INSTALLING SOFTWARE DRIVERS
PCI-AC48 User’s Guide
6
For convenience, bias is often set at the adapter card (whether or not it is terminated and at the end
of the network). The DIP switch settings in this table are set with bias ON.
Installing Software Drivers
Software drivers for the PCI-AC48 adapter card are included on the Opto 22 PCI-AC48 Adapter Card
Toolkit CD that came with the card. If you do not have the CD, you can download the software from
our Web site at www.opto22.com. The easiest way to find the software is to enter “PCI-AC48” in the
Web site search engine, and then look for software related to that product.
1.
Insert the CD in your CD-ROM drive. It should start automatically; if it does not, open the file
setup.exe.
2.
Choose the PCI-AC48 option for installation.
3.
Run the installation, which automatically places the necessary PCI-AC48 files in the correct
locations for the operating system you are using.
PCI-AC48 location
on RS-485 network
RS-485
wiring mode
Set DIP switches as shown below.
S1
1
S2
S3
2-wire
4-wire
2
2-wire
4-wire
2
1)
DIP switch S1 configures port A; DIP switch S2 configures port B.
2
) Ports A and B must both be used for a single 4-wire connection. In 4-wire mode, port A is TX and port
B is RX.
At the End
or
the Only Card
123
456
OFF
OFF
OFF
OFF
ON
ON
ON
123
456
OFF
OFF
OFF
OFF
OFF
OFF
OFF
123
456
OFF
OFF
OFF
OFF
ON
ON
ON
123
456
OFF
OFF
OFF
OFF
ON
ON
ON
123
456
OFF
OFF
OFF
OFF
OFF
OFF
ON
In the Middle
123
456
OFF
OFF
OFF
OFF
OFF
ON
ON
123
456
OFF
OFF
OFF
OFF
OFF
OFF
OFF
123
456
OFF
OFF
OFF
OFF
OFF
ON
ON
123
456
OFF
OFF
OFF
OFF
OFF
ON
ON
123
4
56
OFF
OFF
OFF
OFF
OFF
OFF
ON
