Video Output Signal Type (Sw2 5); Power Source; Fitting The Dome To The Mounting Plate; Demounting The Dome - Videotec MDI Manuel D'instructions

7.2.3 Video output signal type (SW2 5)

Switch 5 determines the format of the video output signal. The factory default is ON for an unbalanced signal for
use with the supplied pig-tail cable and traditional coaxial cable. Set SW2 – 5 to OFF when using CAT-5 cable
and UTP receivers.

7.2.4 Power source

When connecting the dome to CAT-5 cable and the cable length is over 200 metres, it is strongly recommended
to supply power to the dome from a local power source rather than over the CAT-5 cable. Set switches 7 & 8 to
OFF to isolate the dome from the power conductors in the CAT-5 cable. Power can then be supplied to the
dome from a local AC or DC power source of the correct voltage via the pig-tail cable which must be connected
to the second RJ-45 connector in the base of the dome that is labelled "CHAIN".
The factory default position for switches 7 & 8 is ON meaning the dome should be supplied with power via the
RJ-45 connector labelled "CONTROLLER" using either the pigtail cable or CAT-5 cable.

8 Fitting the dome to the mounting plate

When all switches have been correctly set, the safety lanyard of the dome can be attached to the installed
mounting plate. Always attach the safety lanyard to the mounting plate so as to prevent damaged or possible
injury if the dome is accidentally dropped.
Connect the prepared fixed cabling of the installation that is terminated with an RJ-45 jack to the dome
connector labelled "CONTROLLER". This assumes that one of the two methods described previously has been
correctly followed and implemented.
Do not apply power to the dome at this time!
Carefully push any excess cabling back into the ceiling cavity and align the three claws of the mounting plate
with the hole in the base-plate of the dome. With two hands, apply even upward pressure to the base of the
dome until it snaps onto the mounting plate. Take care to press only on the outer edges of the base, avoiding
any contact with dome cover. Ensure the three claws have positively engaged.
Check that the camera cabling and the safety lanyard are not caught between the body of the dome and the
mounting plate.
The dome has a peak in the base that indicates the midpoint in the pan travel. The dome can pan 90° in either
direction from this peak. Position the dome so that the peak points at the centre of the surveillance scene. Once
the dome is correctly attached to the mounting plate, it is possible to rotate the base of the dome relative to the
mounting plate. Grasp the base with two hands and applying firm pressure in the required direction of rotation.
Power should now be applied to the camera.
The camera performs an automatic start-up routine, panning and tilting to calibrate its travel limits. No attempt
should be made to control the dome at this time.

8.1 Demounting the dome

Particular care should be taken when de-mounting the dome from its mounting plate so as not to
damage either the dome or its associated cabling.
Do not attempt to remove the dome cover without first removing the dome from its mounting plate
Place one hand under the dome so as to be ready to support it. Carefully insert a suitably sized flat-blade
screwdriver into the gap between base of the dome and the mounting plate to a depth of not more than 15mm
and firmlly lever downwards until the dome detaches from the mounting plate. The dome will remain attached to
the mounting plate by the safety lanyard. Disconnect the dome from the site cabling by removing the RJ-45 plug
from the connector. To completely detach the dome, the safety lanyard must now be unfastened from the
mounting plate. Take extreme care not to drop the dome once the safety lanyard has been released.
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