3
AddressshouldalreadybesetbyWindowstotheCOMport
addressusedby the modem (refer to Table 2-1). Change the
Interrupt Request Line (IRQ) to match the IRQ on the
modem. If you have set the modem to COM4/IRQ2, do not
selectIRQ2.YouwillneedtosettheIRQinControlPanelto
IRQ9forWindowstorecognizethemodem.(Inanoperating
system designed for 286 or better machines, IRQ 9 is
equivalent(redirected) to IRQ2.)
A modem setting which skips one or more COM port
assignments requires special attention in the Windows 3.x
Control Panel. For example, if your computer is equipped
with two serial ports (COM1 and COM2) and have set the
modem to COM4 instead of COM3, the Control Panel
settings for COM4 may say Default. In this case, Windows
3.x will operate the modem as the third serial device and
recognize it as “COM3” (This unusual COM port reassign-
ment does not occur in future releases of Windows). The
correct COM4 address (2E8) has been placed into the
ControlPanelCOM3position.ConfiguretheCOM3entryin
ControlPanelbychangingtheIRQboxtomatchtheIRQthat
has been set on the modem. (When running any Windows
3.x-basedcommunicationorfax programs, select COM3 as
the COM port for the modem.)
Afterthesesettingsaremade,clickOK.ClickRestart
Now. Windows can now recognize your modem.
Note: Since the “COM3” substitution for your
COM4 modem only occurs under Windows 3.x,
your DOS communication and fax programs will
still recognize the modem configuration as COM4.
Wesuggest the followingcommunicationparameters
when you first use your data communication software.
Consult the software manual for information on using these
and other parameters/features.
38,400 bps; 8 data bits; no parity; 1 stop bit; RTS/
CTS flow control set to “on;” initialization string:
AT&F
The commands used by the modem are compatible
withthecommandsetusedbyIntelmodems.Selectan“Intel
144I Faxmodem” type in your data communications soft-
ware, select a “Generic Class 1” type in your fax software
and select “Cirrus Logic” in your Voice software.
