WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
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Wavecom Confidential & Proprietary Information
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
6 Troubleshooting
This section of the document describes possible problems encountered when
using the Fastrack modem and their solutions.
To review other troubleshooting information, refer the ‘FAQs’ (Frequently Asked
Questions) page at www.wavecom.com
or use the following link:
http://www.wavecom.com/support/faqs.php
6.1 No communication with the modem through the serial
link
If the Fastrack modem does not answer to AT commands through the serial link,
refer to the table below for possible causes and solutions.
Table 5: Solutions for no connection with modem through serial link
If the modem
returns…
Then ask Action
Is the modem powered
correctly?
Make sure the external power
supply is connected to the modem
and provides a voltage in the range
of 5.5 V to 32 V.
Is the serial cable
connected at both sides?
Check the serial cable connection
Nothing
Does the serial cable
follow correctly pin
assignment shown in
paragraph 3.2.1.3.
Connect the cable by following pin
assignment given in paragraph
3.2.1.3.
Is the communication
program properly
configured on PC?
Ensure the setting of the
communication program is fit to
setting of modem.
Modem factory setting is:
Data bits = 8
Parity = none
Stop bits = 1
Baud = 115.200 kbps.
Flow control = hardware
Nothing or
non
significant
characters
Is there another program
interfering with the
communication program
(i.e. Conflict on
communication port
access)
Close the interfering program.
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