![MRC 12M-i User Manual Download Page 4](http://html1.mh-extra.com/html/mrc/12m-i/12m-i_user-manual_1845463004.webp)
6. Filter box installation
For a permanent installation, the filter box should be screwed onto the panel board by means of the
feed through
camera connector
(see figure 2). Figure 3 illustrates the recommended configuration:
•
A 12 mm through hole in the panel board is required.
•
The
camera connector
is guided through this hole.
•
The camera connector provides the ground connection to the shielding of the MR cabinet.
For temporary use, the camera cable can be brought into the MR cabinet by other means, e.g.
through a service entry hole (“waveguide”). In this case, an additional grounding cable should be
used to connect the camera connector to the shield panel grounding. The camera connector must
completely protrude into the MR cabinet and the video cable must not jut out.
Figure 3: Device and cable configuration
7. Connection of power supply, light intensity adjustment
The power for the camera is transmitted via the video cable. Therefore, the power supply is
connected to the filter box (see figure 4). Next to the video connector is a green “active” signal
which shines when the device is powered and the LED on the front side of the camera is turned on.
By pushing the button of the “active” signal the LED can be switched off. The intensity of the LED
light can be adjusted by means of a potentiometer at the filter box.
7.1. Eye safety
The infrared LED in the camera is eye-safe. The peak wavelength is 950 nm. We recommend to keep
a distance between the light source and the subject's eye of 50 mm or more. With the white-light
LED you should avoid to shine directly in the eye. Please be aware that the lid-closing reflex of
babies can be unincisive.
MRC Systems GmbH
version 3 - May 22, 2015
page 4 of 8