Itronix X-C 6250 Pro, User Manual

Page: 148 / 173

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X-C 6250 Pro User’s Manual
79-0003-003 22 October 1999
Landline Modems
The modem doesn’t work
•
Make sure a modem is installed. Locate the “Config” string label on
the bottom of the mobile computer; a modem is not installed if the
seventh digit is Z .
•
When you first try to use HyperTerminal or similar application, the
system responds with a message asking if you want to install the
modem. Answer “Yes” to this question and follow the instructions on
the screen to install it.
•
If you are operating in DOS, verify that the modem has been
powered on using MODEM ON. MODEM OFF will power off the
modem to conserve power when the modem is not in use.
•
Make sure the communication settings are correct in your
application. Refer to the online Help for your application.
•
Make sure you have the correct COM port selected in your
application. Refer to the online Help for your application. The
following table describes the correct settings for each modem type.
Modem type COM port
External COM1 or COM2
Internal landline COM3
Internal CDPD COM4
•
Make sure that the Interrupt Request lines (IRQs) for COM3 or
COM4 specified for Windows match the IRQ lines specified in the
SCU.
You may also need to try a different IRQ setting. See Section 5,
“Customizing Settings.”
The modem doesn’t dial a number
Check these things:
•
If you are running a program in MS-DOS, make sure the modem is
turned on using MODEM ON before you run the application. MODEM
OFF will power off the modem to conserve power when the modem
is not in use.