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1     Introduction

 

 

1.1  About the GSM/GPRS WorldTracker AVL

 

 

The GSM/GPRS WorldTracker AVL (hereafter referred to as “WorldTracker AVL”) is an Automated 
Vehicle Locating (AVL) device that utilizes a GSM/GPRS modem and a Global Positioning Satellite 
(GPS) module.  Working together, these technologies allow the WorldTracker AVL to simultaneously 
act as a stand alone GPS reporting device and wireless data retrieval unit.  The WorldTracker AVL 
provides a flexible AVL solution with Input/Output 
(I/O), six selectable National Maritime Electronics Association (NMEA) GPS data format, Trimble 
ASCII Interface Protocol (TAIP) GPS data format, and Security Concepts’s own proprietary Binary 
GPS data format. The WorldTracker AVL is designed to work in a stand-alone device in an 
automobile.  Security Concepts’s WorldTracker AVL provides maximum AVL versatility in a single 
affordable device. 

 

1.2  About This Manual

 

 

Contained in this manual are instructions on how to install and configure the WorldTracker AVL.  
Please follow the instructions herein closely to avoid damaging the WorldTracker AVL. 

 

1.3  Contents of Basic Package

 

 

 

Security Concepts WorldTracker AVL 

 

Mounting brackets 

 

Documentation CD-ROM 

 

1.4    Available Accessories

 

 

The following accessories for the WorldTracker AVL are available directly from Security Concepts: 

 

 

Combination GPS and GSM/GPRS antenna.  There are two models available; through-hole 

and magnetic mount. 

 

12-pin serial I/O loading cable with DB-9 connector. 

 

12-pin connector with pins. 

 

1.5    System Requirements

 

 

It’s necessary to have some type of terminal equipment, which includes a serial port, in order to 
configure the WorldTracker AVL modem.  This can be a computer running a Windows Operating 
System with the HyperTerminal program. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for AVL

Page 1: ...le Security Concepts s WorldTracker AVL provides maximum AVL versatility in a single affordable device 1 2 About This Manual Contained in this manual are instructions on how to install and configure the WorldTracker AVL Please follow the instructions herein closely to avoid damaging the WorldTracker AVL 1 3 Contents of Basic Package Security Concepts WorldTracker AVL Mounting brackets Documentatio...

Page 2: ...1 6 WorldTracker AVL Front and Back View Figure 1 Security Concepts WorldTracker AVL Front View Figure 2 Security Concepts WorldTracker AVL Back View ...

Page 3: ...gnition Sense 1 Audio Input Output GPRS Packet Data Environment Mode Class B Multislot 10 Certified Protocol GPRS Release 97 SMG 31 Coding Schemes CS1 CS4 Packet Channel PBCCH PCCCH Operating 30 C to 70 C Spec Compliant 20 C to 60 C Storage 40 C to 85 C Humidity Up to 95 non condensing GSM Functionality Status Indicator Voice Full Rate Enhanced full rate and half rate AMR GSM2218 CS Data Asynchron...

Page 4: ...void locations that might expose the device to excessive heat or moisture Hold the WorldTracker AVL in place and mark the location for mounting screw holes Using the markings as a guide drill mounting holes in those positions Align the WorldTracker AVL in the drilled holes and secure it with mounting screws The WorldTracker AVL is NOT a waterproof or sealed device Care must be taken to ensure the ...

Page 5: ...ment in such a way to reduce stress or wear caused by vibration generated by moving vehicles Use proper terminations on all power cables 2 2 1 12 pin Connector The user can purchase the optional 12 pin external I O connector for the Security Concepts WorldTracker AVL that can be used to interface with other devices Security Concepts can provide an optional cable and connector The user also has the...

Page 6: ...erface and power to the unit The adapter would be used for loading new software onto the WorldTracker AVL The customer may choose to connect directly to the 12 pin connector serial interface pins or order this convenient adapter from Security Concepts Note Only three of the pins are used ground serial in and serial out See Figure 9 12 Pin Connection Pin Number One Figure 9 12 Pin Connection ...

Page 7: ... parts needed to build the cable Security Concepts recommends using 20 gauge wire when building the connector Pin Housing 2 87499 1 Pins 8523 6 NOTE Instead of using the previous two parts you can build the cable using the Wago 733 112 connector This connector is keyed so the user won t be able to insert the connector into the WorldTracker AVL the wrong way ...

Page 8: ...connect to the serial port of your computer These are for transmit out receive in and ground The following diagram displays the serial end of the interface cable Pin 12 on the WorldTracker AVL Pin 1 on the WorldTracker AVL Pin 2 on the Worldtracker AVL ...

Page 9: ...lot provided in the front of the device See Figure 10 Inserting a SIM below Note The SIM card is not provided with the WorldTracker AVL device The SIM must be obtained from the GSM GPRS service provider and must be provisioned by the operator for data and or voice Always take care to protect the SIM WorldTracker AVL s GSM GPRS related functionality will not operate without the SIM installed Ensure...

Page 10: ... Mic to Mic Nominal Ref Level Mic to Mic Differential Input Resistance Mic to Mic Microphone Pre Amplifier Gain Inputs 3 dBm0 Max digital sample amplitude when PGA gain set to 0 dB dBm0 dB 32 5 mVrms 10 100 kΩ 25 6 Bias Voltage on Mic 2 0 or 2 5 V 2 0 2 5 Vdc Mic Bias Current Capability 0 0 5 mA Handset Speaker Output Parameter Conditions MIN TYP MAX UNIT Maximum Swing Ear to Ear Maximum Capacitiv...

Page 11: ...SWR must be less than 2 0 1 System antenna gain should be 0 2 dB for optimum performance The antenna connector on the GSM GPRS WorldTracker AVL model is a TNC female connector The antenna has to be connected to the connector labeled MODEM ANT See Figure 11 GSM GPRS Antenna Connection GSM GPRS Antenna Figure 11 GSM GPRS Antenna Connection ...

Page 12: ...PS antenna must be used please verify that it has a DC block installed in order to prevent shorting to ground GPS antenna connector on the WorldTracker AVL model is a SMA female connector The GPS antenna must be placed in an area where it can have direct view of the sky The GPS antenna must be connected to the connector labeled GPS ANT See Figure 12 GPS Antenna Connection User must disconnect powe...

Page 13: ...A 0 570 32 0 Table 3 GSM Operating Power Security Concepts MT G 12 Volts Average Current mAmps Peak Current Amps GSM 850 900 GPRS TBD1TX 1RX 1RX Idle 400 mA 190 mA 55 mA 0 590 32 0 DCS 1800 PCS 1900 GPRS TBD 400 mA 200 mA 55 mA 0 560 31 5 WorldTracker AVL Always ON Table 4 GPRS Operating Power o Connect the power and ground wires of the WorldTracker AVL to the battery leads The WorldTracker AVL wi...

Page 14: ...r to the modem LED is on when power is turned on and the modem is operational LED is off when power is removed or when the modem enters low power mode User LED 1 This LED can be configured to display registration GPS fix status or other user functions By default this LED indicates GSM GPRS registration status LED state of OFF indicates that the device is not attempting to register to the network B...

Page 15: ...EL AT EVDELA AT EVENT AT EVTIM AT FRIEND AT GPSRD AT IDLETO AT MDMID AT MSGLOGEN AT MSGLOGRD AT MSGSND AT PADBLK AT PADBS AT PADDST AT PADSRC AT PADTO AT PKG AT SMSDA AT UDPAPI AT WAKEUP AT CGDCONT AT W Note Please refer to the MT G AT Command Set Document GSM2000PB001MAN for detailed information on AT Command execution Please note the following information regarding sending AT commands via SMS AT...

Page 16: ... still remains at 50 that message is transmitted to the remote server A user can also read a message that has already been read from the memory by passing in the appropriate starting index number Synchronize RTC time with GPS time RTC time is synched with GPS time automatically RTC time is synched with GPS time every time the device is powered up and the device acquires valid GPS data RTC time is ...

Page 17: ...4 Appendix 1 Cable Wiring Diagrams Figure 13 Wiring for Power Only Figure 14 Wire for Programming Cable ...

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