LDC100
Auto Iris Drive Converter
C784M (4/00)
®
DESCRIPTION
The LDC100 converts a DC drive auto iris lens to a video drive auto iris lens. The LDC100 has
a built-in amplifier that increases the video signal to automatically operate the open/close
commands of the lens.
INSTALLATION
To install the LDC100 refer to Figure 1 and do the following:
1. Connect the LDC100 to the lens connec-
tor on the camera.
2. Connect the video drive lens to the con-
nector on the LDC100.
3. If the iris mode selector on the camera is
set to DC, switch the selector to VIDEO.
4. Use a screwdriver and adjust the ALC and
LEVEL settings for the best picture.
ALC–Allows a variable selection of light me-
tering between average and peak levels.
Level–Adjusts the brightness of the im-
age projected on the monitor.
CONNECT LDC100
TO CAMERA
Figure 1
LDC100 Installation
LENS
VIDEO DC
LEVEL
ALC
CONNECT LENS
TO LDC100
A L C
L E V E L
Table A
Plug Side to Camera
Wiring Connections
Pin No.
1
2
3
4
Vcc (8V-16V)
N.C.
Sig. (VS or V)*
Gnd
Receptacle Side From Lens
Pin No.
1
2
3
4
Damp -
Damp +
Drive +
Drive -
* VS=Composite video signal
V=Video signal
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