66251320-EN - V1.5 - 31/10/16
3
6400 Series
Art. 6478 - Installation instructions
Art. 6478
4.3" hands free colour display videophone
NUMBERS OF RINGS
1. Press and keep pressed “ “ button for 10 seconds to enter numbers of rings programming mode: the “ “ LED turns on and the
unit emits a “beep“;
2. Press “ “ button as many rings as required: the unit emits a “beep“ every time the button is pressed.
I.E.
: press 3 times for 3 rings.
Default value: 6 rings. Max value: 9 rings;
3. Wait for some seconds: the “ “ LED turns off and the unit emits a “beep“ that confirms the new setting is properly stored;
4. The unit returns to stand-by mode.
VIDEO MODE SW2
The video mode setup is carried out by the 4 way Dip-Switch accessible from the rear side of the videophone.
Switches 3 and 4 adjust the video signal impedance. When using more than one videomonitor in parallel (without a video
splitter) put both switches in the OFF position on all but the last videomonitor (end of line).
VIDEO MODE
Switches 1,2
Mode
Coax
Balanced
75 OHM VIDEO TERMINATION
Switches 3,4
Termination
Enabled
Disabled
VIDEOMONITOR/INTERCOM ADDRESS, VIDEO MODE AND TERMINATION SETUP DSW1
Each intercom is addressed in binary (PHONE ID) using the 8 way dipswitches located on the rear of the unit. Each switch corre-
sponds to one bit which can have a value 0 (OFF) or 1 (ON). Each bit corresponds to a decimal weight depending on the position:
Switch 1 = decimal 1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128.
I.E.
to set the address 37, put switches 1, 3 and 6 on (1+4+32=37).
SWITCHES
DECIMAL WEIGHT
ADDRESS
8
7
6
5
4
3
2
1
128
64
32
16
8
4
2
1
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
0
0
0
0
0
0
0
1
1
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
0
0
0
0
0
0
1
0
2
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
0
0
0
0
0
0
1
1
3
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
0
0
0
0
0
1
0
0
4
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
0
0
1
0
0
1
0
1
37
ON
OFF
ON
ON
OFF
ON
OFF
OFF
1
0
1
1
0
1
0
0
180
CABLING 6478 USING CAT.5 CABLE*
Connections:
• One pair must be used to double up the BUS line
“L”
;
• One pair must be used to double up the power supply ground. The bus ground
must be connected with power supply ground (
“GNDV”
&
“–”
);
• One pair must be used to double up the positive power 20V;
• One pair must be used for the video signals “
V1”
and “
V/V2”
;
• A link is required between “12Vo” & “12Vi”;
• An additional PSU Art. 893N1 is required every 50 videomonitors installed in the system.
Max Distance**:
70 metres.
System type:
Audio/video door entry systems.
* When this cable is used, in case more videophones are connected in parallel in the same apartment, a local power supply for additional videophones is required.
** By max distance we mean the maximum distance between the door panel and the furthest videophone/intercom
