2-Port 422/485 Serial PCI Card
4
No echo data
(Default)
Transmission data will be echoed
4.
TXD Control Selector: JP3 (for S1) and JP6 (for S2):
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.
JP1 (for S1)
JP2(for S2)
Description
TXD Control is Automatic
(Default)
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!
OFF ON
ECHO
OFF ON
ECHO
485TR
MAN AUT
485TR
MAN AUT
