Marmitek VIDEO DOORPHONE Frequently Asked Questions, Technical Data, Do you still have questions?

Cable length	Required cable type
1-25m	4 core cable of minimum 4x 0,55mm2
25-50m	coax cable, 75 ohm of minimum 0,5mm2 + 2 wire audio 0,35mm2
50-100m	coax cable, 75 ohm of minimum 1.0mm2	+ 2 wire audio 0,35mm2
100-300m	coax cable, 75 ohm of minimum 1.5mm2	+ 2 wire audio 0,5mm2

c. Marmitek Camera corner bracket mounting

To be able to mount your DoorGuard400 camera in the corner of the door frame. Art.no: 09746

ENGLISH

7. FREQUENTLY ASKED QUESTIONS

There is no image

Check if the power cable is properly connected to the power socket.

Check the position of the button for minimum and maximum contrast, and turn the wheel on the side to select the best image.

Check if the connectors are properly fixed

There is no sound

Check if the connectors are properly fixed

The image is hazy (clouds)

Check if there are interferences in the surrounding area. For example a high voltage cable, electric appliances etc.

Check if the 75 Ohm switch is in the right position; ‘Off’ in case only one monitor is used, and only in case multiple monitors are used, the switch of the last monitor should be on ‘On’.

Do you still have questions?

Please check out www.marmitek.com for more information.

8. TECHNICAL DATA

Monitor
Resolution:	420 picture lines
Power supply:	100-240V AC
Screen:	14 cm colour LCD
Bell sound:	Ding-dong (adjustable volume)
Power consumption:	Max 15 Watt
Door open switch:	Max DC24V/1A or AC24V/1A.
Dimensions:	195x260x40mm
Camera
Resolution:	352x288 Pixels
Camera:	CMOS
Lens en angle:	F3.6 mm 78°
Light sensitivity:	0,1 LUX
Night vision:	4 bright LEDs
Sound:	Built-in microphone en loudspeaker
Material:	Impact-resistant casing
Dimensions:	58,5x134,5x40mm

DOORGUARD400TM 7