User`s manual

PCI Express Board User's Manual Driver Installation: Windows Vista/2008
3-11
4. Select an Rx FIFO Trigger from the Rx FIFO Level pull-down list. Rx FIFO trigger levels of High, Middle,
and Low are available, with the default set to High (120 bytes). Select Set the change to all ports option
to apply this Rx FIFO Trigger to all ports.
5. Select a Tx FIFO Level from the Tx FIFO Level pull-down list. Tx FIFO Levels of High, Middle, and Low
are available, with the default set to High (128 bytes). Select Set the change to all ports option to apply
the just defined Tx FIFO Size to all ports.
Tx FIFO
Rx FIFO
High
128
120
Middle
64
60
Low
1
1
Unit: Bytes
6. If you are using CP-118EL-A, CP-114EL, CP-114EL-I, CP-132EL, or CP-132EL-I, select Interface (RS-232,
RS-422, 2-wire RS-485, 4-wire RS-485) and Termination Resistor (120Ω, Enable or Disable) to configure.
We use the CP-118EL-A to illustrate. The following figures show the settings for configuring the port for
RS-422 and no Termination Resistor (select Disable).
7. Click OK to save the port settings, and then click OK in the Property window to finish the port settings
procedure.
Removing the Driver
1. Go to Device Manager. Use the mouse to place the cursor over the CP-104EL-A Series board under
Multi-port serial adapters, and then click the right mouse button. Select the Uninstall option.