GeoVision GV-IO Installation Manual page 3

Long-Distance Connection
The supplied Terminal Resistor must be used when the connection distance is greater
than 200 meters.
When one GV-I/O USB Box is connected to another GV-I/O USB Box or more, only
insert the Terminal Resistors in the RS-485 connectors of the first and the last connected
GV-I/O USB Boxes.
RS-485-
Terminal Resistor
RS-485+
GV-I/O USB Box
~
(the first)
When one GV-I/O USB Box is connected to one GV-NET/IO Card, only insert the
Terminal Resistor in the GV-I/O USB Box.
RS-485-
Terminal Resistor
RS-485+
GV-I/O USB Box
DIP Switch
The GV-I/O USB Box allows the use of mixing dry and wet contact devices together.
The 16 inputs divided as four-in-one groups (A, B, C and D) are related to the 4
switches on the box for dry and wet contact.
To change the inputs to different kind of contact, push the switch upward (wet contact)
.
or downward (dry contact)
1 2 3 4
ON
E CE
A B C D
Wet Contact
RS-485-
RS-485+
GV-I/O USB Box
(the last)
RS-485-
RS-485+
GV-NET/IO Card
1 2 3 4
ON
E CE
A B C D
Dry Contact (Default)
USB Driver Installation
To use the USB function, it is required to install the driver on the PC. Follow these steps
to install the driver:
(1) Insert the software CD. It will run automatically and pop up a window.
(2) Select Install or Remove GeoVision GV-Series Driver, and then click Install
GeoVision USB Devices Driver. This dialog box appears.
(3) Click Install to install the drivers. When the installation is complete, this message will
appear: Install done!
(4) Click Exit to close the dialog box.
(5) To verify the drivers are installed correctly, go to Device Manager. Expanding the
Ports field, you should see one entry for Prolific USB-to-Serial Bridge.
2008.5.28