Installation guide

PVN SerVision
HVG400 Installation Guide
Connecting Devices to the HVG400
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Figure 12: IA 3126-2 relay board
For information about connecting sensors and activators to the IA 3126-2 relay board, and about connecting the
relay board to a power source, please consult the relay-board’s documentation.
NOTE: If you are connecting less than 16 activators or 16 sensors to the relay board, be sure to connect them to
the relay beginning with the lowest connector, and do not leave open connectors between those that
you use. For example, if you are connecting 4 activators and 3 sensors, connect the activators to output
connectors 1-4 on the board and the sensors to input connectors 1-3 on the board.
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To connect the IA 3126-2 relay board to the HVG400:
1. Set the ID of the relay board to 0. (For information about how to do this, consult the relay-board
documentation.)
2. Connect the relay board to the RS232/485 connector on the rear panel of the HVG400 unit in one of the
following ways:
 If you are not connecting any RS485 PTZ controllers to the unit, using a 9-pin flat ribbon cable, connect
the RS232 connector of the relay board directly into the RS232/485 connector.
 If you are also connecting one or more RS485 PTZ controllers to the unit, using a 9-pin flat ribbon cable,
connect the RS232 connector of the relay board into the RS232 connector of the RS232/485 adapter
supplied with the unit. Connect the PTZ controllers to the adaptor as explained under Connecting PTZ
Controllers, page 9. Then plug the adaptor into the RS232/485 connector on the unit.