RS-422/485 Multiport Serial PCI Card
5
S1 and S2 have its own setting. You need to go to each
port to turn on both settings.
3.1.3 S1,S2 Connector Pin Assignments
3.1.4 S1,S2
Terminator
Settings
S1 Terminator Settings (JP7):
Jumper Name
Jumper Settings
Termination Resistor Setting
IN
TXD Terminator Enabled
JP7 (TXD)
OUT
(Default)
TXD Terminator Disabled
IN
(Default)
RXD Terminator Enabled
JP7 (RXD)
OUT RXD
Terminator
Disabled
IN
RTS Terminator Enabled
JP7 (RTS)
OUT
(Default)
RTS Terminator Disabled
IN
(Default)
CTS Terminator Enabled
JP7 (CTS)
OUT
CTS Terminator Disabled
Note: IN :
Jumper Installed
1 5
6 9
9 Pins
Signal
1 TXD- (DATA-)
2 TXD+ (DATA+)
3
RXD+
4 RXD-
5 GND
6 RTS-
7 RTS+
8 CTS+
9 CTS-
TXD Terminator
RXD Terminator
RTS Terminator
CTS Terminator
RS-422/485 Multiport Serial PCI Card
14
6.2 Windows
98,
ME
In this examples, if the first port is COM5 and the second
port is COM6, go to the COM5’s “
properties”
and select
“RS485 Buf En Active high”
for the DTR function
Repeat the mentioned procedures to set the other port
(e.g. COM6)
Select
〝
RS485 Buf_En Active high
〞
for
DTR function
