Sierra Wireless AirLink FX100, Руководство пользователя

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4112221 Rev 7.2 June 19, 2013 72
10. Troubleshooting the FX Series
This section of the document describes possible problems that might be encountered when using the
FX Series and their corresponding solutions.
To read about other troubleshooting information, refer to the Knowledge Base page at
http://www.sierrawireless.com/en/Support/knowledgebase.aspx .
10.1. No Communications with the FX Series
through the Serial Link
If the FX Series does not answer to AT commands through the serial link, refer to the table below for
possible causes and their corresponding solutions.
Table 60. No Communications with the FX Series Through the Serial Link
If the FX Series
returns
Then ask Action
Nothing
Is the FX Series powered correctly?
Make sure that the external power
supply is connected to the FX Series
and provides a voltage within the range
of 4.75V to 32V.
Is the serial cable connected at both sides? Check the serial cable connection.
Does the serial cable correctly follow the pin
assignments? Refer to section 5.1.2 Serial
Interface for more information about the
serial cable pin assignments.
Connect the cable by following the pin
assignments as given in Table 13 Serial
Connector Pin Description.
Nothing or non-
significant characters
Is the communication program properly
configured on the PC?
Ensure that the settings of the
communication program are compatible
with the settings of the FX Series.
The FX Series factory settings are:

Data bits = 8

Parity = none

Stop bits = 1

Baud = 115200 bps

Flow control = hardware
Is there another program interfering with the
communication program (i.e. conflict on
communication port access)?
Close the interfering program.
10.2. Receiving
“ERROR”
The FX Series
returns an “ERROR” message (in reply to an AT command) in the following cases:

The AT command syntax is incorrect. In this case, check the command syntax (refer to
documents [1] Open AT Application Framework AT Commands Interface Guide and [2]
AirPrime SL808xT and Q2698 Open AT Framework Commands Interface Guide for more
information).

The AT command syntax is correct, but was transmitted using the wrong parameters