IIG MODULE 46 8 3 GPRS SERVICES SUPPORTED BY THE ENFORA ENABLER IIG...

Страница 5: ...3 INTENTIONAL RADIATORS PART 22 24 63 INSTRUCTIONS TO THE ORIGINAL EQUIPMENT MANUFACTURER OEM 64 OEM Responsibilities for All Products Containing the Enabler IIIG module 66 Specific OEM Responsibilities for Portable Products and Applications 67 Specific OEM Responsibilities for Mobile Products and Applications 67 Specific OEM Responsibilities for Fixed Products and Applications 67 EMC SAFETY REQUI...

Страница 6: ...certification approvals the installation must meet the following conditions Maximum RF output power and antenna gain to meet Maximum Permissible Exposure Requirements GSM850 mode Power at antenna port is 33 dBm The maximum gain is 1 4 dBi GSM1900 mode Power at antenna port is 30 dBm The maximum gain is 7 dBi in order to meet the requirements of maximum 2 watts EIRP for mobile transmitters If RF po...

Страница 7: ...This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation or Contains FCC ID MIVGSM0128 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 ...

Страница 8: ...the guidelines contained herein Said variables must be taken into consideration when installing or using the product and Enfora shall not be responsible for installations or transmissions that fall outside of the parameters set forth in this publication Enfora shall not be liable for consequential or incidental damages injury to any person or property anticipated or lost profits loss of time or ot...

Страница 9: ... GSM GPRS OEM modem The purpose of this document is to define the electrical mechanical and software interfaces while providing detailed technical information in order to streamline the process of hardware and system integration 3 1 Revision History Date Rev Author Description 08 29 08 1 00 Armando De Jesus Initial Release ...

Страница 10: ...C Rules Part 22 for GSM 850 FCC Rules Part 15 FCC Rules Part 2 Subpart J Equipment Authorization Procedures Section 2 925 FCC Office of Engineering and Technology OET Internet http www fcc gov oet Bulletin Number 65 Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields Supplement C Additional Information for Evaluating Compliance of Mobile and Porta...

Страница 11: ...GSM0128IG001 10 Revision Draft 9 22 08 RF and EMI Specifications ETSI Standards EN 61000 4 6 EN 61000 4 3 GSM 11 10 Section 12 2 EN 55022 Class B ...

Страница 12: ...fication Module SIM Optional 1 8 3 V mini SIM carrier and interface on board Optional remote SIM Accessible via the 60 pin connector Power Electrical power 3 3 to 4 5 Vdc Peak currents and average power dissipation Refer to the Operating Power table in the Technical Specifications for peak currents and average power dissipation for various modes of operation Radio Features Frequency bands EGSM 900...

Страница 13: ...1900 MHz Personal Communication Services PCS band is allocated The GSM0128 Quad Band module also supports GSM 850 for use in North America The 900 1800 MHz Enfora Enabler IIG modules are available for deployment in Europe and the rest of the world 4 4 Wireless Data Application Possibilities A variety of applications can use the Enfora Enabler IIG module for transmitting and receiving data and voic...

Страница 14: ... modules shown in Figure 1 and Figure 2 are designed for easy integration with other components and packaging by leveraging the existing public GSM networks Compare the Enfora Enabler IIG to systems that require the construction operation maintenance and expense of a private wireless network ...

Страница 15: ...GSM0128IG001 14 Revision Draft 9 22 08 Figure 1 Applications Using the Enfora Enabler IIG module in a GSM GPRS Network ...

Страница 16: ...PDU Modes GPRS SMS MO MT CB Text and PDU Modes Voice Capability Speech Codec EFR FR HR AMR Radio Performance Multi Band GSM0128 Radio Frequencies 850 GSM 900 EGSM 1800 MHz DCS or 1900 MHz PCS Sensitivity 106 dBm Typical GPRS CS1 850 900 MHz Transmit Power Class 4 2 W 1800 1900 MHz Transmit Power Class 1 1 W System Requirements Host Interface Serial Interface DC Voltage 3 3 to 4 5 Vdc Application I...

Страница 17: ...PCS 1900 1 RX 1 TX full power 205 mA average 1 225 A peak Idle 5 mA Shutdown 50 uA GPRS Operation EGSM 850 900 4 RX 1 TX full power 275 mA average 1 725 A peak EGSM 850 900 2 RX 2 TX full power 440 mA average 1 725 A peak DCS 1800 4 RX 1 TX full power 240 mA average 1 325A peak DCS 1800 2 RX 2 TX full power 345 mA average 1 325 A peak PCS 1900 4 RX 1 TX full power 240 mA average 1 25A peak PCS 190...

Страница 18: ...n the GSM module shield must be soldered down on to a continuous ground plane The PCB trace that feeds the RF output port should be 50ohm characteristic impedance coplanar or routed into internal layers to keep the top layer continuous around and underneath the device Provide ample ground vias around metal tabs the RF trace and launch pad If possible keep I O and power traces away from the RF port...

Страница 19: ... Specifications 5 1 Enabler IIG Module Block Diagram Figure 2 Enabler IIG Module Block Diagram PWR Digital Baseband CPU SRAM Flash Memory Analog Baseband Power Mgmt RF Interface Tri band PA VCO Ser Intfc SIM Audio GPIO Analog BB Antenna Intfc RX Intfc RF ...

Страница 20: ...s3 2 to 200 Hz Mechanical Storage and Transportation Transportation vibration packaged ASTM D999 Drop packaged ASTM D775 method A 10 drops Shock un packaged 150 m s2 11 ms half sine per IEC 68 2 27 Drop un packaged 4 inch drop per Bellcore GR 63 CORE Mechanical Proposed Standards Transportation ETSI Standard ETS 300 019 1 2 Class 2 3 Transportation Operational ETSI Standard ETS 300 019 1 3 Class 3...

Страница 21: ...n 50 uA 5 3 2 GPRS Operating Power GPRS Operation Input Current Band Mode Low Nom Avg High Peak Units 1900 4 RX 1TX Full Power 240 1250 mA 2 RX 2TX Full Power 340 1250 mA 1 RX 1TX Full Power 195 1225 mA 1800 4 RX 1TX Full Power 240 1325 mA 2 RX 2TX Full Power 345 1325 mA 1 RX 1TX Full Power 195 1300 mA 900 4 RX 1TX Full Power 275 1650 mA 2 RX 2TX Full Power 425 1675 mA 1 RX 1TX Full Power 235 1650...

Страница 22: ... Class 4 2 W conducted power maximum 33 dBm 2 dB measured at the antenna port 5 5 Receiver Sensitivity Enfora Enabler IIG module Sensitivity Mode 1900 MHz 1800 MHz 106 dBm typical GPRS Coding Scheme 1 CS1 900 MHz 850 MHz 106 dBm typical GPRS Coding Scheme 1 CS1 5 6 Radio Power Reset Low is modem OFF High is modem ON Radio Power Reset Parameter Conditions MIN TYP MAX UNIT VIL Input Voltage Low 0 5 ...

Страница 23: ...GSM0128IG001 22 Revision Draft 9 22 08 6 0 Physical Interfaces 6 1 Physical Layout Figure 3 Enabler IIG Package Dimensions without integrated SIM carrier ...

Страница 24: ...verall module dimension Mated 60 pin I O connector stack height is 2 0 MM If mounting screw is used a nylon washer is recommended at board interface A maximum diameter of 4 00 should be used for all fastening hardware Antenna direct connect solder pad is 1 02 mm wide X 2 54 mm high Antenna ground pads are 2 03 mm wide X 2 54 mm high ...

Страница 25: ...ical mounting information Figure 5 Vertical Enabler IIG Mounting The Enabler IIG provides mounting tabs that can be soldered to a PCB These tabs provide circuit grounding for the module and their use is recommended Figure 6 provides mounting tab reference for PCB integration Figure 6 Enabler IIG Mounting Tabs ...

Страница 26: ...he host is a 60 pin SMT Dual Row Vertical Stacking 50MM 020 Pitch Plug Molex part number 53729 0604 6 4 2 PCB Integration I O Control Connector The mating connector for a board mount application is a 60 pin SMT Dual Row Vertical Stacking 50MM 020 Pitch Receptacle Molex part number 52974 0604 6 5 I O Signal Connector on the Enfora Enabler IIG Module The Enfora Enabler IIG module communicates with t...

Страница 27: ...uture use 21 Handset Microphone I INT_MIC Handset microphone input negative 22 Radio Power Reset I RADIO_PWR RST Radio power reset 23 Ground R GND Electrical power return for digital and analog grounds 24 Power Control Signal I PWR_CTL_SIGNAL Power Control Signal 25 Handset Microphone I INT_MIC Handset microphone input positive 26 Reserved Reserved for future use 27 GPIO 3 I O GPIO 3 General purpo...

Страница 28: ...ule s integrated circuits typically 2000 V the Enabler IIG does not have any protection against ESD events or other excursions that exceed the specified operating parameters The only exception is that the remote SIM lines on the main I O connector do have additional ESD protection that should handle standard human model contact ESD events Generally ESD protection typically TVS Transorb devices sho...

Страница 29: ... The Enfora Enabler IIG module uses a single voltage source of VCC 3 3V to 4 5V exact values of the uplink currents are shown in Tables5 3 1 GSM Operating Power and 5 3 2 GPRS Operating Power The VCC lines pins 1 to 6 should be connected on the application board The uplink burst will cause strong ripple on the voltage lines and should be effectively filtered It is recommended that 1000 to 2000 uF ...

Страница 30: ...call waiting is activated for a connected handset or hands free device the Ring pin switches to ground in order to generate acoustic signals that indicate the waiting call When a Fax or data call is received Ring goes low and will remain low Every 3 seconds a ring string is generated and sent over the Receive Data Out Rx line An incoming SMS can be indicated by an Unsolicited Result Code URC which...

Страница 31: ...ntrol to be an input this will satisfy the high impedance requirement The Reset pin can also be monitored as a system on off indication When the modem is powered on during a normal operating state this pin will be set high When the modem is powered down or in the off state this pin will be low Any monitoring circuit MUST be high impedance such as a logic gate or microprocessor input Parameter Para...

Страница 32: ...ler IIG can be turned OFF by either a low pulse on the PWR_CTL line or or by a software command ATt OFF see AT command guide for further information Section 6 8 4 3 describes various ways to provide the signal 6 8 4 3 Using the Power Control Signal Typical use powering module on off with a switch Figure 9 Power Control Switch The OFF Delay is controlled by the AT OFFDLY command A value of 0 disabl...

Страница 33: ... the Enabler IIG module in a machine to machine application using the external PWR_CTL signal when there is not an external processor controlling the power on off states The RTC deep sleep functions will NOT function since the PWR_CTL pin is tied low the processor will never stay in a RTC Sleep mode To reset the module either the RESET pin is toggled or power VBAT must be cycled ...

Страница 34: ...he Enabler IIG can be powered on by using the PWR_CTL signal and reset with the RESET signal When using the PWR_CTL the I O or serial lines can be at any voltage state desired It is recommended that the I O and serial lines be tri stated or set low when the modem is shutdown for an extended period of time to prevent any leakage of current from the processor to the modem Figure 11 Power Control Sig...

Страница 35: ...me to boot from power on to command prompt 1 1 Sec 6 8 5 Using VBAK pin 36 VBAK is a backup voltage that can maintain the RTC clock and alarm functions If VBAK is not present in the system intentionally or not and RADIO_PWR RST is active low the RTC clock may still be powered if leakage voltage exists on VCC Otherwise the RTC clock will lose power and be reset when VCC is restored PARAMETER PARAME...

Страница 36: ...L signal or the RADIO_PWR RST signal Figure 12 shows a power sequence when the PWR_CTL_SIGNAL signal is used to power up Figure 12 Power On Using Power Control Signal Figure 13 shows a power on with the PWR_CTL_SIGNAL signal but a shutdown with the RADIO_PWR RST signal Figure 13 Power On Using Power Control Signal Power Down Using Radio Power Reset ...

Страница 37: ... Note that the GPIO and serial port lines should not have any voltage on them with PWR_CTL_SIGNAL tied to GND the system will startup even if there is a voltage on the lines but it is not preferred This mode will NOT allow for the RTC sleep to function Figure 14 Power On Off using Power Control Signal tied to Ground ...

Страница 38: ...o 300 600 1200 2400 4800 7200 9600 14400 19200 28800 33900 38400 57600 115200 bits per second Default settings are 8 data 1 stop no parity and 115200 baud DTR may be used to force the modem into AT command mode from online data mode See AT Command Document command AT D RTS and CTS may be used for hardware handshaking DSR is always active connected to ground while the modem is on RING may be used t...

Страница 39: ...er Conditions MIN TYP MAX UNIT VIL Input Voltage Low 0 0 60 Vdc VIH Input Voltage High 1 11 1 8 Vdc VOL Output Voltage Low 0 45 Vdc VOH Output Voltage High 1 26 Vdc IOL IOH Rated Output Current 4 mA 6 9 1 Analog To Digital Input Pin 56 Resolution 10 Bit MADS voltaje reference 1 75 V Differential nonlinearity 2 2 LSB Integral nonlinearity Best fitting 2 2 LSB Input range 0 1 75 V STARTADC pulse mín...

Страница 40: ...AX amp gain 1dB 1 2 1 5 Earphone amplifier gain EARG 1 1 dB EARG 0 11 dB Earphone amplifier state in power drain High Z Earphone amplifier power supply rejection 1 kHz 100mvpp 50 dB 6 9 4 Headset Microphone Input Pin 42 Parameter Conditions MIN TYP MAX UNIT Maximum Input Range Mic to Mic Inputs 3 dBm0 Max digital sample amplitude when PGA gain set to 0 dB 32 5 mVrms Nominal Ref Level Mic to Mic 10...

Страница 41: ...ns MIN TYP MAX UNIT Headphone output swing at HSOL R Distortion 2 and 32 Ω VSP input level 3 dBm0 1 6 1 96 Vpp Distortion 2 and 32 Ω VSP input level 3 dBm0 1 48 1 85 Headphone L R amplifier gain 5 dB HSOL R amplifier state in power down High Z HSOL R amplifier power supply rejection 1 kHz 100mVpp 50 dB ...

Страница 42: ...hone PCB traces should be run in pairs and buried between two ground planes for best results The following figure provides a sample circuit design for connection of microphone and speaker pins Figure 16 Audio Reference Please note that this schematic can be zoomed to read the detail ...

Страница 43: ...e provisioned by the operator for data and or voice Always take care to protect the SIM the GSM terminal will not operate without the SIM installed The SIM provides the IMSI for authentication To gain access to the GSM network the network must recognize the IMSI number and the terminal must be able to properly decrypt the data sent by the network The SIM also serves as a buffer for SMS messages st...

Страница 44: ...xceed 25 4 cm 10 inches Remote SIM Power Parameter Conditions MIN TYP MAX UNIT VDD Remote SIM Supply Voltage 3 V Mode 2 7 3 3 Vdc 1 8V Mode 1 62 1 98 Figure 17 Remote SIM Interface ESD Protection 15 kV Air Discharge 8 kV Contact Discharge 6 10 2 1 Remote SIM Component Information A SIM carrier compatible for use on the Enabler IIG is a JAE Plug In SIM Card carrier with hinge JAE part number SF7W00...

Страница 45: ...uch as receiving a telephone call or an SMS Note Contact your local GSM operator to ensure that the services and modes have been provisioned for the SIM 7 2 Voice Communication The Enfora Enabler IIG module has full voice capabilities provided the necessary connections have been made for the speaker and microphone pins on the 60 pin I O connector The GSM0128 AT Command Doc has the entire list of c...

Страница 46: ...etwork for a previously received message Receiving a report from the network Notifying the network when the module has sufficient memory capacity available to receive one or more SMS messages after the module had previously rejected a message because its memory capacity was exceeded 7 4 SMS Features Supported by the Enfora Enabler IIG Module The following list details the key characteristics and a...

Страница 47: ... Enfora Enabler IIG module that the SIM be configured for the optional services that are required for the application 8 2 GSM Services Supported by the Enfora Enabler IIG Module The Enfora Enabler IIG module supports four GSM services modes of operation that must be enabled by the operator Voice calls MO and MT requires a telephone number SMS MO and MT uses the telephone number for Voice The GSM S...

Страница 48: ...gure the SIM for both MO and MT service to send and receive SMS configure the SIM either for MT alone to receive or for both MO and MT to send and receive Voice SMS GPRS Function MO MT MT Voice calls receive SMS make data calls MO MT MO MT Voice calls receive send SMS make data calls MO MT MO MT Voice calls receive send SMS make receive data calls requires an additional data telephone number ...

Страница 49: ...P Port UDP Socket Port and COM Port libraries All libraries are provided as a part of the Enfora Enabler IIG Integration Toolkit The AT command driver of the Enfora Enabler IIG module never exits the Command state that is it never enters the On line mode Although the host interface may not be able to access the AT command interpreter it is always running and is available via the API Mode over a PP...

Страница 50: ...Enfora Packet Application Programming Interface 9 4 1 UDP API Architecture The following information provides an overview of the Enfora UDP based API architecture Full details are provided in the GSM0308UG001 Enfora GSM GPRS Family API Reference Figure 18 provides the general structure for the UDP API Create Control Status Message Add UDP Header Add IP Header Add PPP Framing Write to COM Port Read...

Страница 51: ...s message structure sends the ATI command to the modem and receives Enfora Inc response from the modem Bytes Data Description Comments 0 19 IP Header 20 27 UDP Header 28 0x00 Sequence Number 29 0x01 30 0x04 AT Command Read Write 31 0x00 Reserved 32 0x41 AT Command ATI 33 0x54 34 0x49 Following data will be returned by the modem Bytes Data Description Comments 0 19 IP Header 20 27 UDP Header 28 0x0...

Страница 52: ...ries Messaging libraries Modem libraries Figure 19 Library Layout The table below can be used to help decide which library configuration is the best for a project SLIP access is not currently available UDP SLIP Port Library UDP PPP Port Library UDP Socket Port Library UDP Messaging Library with SLIP UDP Messaging Library with PPP UDP Messaging Library with Socket UDP Modem Library with SLIP UDP Mo...

Страница 53: ...er IP Header UDP Header Modem Control Message PPP End 9 5 2 Using Messaging Library Figure 21 provides the architecture for Messaging Library access UART Driver Port Library Host Control Interface Messaging Library Host Application Host Modem Figure 21 Using Messaging Library Messaging Library provides some important modem access services It builds a modem control message and converts the message ...

Страница 54: ...mplete modem access services In addition to the features already provided by the Messaging Library the modem library maintains a modem parameter database In order to maintain the parameter database the modem library requires more memory than the other libraries This makes the library unsuitable for some of the micro controller programming However it is a good library to use by applications in a pe...

Страница 55: ...serial port on the controlling computer Hook up power supply connect antenna and install SIM into modem 10 1 1 HyperTerminal Configuration for Enabler IIG The following provides an example for setting up a Windows HyperTerminal session that can be used to experiment with various configurations on the Enabler IIG for controlling computer 1 Select the connection interface Direct to Com 1 or whatever...

Страница 56: ...es Entry refers to the application The following convention describes the direction of the data exchange The data exchange from the customer application to the Enfora Enabler IIG module is designated as Entry The data exchange from the Enfora Enabler IIG module to the customer application is designated as Response Note With the exception of the command Online Escape Sequence all commands must be p...

Страница 57: ...d 10 1 4 Sending an Initialization String to the Enfora Enabler IIG Module The following example provides the sample AT commands and responses for the following initialization tasks Reset the module to the factory defaults Disable character echo Transmit Result Codes Set the module to Verbose mode to display result codes as words Set the DCD to match the state of remote modem Ignore the DTR Entry ...

Страница 58: ...erfaces that are externally available to the end user need to be ESD conditioned and terminated in some way Many of these interfaces should not be connected with power applied At the highest level this is done using some type of GSM test equipment such as Racal 6103E a computer and a serial interface tester The GSM test equipment must be able to simulate a GSM call and measure the key parameters r...

Страница 59: ...sts RXQUAL RXLEV BER Based Sensitivity Testing the following GSM functionality verifies proper network communication Functionality Parameters to be Tested Transmitter Frequency Error Phase Error PA Ramp Modulation Spectrum RF Power Steps Timing Advance Receiver BER Based RX Tests RXQUAL RXLEV BER Based Sensitivity Testing the following GSM functionality verifies proper network communication Functi...

Страница 60: ...laimed by purchaser or determines that the defect is not covered under this limited warranty Enfora will not be required to repair or replace the product but may instead reship the product to the purchaser in which case purchaser shall be responsible for paying Enfora s usual charges for unpacking testing and repacking the product for reshipment to purchaser Purchaser shall bear the risk of loss o...

Страница 61: ...NO EVENT SHALL ENFORA BE LIABLE FOR ANY INDIRECT SPECIAL EXEMPLARY INCIDENTAL OR CONSEQUENTIAL DAMAGES INCLUDING WITHOUT LIMITATION LOSS OR INTERRUPTION OF USE DATA REVENUES OR PROFITS RESULTING FROM A BREACH OF THIS WARRANTY OR BASED ON ANY OTHER LEGAL THEORY EVEN IF ENFORA HAS BEEN ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH DAMAGES Other Considerations Some jurisdictions may require a long...

Страница 62: ... For more information concerning type approval please contact Enfora Electromagnetic Compatibility EMC and Safety Requirements The Enfora Enabler IIIG module has been tested and approved for application in the United States of America US and the European Union EU The compliance details for each of these markets follow For other markets additional or alternative regulatory approvals may be required...

Страница 63: ...sure at defined in Section 1 1310 of the FCC Rules and Regulations Note Installation and operation of this equipment must comply with all applicable FCC Rules and Regulations including those that implement the National Environmental Policy Act of 1969 Part 1 Subpart I with specific regard to antenna sitting and human exposure to radio frequency radiation For further guidance consult the FCC Rules ...

Страница 64: ...such products This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions ...

Страница 65: ...y with current FCC regulations regarding human exposure to radio frequency radiation The following installation and operation restrictions apply to all Enfora Enabler IIIG products This device may only be used in fixed and mobile applications Portable applications as defined by the FCC are prohibited The use of this device for desktop and other applications where the antenna can easily be relocate...

Страница 66: ...e to radio frequency radiation the FCC has established the following three categories of transmitting devices Portable Devices devices where the antenna is located within 20 cm 7 87 inches of any person including the user if applicable Portable devices operating under the authority of Part 22 or 24 broadband PCS are limited to a maximum of 2 W EIRP Mobile Devices devices designed to be used in oth...

Страница 67: ...uch as 26 dBi Modifications and or additions to the Enfora Enabler IIIG GSM transceiver including use of antennas with higher gain than those authorized by the FCC are prohibited dBi antenna gain in dB relative to an isotropic radiator Antenna Avoidance Label Attach the following warning label directly to or displayed next to the antenna Furthermore this label must be visible to and easily readabl...

Страница 68: ...t the definition of mobile For all end products the OEM or integrator must provide instructions warnings and labels to ensure that the product complies with current FCC guidelines limiting human exposure to radio frequency radiation Current FCC regulations limit the EIRP of mobile devices to 2 W Because the nominal RF output power of the Enfora Enabler IIIG GSM1900 GSM transceiver is 1 0 W 31 dBm ...

Страница 69: ...Ireland Italy Latvia Lithuania Luxembourg The Netherlands Poland Portugal Slovakia Slovenia Spain Sweden United Kingdom EMC Safety Requirements for Other Countries In most other countries that have not been listed above there are similar rules and regulations that must be met for importing the Enfora Enabler IIIG module Each may require a different mark of approval for example the CB Scheme as an ...

Страница 70: ... EMC Electromagnetic Compatibility The ability of a device to function satisfactorily in its electromagnetic environment without inducing intolerable disturbance to that environment or to other devices ESD Electrostatic Discharge Static electricity that can damage electronic equipment EU European Union An organization of 15 European states whose purpose is to organize relations between the Member ...

Страница 71: ... Nationally Recognized Test Laboratory OSHA approved Nationally Recognized Testing Laboratory OEM Original Equipment Manufacturer PA Power Amplifier Packet A collection of data transmitted over a digital network in a burst PCS Personal Communication Services PDA Personal Digital Assistant PDU Packet Data Unit PPP Point To Point Protocol SIM Subscriber Identity Module SMS Short Message Service SMSC...

Страница 72: ...ure 7 Module Pin Orientation 25 Figure 8 Ring Indicate Timing 29 Figure 9 Power Control Switch 31 Figure 10 External Power Control Signal no external processor 33 Figure 11 Power Control Signal using external processor 33 Figure 12 Power On Using Power Control Signal 35 Figure 13 Power On Using Power Control Signal Power Down Using Radio Power Reset 35 Figure 14 Power On Off using Power Control Si...

Страница 73: ...tacting Enfora For technical support and customer service dealing with the modem itself contact the company where you purchased the product If you purchased the product directly from Enfora visit the SUPPORT page on the Enfora website http www enfora com ...

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