Frequently Asked Questions - Marmitek DOORGUARD 470 Guide Utilisateur

7 FREQUENTLY ASKED QUESTIONS

Can I set the speaker volume of the doorbell?
On the back of the doorbell, there is a small volume control located
behind the rubber sealing cap. Using a small screwdriver, you can gently
fine-tune the volume.
What is the recommended height for mounting the doorbell?
The recommended height is 1.60 metres. Also, pay attention to incident
light from the sun, streetlights and the like.
Can I connect multiple monitors in parallel?
No, a second monitor is connected to the first monitor. A third monitor is
then connected to the second monitor and a fourth monitor to the third
monitor. Next, go to the settings menu of each monitor to set it as either a
Master or a Slave monitor. The first monitor is always a Master; the other
three monitors are Slaves. (Please refer to 4.4.4 Camera menu.)
If I want to install a door opener, can I operate it from each monitor?
Yes, you can operate the door opener from each monitor.
Can I set the monitor's call tone?
You can choose from 16 different call tones, set the duration and adjust
the volume for three time spans. You can set this individually for each
Call tone menu
monitor. (Please refer to 4.4.1 .)
I hear a clearly audible humming noise during the conversation.
A humming noise can be caused by interference with other types of
installations. High AC voltage cables next to intercom cables will almost
certain result in a humming noise in the door intercom. If it is unavoidable
that the intercom cable runs along 230V cables, please ensure that
shielded cables are used. (Please refer to 3.1 Required cable type.)
What is the function of the three extra wires on the doorbell cable?
The blue and brown wires are the switching wires for the door opener.
The red/white wire supplies 12 volts when the camera is active. It can be
used, for example, to control an external DVR.
Do you still have questions?
Please check out www.marmitek.com for more information.
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