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Testing a Standalone Unit

70 G24-L Module Hardware Description November 15, 2008

Testing a Standalone Unit

This section describes how to perform a G24-L functionality test, whose purpose is to:

• Introduce the user to the G24-L

• Explain how to work with the G24-L unit

• Describe how to evaluate basic G24-L features

The test setup provides a wide platform through which a G24-L unit can be evaluated. The

specific test procedure described below covers only a few of the G24-L’s many features. Using

this setup, you can perform several additional tests on the G24-L.

The test is performed using two modems, one of which is the G24-L. The modems communicate

with each other through a single computer, which also controls their operation.

The test requires knowledge about the operation of the G24-L Developer’s Kit, terminal

applications and AT commands. Refer to relevant documentation for assistance.

To perform the test, you need the following:

• A G24-L OEM cellular engine unit

• A G24-L Developer's Kit

• A desktop or laptop computer, which includes:

– A free serial communications port (RS232)

– A connected and active line modem (internal or external)

– A terminal application (such as HyperTerminal)

Test Setup

To Setup the G24-L Test

Follow this procedure (Figure 5-1) to set up your equipment before performing the test:

1. Verify that the computer you intend to use for the test is equipped with a working

line modem

You can use a second G24-L unit instead of the line modem. When doing so, you must repeat

the setup procedure that follows for the additional G24-L.

2. Set up the G24-L and the Developer Board as described in “Initial Setup” in

“Chapter 2: Developer Board and Interfaces Description” in the “G24-L Developer’s Kit”

(Motorola part no. 6802984C10)

3. Verify that the G24-L has adequate reception from the local GSM network

4. Connect the Developer Board’s RS232 port to the computer’s serial port

5. Open a terminal application window (such as HyperTerminal) and configure it to operate

with the serial port occupied by the

G24-L

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Motorola AT Commands G24-L Información técnica Pagina 96