Enfora MT-G User manual

Enfora® MT-G
Quick Start Guide
Revision 1.00
Application Note:
GSM2208AN001
Enfora, L.P.
661 East 18th Street Plano, Texas 75074-5601
www.enfora.com

GSM2208AN001 – Enfora MT-G Quickstart Guide Page 1
Copyright Enfora, LP 2005
Objective:
The objective of this document is to provide the user with basic information on how to
configure the modem and verify communication with Enfora’s UDPAPI test server.
Equipment Needed:
In this example the requirements are:
• GSM2208 MT-G
• Enfora MT-G Power cable CAB0004 or
a. Molex connector 39-01-2040 and pins 39-00-0077 or equivalent
b. Wire minimum 20 AWG for 20 ft (max) (16 AWG recommended)
for power.
• Standard 9 Pin Serial cable
• Power supply
• GSM quad band antenna
• GPS 3.3v Active antenna
• Computer with one available Serial port or USB-to-serial converter
• GSM/GPRS SIM with GPRS data enabled.
• An APN (Access Point Name).
• Username and Password, if GPRS is operating on a non-transparent network.
Note: If you don’t know the name of the APN you need to use, please contact
your cellular network carrier for that information. Once you have acquired
this information, please complete Application Note GSM0000AN019 –
GSM Network Configuration Worksheet and keep this worksheet for future
reference.
References:
• GSM2200PB002MAN – Enfora® MT-G User Manual
• GSM0107PB001MAN - Enabler-IIG AT Command Set
• GSM0000AN019 – GSM Network Configuration Worksheet

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Copyright Enfora, LP 2005
Procedures:
1. Configuring the computer and verifying correct communications.
Note: The following examples use Windows 2000 and HyperTerminal. Any
Terminal program should work, using the parameters in Step A.
a. Default Serial Parameters
1. 115200 baud rate
2. 8 data bits
3. 1 stop bit
4. No Parity
5. Flow Control = None
b. Determine which Com port to use
1. On older computers, there is usually a built in Com port. This is
normally Com1
2. If you are using a USB-to-serial converter, you will need to
determine which Com port it is installed on.
Note: If the USB-to-serial converter has not been installed, install the
necessary drivers per the instruction supplied by your USB-to-Serial
device. Then leave the device unplugged.
3. Open up the System Properties window. This is done through
the Control Panel > System or right-click on My Computer
and select Properties. Select the Hardware Tab. On Windows
2000 the screen looks like the following:

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Copyright Enfora, LP 2005
4. Select the Device Manager button. Expand the Ports section by
selecting the +sign beside Ports. Your window should look like
the following:
5. Plug in the USB-to-Serial converter. The window should change
to show the USB-to-Serial converter installed.

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Copyright Enfora, LP 2005
6. Most devices will show the Com port next to the device name.
Record this number. In this case, it is COM12.
Note: Make sure there is no “!” or “X” next to the USB
device. If you see an “!” or an “X,” the device is not properly
installed and will not work.
c. Start HyperTerminal
On Windows 2000, click on:
Start>Programs>Accessories>Communications>HyperTerminal
1. You should see the following screen.

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Copyright Enfora, LP 2005
3. Enter a name for the Connection. In this example, the Name is
Enfora Com1.
4. Click OK.
5. The next window that will appear is the Connect To window.
6. Change the Connect Using setting to the Com port that was
determined in Step B.
7. Click OK.
8. The next window is the Port Settings window.

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Copyright Enfora, LP 2005
9. Make sure the settings match the example.
10. Click OK.
11. Now the Main Program Window should appear.

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Copyright Enfora, LP 2005
d. Terminal Setup Testing.
1. Make sure the cursor is in the main window.
2. Start typing characters.
3. If all settings are correct, you should not see anything happening
in the main window.
4. Jumper Pins 2 and 3 together on the Serial connector.
5. Start typing characters.
6. You should now see what you are typing appearing in the main
window.
7. If this happens, the COM port is configured correctly.
2. MT-G panel descriptions
a. Front Panel
Figure 1
b. Back Panel
Figure 2
3. Preparing the Power and Serial Communications Cable
a. Use a factory-built wiring harness or build a wiring harness according to
the following diagram.
Note: The Ignition (pin 10) is Optional and is used to sense an
Ignition On event from the vehicle and will cause the modem to
reset if power is removed and reapplied to this input.
Power LED
GPS Status
LED
SIM Slot
GSM status LED
Serial Port

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Copyright Enfora, LP 2005
Figure 3
4. Connecting the GSM/GPRS antenna
a. Choose an antenna that is designed for the frequency band in which the
modem is currently going to operate. The antenna jack is a standard TNC
Female.
Note: 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.
b. Attach the GSM/GPRS antenna to Modem Ant jack.
GSM/ GPRS
Modem Antenna
Jack
Figure 4
Ground
Power
Ignition

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Copyright Enfora, LP 2005
5. Inserting the SIM and applying power
Note:
The SIM card is not provided with the MT-G 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. Without the SIM installed,
MT-G modem is limited to emergency voice communication
only.
!
Ensure the power to the MT-G is disconnected before inserting
the SIM card. Failure to do so might result in unusable MT-G or
a damaged SIM card.
!
Enfora is not liable for damages to the MT-G when inserting a
SIM card inside the device. (GSM2218 only).
a. Insert the SIM per the following picture:
1. Slide the SIM Lock Door to the left to lock the SIM into the
holder.
Insert the SIM into the SIM
Slot with the notch going into
the slot first, and facing
toward the left side of the
modem.