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172
(MT12 - Gb2004)
EXTERNAL DOOR STATIONS
VIDEO SIGNAL CONVERSION FROM COAXIAL CABLE TO BALANCED LINE
I
NTERCOMS
*
VIDEO INTERCOMS *
TELECOMMUNICA
TION
The Studio video intercom line allows for the realisation of video
intercom systems by simply using a twisted pair and the camera
MD41D. If the system includes colour cameras or models for CCTV, you
must use a video converter to transform the video signal from coaxial to
balanced. The board CV01 permits this type of conversion and can be
fixed on the back of cameras Mody or Matrix series, or near any CCTV
camera (in outdoor housings, connector blocks, etc).
CV 01.
Video signal converter from coaxial cable to balanced line (twisted
pairs).
Wires
V (white)
video signal input
M (green)
video ground
-F (black)
ground
+H (red)
12÷21Vdc power supply input (according to the position of
jumper J1)
Terminals
X
negative balanced video signal output
Y
positive balanced video signal output
SYSTEMS WITH MODY OR MATRIX CAMERAS
Installation
- Fix the CV01 board on the back of the housing of the camera with the
screw supplied (a).
- Make the connections as shown on the diagram.
- Check that the jumper J1 is in position 2-3 (power supply =21Vdc).
SYSTEMS WITH CCTV CAMERAS
Installation
- Place the CV01 board in the outdoor housing of the CCTV camera or
in any other housing.
- Make the connections as shown on the diagram.
Connection with 12Vdc CCTV camera
This type of connection allows for powering the board with the camera
power supply.
- Move the jumper J1 from position 2-3 to 1-2 (power supply=12Vdc).
Connection with 24Vac or 230Vac CCTV camera
This type of connection allows for powering the board in timed mode.
- Check that the jumper J1 is in position 2-3 (power supply=21Vdc).
To terminal
-
(or F) of the 1382 timer.
Mody
Matrix
Matrix
twisted
pair
BALANCED
VIDEO OUT-
PUT
to 1382 timer
to 1382 timer
Mody
BALANCED
VIDEO OUT-
PUT
VIDEO OUTPUT
CV01
POWER SUPPLY
POWER SUPPLY
230V
V
M
+H
-F
X
Y
APS
J1
1 2 3
White
Green
Red
Black
ADDITIONAL TERMINAL BOARD
CAMERA
BALANCED VIDEO OUTPUT
12Vdc
VIDEO OUTPUT
CV01
POWER SUPPLY
TIMER
V
M
+H
-F
X
Y
1382
J1
1 2 3
White
Green
Red
Black
ADDITIONAL TERMINAL BOARD
CAMERA
BALANCED VIDEO OUTPUT
24VAC
230VAC
H F