Bellcome Door intercom DIN rail power supply unit SCU.VDN.BLW SCU.VDN.BLW Information Guide
Product codes
SCU.VDN.BLW
5.3 Connection of Security Cameras (optional)
EN
If in an system you want to install only one external Security Camera, you can connect it
to the Supply Control Unit (SCU.VDN.BLW)
Example for connecting ONE external Security Camera to the SUPPLY CONTROL UNIT (SCU.VDN.BLW)
BROWN
GREEN
BLUE
ORANGE
Security Camera
V/(+)
BLUE
SCU.VDN.xxy
Supply control unit
JP 1
BROWN
UTP
cable
CAT
5e
Not connected -
with exterior camera
Jumper
ORANGE
G/(-)
GREEN
GNV 2
Vin 2
Ucam
GND
BUT
LC
LA/C
LA
AUX 2
AUX 1
Core Cable (for power)
If in a system you want to install more than one Security Camera, you need to connect it to
the Video Selection Box (VSB.4DN.BLW)
Coaxial Cable
(video signal)
BNC
connectors
Video Balun (passive)
RCA
connectors
Braid (GND)
Central Conductor
(+12V)
/
6
/
6
1
Panel
Supply control unit
To the terminal
balun
/
4
Block diagram of the connection of supply control unit
Maximum output current from the Supply Control
Unit to power a video camera is of 0,4 A
ON
OFF
ON
OFF
ON
OFF
/
4
/
6
/
6
No.
1
2
3
/
4
/
6
Video selection box (VSB)
without VSB
with VSB
/
4
4
/
4
Position of the switches
with VSB
with VSB
1 x
2 x
3 x
4 x
Panel
Supply control unit
To the
terminal
balun
balun
balun
balun
Block diagram of the connection of video selection box
Video
selection box
For other configurations contact the manufacturer.