User manual
12
English Seriell RS-422/485 PCIe Board
4. Hardware Installation
• Turn the system power OFF before installation!
• Use static electricity discharge precautions.
• Remove the chassis cover from your computer
• Locate an unused PCI-Express slot (typically white or ivory) and remove the
corresponding slot cover from computer chassis.
• Plug the RS422/485 PCIe card to the unused PCI-Express expansion slot and
attached the I/O card bracket to the computer chassis screw.
• Put the chassis cover back on the computer.
• Turn ON the power of your computer and peripherals.
• Proceed with Software Driver Installation.
4. TXD Control Setting:
This jumper is used to select the control signal for the transmitter buffer in RS485 2-
wire mode. There are 2 settings are selectable, one is “MAN” (manually) the other
one is “AUT” (automatically, factor default), please keep it at “AUT” in all cases.
MAN AUT
AUT = TXD Control is Automatic (Default)
ON = TXD Control is Manual
(Needs to be Configured Manually in the Device Manager)
5. Factory Use Only Connectors (J1):
This connector is only used for factory production purpose, please don’t install any
jumper or cable on it!
JP2 for S1 Port
JP3 for S2 Port










