8
6X-1048B
2740 CAMERA
INSTALLATION AND OPERATION
Figure 4. Dimensions, Model 2740 Camera
2.7 Mounting Requirements
The dimensions shown in figure 4 illustrate
characteristics of the camera related to securing it
to a pan-and-tilt unit, pedestal base, arm, or
similar mounting platform.
The five 1/4-20 holes on the bottom of the
camera mounting base are threaded through 1/4-
inch thick aluminum plate.
The bolts used to hold the camera to a
mounting platform should extend at least 1/16 inch
beyond the 1/4-inch camera base plate so that a
full thread is exposed. Bolts extending more than
3/8 inch beyond the camera base plate could jam
against the barrel housing of the camera. This
should not be allowed to happen.
2.8 Line Lock Operation
The line lock version of this Camera relies on
a sync reference derived from the ac power line in
place of an internal crystal oscillator as the refer-
ence source.
With equipment operating from different
phases of the power line, or perhaps off a different
transformer or other source, a typical step-phase
change in 60 degree increments makes it possible
to match with the vertical interval of other cameras
or equipment in the system.
2.9 Installation Procedure
Installing the Camera is straightforward. If it is
known that the internal camera module control
functions are properly set, it is only necessary to
mount the Camera to a suitable base, mate the
rear panel connector, and apply power. This
assumes the other end of the cable is properly
connected to a source of power, a tv monitor, and
any other required equipment.
See figure 5 for the wiring diagram of a typical
cable to use with the Camera. Not all of the
connections shown may be required. As a mini-
mum, this cable must provide power to the cam-
era and video to a tv monitor (unless the optional
fiber optic video output option has been installed).
Additional connections are required when either a
zoom lens or the ID generator option is installed.
