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RS-485 Device Connections
To connect the GV-NET Card to the RS-485 devices, there are three ways of connections.
See the pictures below.
1.
You can connect a RJ-11 to DB9 Cable to the PC's COM Port when a RS-485 device
is connected.
Connects to PC's COM Port
RJ-11 to DB9 Cable
2
PTZ Dome
RS-485+
RS-485-
ON
Figure 2-7
2. You can connect a RJ-11 to USB Cable to the PC's USB Port when a RS-485 device
is connected.
RJ-11 to USB Cable
3
RS-485+
RS-485-
ON
PTZ Dome
Connects to PC's USB Port
Figure 2-8
Note:
It is required to install the USB driver. For details, see
2.22 Installing USB Driver.