May 26, 2011
7
3. You can connect a 3-Pin Internal USB Cable to the USB Connectors on the PC's
Motherboard.
(Allowed for DC Output Voltage only)
1
O
N
1
2
O
N
1
O
N
GV Video Capture Card
3-pin Internal
USB Cable
VCC
DM
DP
GND
(white)
(green)
(black)
RS-485+
RS-485-
Chaining together with
GV-NET/IO Card V3.1 /
GV-IO USB Box
Without
2-pin header
Connects to the USB Connectors on
the PC's motherboard
5
DM (D-)
DP (D+)
GND
(white)
(green)
(black)
Switching Modes
The GV-NET/IO Card provides two modes for users to expand its capability: I/O Box Mode
and NET/IO Card Mode. With a mode-switch jumper to insert on the 2-pin header, you can
switch between modes.
•
NET/IO Card Mode (default):
With the switch jumper inserted, this default mode acts as
a GV-NET/IO Card. It is required to connect the GV-NET/IO Card to the GV-Video
Capture Card for usage.
•
I/O Box Mode:
Without the switch jumper inserted, the GV-NET/IO Card can work as an
independent device. It is NOT necessary to connect to the GV-Video Capture Card for
usage.
Note:
It is required to install the USB driver. For details, see
Installing USB Driver
later in the
Installation Guide.
May 26, 2011
8
Extended Connections
Via the RS-485 connectors, up to 4 GV-NET/IO Cards can be chained together when the GV-
NET/IO Card is on the I/O Box mode. For extended connections, the address assignment is
shown below.
1
2
ON
1
2
ON
OFF/OFF
Address 1
1
2
ON
OFF/ON
Address 2
ON/OFF
1
2
ON
ON/ON
Address 3
Address 4
(default)
Address Assignment
Address Switch
1
ON
1
2
ON
1
ON
Note:
When the GV-NET/IO Card is set to the I/O Box Mode, it can have extended
connections with GV-I/O Boxes.
DIP Switch