User Manual: GSM2218PB001MAN Enfora MT-GL (GSM/GPRS) User Manual Release 1.03 Confidential and Proprietary Information - © 2005 Enfora, L.P. Do not duplicate without express permission from Enfora, L.P. Enfora L.P. 661 E. 18th Street Plano Texas 75074 www.enfora.
Version: 1.03 Date: 04/07/06 Status: Released Document Control ID: GSM2218PB001MAN General All efforts have been made to ensure the accuracy of material provided in this document at the time of release. However, the items described in this document are subject to continuous development and improvement. All specifications are subject to change without notice and do not represent a commitment on the part of Enfora, L.P. Enfora, L.P.
Regulatory Compliance FCC The modem was tested and certified to meet FCC Parts 15 in a stand-alone configuration, which demonstrated that the GSM2218 MT-GL complies with Part 15 emission limits. FCC Part 22 & Part 24 is covered by the Enfora Enabler-IIG "modular approval" process for a transmitter.
Warranty Information LIMITED WARRANTY Scope Enfora warrants to the original purchaser of the product that, for a period of one (1) year from the date of product purchase, the product hardware, when used in conjunction with any associated software (including any firmware and applications) supplied by Enfora, will be free from defects in material or workmanship under normal operation.
Exceptions and Disclaimers Enfora shall have no obligation under this limited warranty for (a) normal wear and tear, (b) the cost of procurement of substitute products or (c) any defect that is (i) discovered by purchaser during the warranty period but purchaser does not notify or request an RMA number from Enfora, as required above, until after the end of the warranty period, (ii) caused by any accident, misuse, abuse, improper installation, handling or testing, or unauthorized repair or modification of th
Date November 11, 2005 Rev 1.00 December 7, 2005 1.01 January 4, 2006 April 7, 2006 1.02 1.03 Author Mike Cook Description Released Diane O’Neil Diane O’Neil Added warning in section 2.
Table Of Contents 1 Introduction ........................................................................................................................... 1 About the GSM/GPRS MT-GL.............................................................................................. 1 About This Manual................................................................................................................ 1 Contents of Basic Package .........................................................................
1 Introduction 1.1 About the GSM/GPRS MT-GL The GSM/GPRS MT-GL (hereafter referred to as “MT-GL”) 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 MT-GL to simultaneously act as a stand alone GPS reporting device and wireless data retrieval unit.
1.6 MT-GL Front and Back View Figure 1 - Enfora MT-GL Front View Figure 2 - Enfora MT-GL Back View GSM2218PB001MAN - GSM/GPRS MT-GL User Manual Copyright 2005, Enfora L.
1.7 Product Specifications System Requirements Interface: Serial – Host DSUB 9 connector L x W x H: 4.0 x 5.0 x 1.
2 Installation Instructions provided in this section describe the hardware installation of the MT-GL device. To install the MT-GL in a vehicle, follow these steps: • Choose a convenient location in the vehicle – either in the trunk or interior of a vehicle. Avoid locations that might expose the device to excessive heat or moisture.
The bracket should be used as a template to mark screw holes for installation. See Figure 4 - MT-GL Mounting Brackets. The mounting holes are designed for a number 10 screw. Once mounting holes have been located for placement, the mounting plate can be easily broken into two parts as demonstrated in Figure 5 - MT-GL Mounting Bracket (separated). The mounting bracket must be separated in order to affix it to the MT-GL. The two pieces will easily slide into the grooves on the modem.
Figure 5 - MT-GL Mounting Bracket (separated) Figure 6 - MT-GL Bracket Installation GSM2218PB001MAN - GSM/GPRS MT-GL User Manual Copyright 2005, Enfora L.
Figure 7 - MT-GL Bracket Installation 2.2 Installing Cables During installation, the following precautions will help ensure proper operation of the MT-GL • • • • Remove power from the MT-GL. Do not create loops, sharp bends or crimps in the cables All cables should be attached to the vehicle and equipment in such a way to reduce stress or wear caused by vibration generated by moving vehicles.
2.2.1 12 pin Connector The user can purchase the optional 12-pin external I/O connector for the Enfora MT-GL that can be used to interface with other devices. Enfora can provide an optional cable and connector (Part #ADT2218). The user also has the option of building his/her own cable. Table 1 describes the pin functionality for this 12 pin I/O connector. Pins that are not planned for usage can be left open without anything connected to them.
2.2.2 MT-GL Serial Adapter (Optional) Enfora P/N ADT2218 can be used to provide a standard serial interface for the MT-GL. This adapter provides a standard DB9 serial interface and power to the unit. The adapter would be used for loading new software onto the MT-GL. The customer may choose to connect directly to the 12-pin connector serial interface pins, or order this convenient adapter from Enfora. Note: Only three of the pins are used; ground, serial in and serial out. See Figure 9 - 12-Pin Connection.
The customer can also build their own cable, if they choose. The following information contains photographs and the manufacturer’s (AMP/Tyco) part numbers for the parts needed to build the cable. Enfora 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 (Enfora part number CON-3000-0112.
DB-9 Pinout There are three pins that are used to 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 1 on the MT-GL Pin 12 on the MT-GL Pin 2 on the MT-GL GSM2218PB001MAN - GSM/GPRS MT-GL User Manual Copyright 2005, Enfora L.
2.3 Installing Subscriber Identity Module (SIM) Card The SIM, an integral part of any GSM terminal device, is a “smart card” that is programmed with subscriber information. The user information consists of an International Mobile Subscriber Identity (IMSI) number which is registered with the GSM/GPRS service provider and an encryption Ki (pronounced “key”). This information consists of a microprocessor and memory installed on a plastic card.
2.4 Audio In/Audio Out The only way of connecting the microphone/speaker is via pins 3 - 6 of the 12-pin connector. ! Please follow the specifications as listed in the table below. Enfora is not liable for damage to the MT-GL caused due to user error. Ear – Speaker Output: Parameter Conditions Maximum Input Range – Mic(+) to Mic(-) Inputs 3 dBm0 (Max. digital sample amplitude when PGA gain set to 0 dB) Nominal Ref.
2.5 Connecting GSM/GPRS modem Antenna The user must supply the GSM/GPRS antenna. The antenna must have a nominal impedance of 50 Ohms. The VSWR 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 MT-GL 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.
2.6 Connecting GPS Antenna The user must supply the GPS antenna. The GPS receiver inside the MT-GL powers the pre-amplifier in the GPS antenna (Active-style) by applying a power of 3.3 Volts to the center conductor of the RF input to the GPS receiver. If a passive-style GPS 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 MT-GL model is a SMA female connector.
2.7 Connecting the Power Source The GSM/GPRS MT-GL has an input voltage range of 9 – 30 V DC. (See Table 3 and Table 4). The power and ignition pins can support 9 – 30 V DC input voltage. The user has an option to connect these wires depending on the desired functionality. Described below are the desired functionality and their associated wire connecting procedure: Use of the device outside of the specified voltage range may result in damage to the device and/or undesirable results.
• 2.8 Device in Low Power Mode when Ignition Turned Off o Connect the power and ground wires of the MT-GL to the battery. o Connect the ignition wire of the MT-GL to an auxiliary power source, i.e. ignition. o Device enters low power mode when ignition line goes low. This feature has to be enabled via the software configuration (see AT$PWRSAV command for more details). o Device enters normal power consumption mode when auxiliary power is supplied. o Device goes through a reset upon ignition on.
3 Additional Software Features The following software features are included in version 0.6.0 and greater: A user can send AT commands, via SMS, to the MTG in the following format: >RSP=[T/F];ID=[modem id];[at command]< [T/F] field has to be set to either T or F. Setting of T indicates that the response to an AT command will be sent back to the originator. Setting of F indicates that the response to an AT command will be discarded [modem id] field has to be the same value as AT$MDMID command setting.
The ability to store event data in memory, upon event trigger occurrence, and transmit data when desired. • The user can configure the MT-GL to store event-generated data, to be sent over the air to a remote server, in its internal memory. This feature can be enabled or disabled using the AT$MSGLOGEN command. • “Total Number of Unread Messages” is decremented if an unread message is read via the AT$MSGLOGRD command.
4 Appendix 1 – Cable Wiring Diagrams Figure 13 – Wiring for Power Only Figure 14 – Wire for Programming Cable GSM2218PB001MAN - GSM/GPRS MT-GL User Manual Copyright 2005, Enfora L.
