NV-DVR1004 / NV-DVR1004NET ver. 1.0 - User’s manual
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SPEED DOME CAMERA - CONNECTION AND CONTROL
9. SPEED DOME CAMERA - CONNECTION AND CONTROL
Digital Multiplexer NV-DVR1004NET allow to control up to 4 speed dome cameras.
For camera control port RS-485 is used. Control lines are connected in a “daisy chain” way. Camera
control is operated by buttons placed on front panel or by utilizing net software. For proper operation
each speed dome camera must have individual system address. Following rule should be applied:
camera with address 1 is connected to video input nr 1, camera with address 2 connected to channel 2
and so on.
Control is done by Pelco-D protocol.
Warning: All cameras in the system should have identical protocol and transmission speed
9600BPS (please view Speed Dome Camera Manuals).
Camera connection description applies to Novus camera connections. In order to connect cameras of
other producers technical department should be contacted and user should familiarize himself with
specific camera manual.
9.1 Novus Speed Dome Camera Connection
Speed Dome Camera control lines are connected in a “daisy chain” way with the use of twisted pair
cable (UTP 5th class). The maximum length of line can not exceed 1200m.
The telemetry control signals are lead to junction with the symbol
RS-485
. .
T+
Should be connected with Rx + / Tx+ in the camera
T -
Should be connected with Rx - / Tx- in the camera
T+ T- R- R+
