Pelco C784M Welder User Manual


 
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:
LENS
DCVIDEO
ALC
LEVEL
CONNECT LENS
TO LDC100
CONNECT LDC100
TO CAMERA
ALC
LEVEL
LDC100
Auto Iris Drive Converter
C784M (4/00)
Figure 1
LDC100 Installation
Plug Side to Camera
Pin No.
1 Vcc (8V-16V)
2 N.C.
3 Sig. (VS or V)*
4 Gnd
Receptacle Side From Lens
Pin No.
1 Damp -
2 Damp +
3 Drive +
4 Drive -
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.
Table A
Wiring Connections
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.
®
*VS=Composite video signal
V=Video signal