Comtrol RocketPort Windows 98 - Manual (Page 27)

RocketPort 485 27
Windows 95/98
Pay attention to the Conflict information window, as it displays the
names of other devices using the selected interrupt.
9. Make sure the Use automatic settings checkbox is clear (empty).
10. Click OK to return to the Resources tab.
Optionally, if it is an ISA controller, select Basic Configuration 2 to
run without an interrupt.
Optionally, if it is a PCI controller, you may be able to use the
System Setup Utility to allocate IRQ lines between the ISA and
PCI bus. If the PCI slot does not have an IRQ assigned to it, the
driver uses the system timer for its service. Use of an IRQ is
strongly recommended for port speeds of 115,200 and higher.
11. Click OK to exit the System Properties window.
12. Reboot the system so that your changes take effect.
RocketPort 485
If you have installed one or more RocketPort 485 adapters in your
computer and have configured the adapters for RS-485 operation (see
the RocketPort 485 Hardware Installation Card for more information),
read this subsection.
Note: RS-485 operation is configured by setting jumpers on the
RocketPort 485. If you have not installed at least one RocketPort
485 and configured it accordingly, do not use this option.
This driver supports toggle-mode (toggle RTS low during transmission)
RS-485.
This mode must be invoked in an application by using a custom driver
call as demonstrated by the rtty.exe and wcom32.exe programs. Source
is available for these files in the \RS485 subdirectory that is created
when you extract the driver files. You can get instructions for RTTY by
entering rtty at the DOS prompt. RS-485 toggle can be invoked from a
menu button in the sample version of WCOM32.
Adding RocketPort Cards
To add more PCI-bus adapters to an installed and working RocketPort
or RocketModem installation, simply shut down the computer and
install the new boards. When the computer is switched on again, it
recognizes the new boards and installs driver software for each port
automatically.
To add more ISA-bus adapters to an existing installation, follow these
steps: