VISORNET - Installation
I-18
Doc. DM245-I
Rev. 7.0
To connect the device power
source
To disconnect it
Extract the lead corresponding
to the power connector.
Disconnect the plugable lead from
the connector located on the rear
panel of the device.
Introduce the stripped cable
from the device in the lead
and screw down firmly. The
polarity must be correct or this
could cause irreparable
damages in the device that is
connected.
Unscrew and detach the lead cable.
Plug the lead into the
connector.
Plug the lead into the connector.
In cases of overload, there does exist a replaceable internal fuse (F1) with
quick 0,5 A value. .
I - 2.5. Connecting TV cameras
VisorNet 4c, being a multistandard system, accepts both NTSC camera standards
(525 lines per image, 60 images a second) and PAL camera standards (625 lines per
image, 50 images a second), automatically detecting the signal type that is sent from
the camera.
Cameras connected to the VisorNet 4c must be of one type only i.e. all PAL
or all NTSC.
Figure 1.11. Female BNC connectors for camera connection
In order to connect or disconnect a camera, connect or disconnect the male BNC cable
from the camera to the corresponding video input.
A row of four microswitches (SW2) located in the underside of the VisorNet 4c
permits the connection or disconnection of a 75Ω termination resistor in each of the
video inputs.
