Optional Accessories - Marmitek DOORGUARD 100 Guide Utilisateur

Connecting of more monitors
you can connect as much as 4 monitors (obtainable separately: art.nr. 09692 (E-version)
09693 (UK version). Mutually the monitors work as an intercom as well.
N.B.: only the last monitor you connect must be switched on 75 Ohm.
The following monitors should be connected parallel to the wall plate.
So you connect R1, R2 , R3 and R4 with R1, R2, R3 and R4 of the second monitor (see
2
drawing figure 4). Till a cable length of 25 metres a 4-wire cable of minimal 4 x 0.55 mm
can be used. For a cable, long 25 – 50 metres must be used a 75 Ohm coax cable of minimal
2
0.5 mm (R1 and R2) for the video signal.
2
When using a cable length of 50 till 100 metres use a 75 Ohm coax cable of minimal 1.0 mm
2
When using a cable length of 100 till 300 meters use a 75 Ohm coax cable of minimal 1.5 mm .
For the audio signal is no coax cable needed and will a 2 wire cable do (R3 and R4)

7. Optional accessories

Separate Marmitek DoorGuard100 monitor
DGM100 art. no 09692 (E version) 09693 (UK version)
8. FAQ
I don't get a picture.
Check whether the power cable has been plugged into the wall socket properly.
Check whether the contrast is set to max or min and then turn the wheel on the side of
the monitor for a better picture.
Check whether the receiver is placed on the monitor correctly.
Check whether all cables are connected properly (see the connection diagram for step 2).
I don't get any sound.
Check whether the wire of the receiver is clicked into the monitor correctly. Remove the
wire and click it in again to make sure.
Check whether all cables are connected properly (see the connection diagram for step 2).
The picture is very fuzzy (white noise).
Check whether the system is suffering from interference, e.g. from power lines,
electrical equipment).
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