Apple IIe Card - Manual (Page 159)

My Apple IIe program won’t recognize my modem
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Make sure the modem is connected correctly to its power source and
that the modem is turned on.
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Make sure the modem cable is connected to the correct port. The
modem can be connected to either the modem or printer port, but
make sure the panel for that port’s Serial Card is set to Modem in
the Option Panel.
■
Make sure the Serial Card assigned to the port you are using is
installed in an active slot—usually slot 1 for the Printer Port Super
Serial Card, slot 2 for the Modem Port Super Serial Card.
■
Make sure the AppleTalk option is turned off in the Macintosh
Chooser if the modem is connected to the computer’s printer port.
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Make sure the program’s communication options are consistent with
the slot settings in the Option Panel. (See the manual that came with
the telecommunication program you want to run.)
My modem doesn’t work properly
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Go to the modem Serial Card panel or the printer Serial Card panel in
the Option Panel—depending on which port your modem is attached
to—and turn on the Interrupts feature in the Port Characteristics
portion of the panel.
My modem doesn’t work properly at speeds greater
than 1200 baud
■
Select Monochrome in the General Controls portion of the
Option Panel.
Problems with the modem
Appendix A: Troubleshooting 143