SerVision HVG400 Bedienungsanleitung PDF herunterladen (Seite 8)

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Figure 3: Wire connector

2. If multiple PTZ cameras are connected to the unit, each camera

must have a different bus-ID and they must all support the same protocol

(i.e. Pelco-D). For information about how to do this, refer to the camera

documentation.

3. Connect the RS232/485 adapter to the RS232/485 serial port

connector on the rear panel of the unit.

Sequential Connections

Cameras that use the RS 485 connection type can be connected to one another to

create a sequential connection. In the sequence, one of the cameras is

connected to the COM port, and additional cameras are connected to it by

connecting on to the other in a series. Up to 256 cameras can be connected to a

single SVG unit in this way.

Note: Only cameras that use the same control protocol can be connected

together sequentially. For example, two RS 485 cameras that use the

Pelco-D protocol can be connected sequentially, but if one uses the Pelco-

D protocol while the other uses the Pelco-P protocol, they cannot be

connected sequentially.

BusIDs

When cameras are connected sequentially, each camera in the sequence must

have a unique BusID. For example, if there are three cameras in a sequence,

they would be given the BusIDs “0”, "1" and “2”.

BusIDs are set using dip-switches on the camera. Please consult the camera

vendor’s instructions for information about how to do this on the camera model

you are using.

Connecting the Cameras in the Sequence

To connect a number of RS 485 cameras sequentially, use flat ribbon cable as

follows:

Connect the first camera to the SVG as described above.

Connect the next camera to the first camera such that connector pin 1 on the

first camera is connected to connector pin 1 on the second camera, and

connector pin 3 on the first camera is connected to connector pin 3 on the

second camera (see Figure 2).

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SerVision HVG400 Bedienungsanleitung Seite 8