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Kristallo Series
Art. KRV782
Hands free videomonitor
MELODY TYPE
1. Press and keep pressed
emits a "beep";
2. Press and keep pressed
the next melody. Proceed in the same manner to select the melody;
3. When desired melody is selected, wait for some seconds and the
4. The unit returns to stand-by mode.
VIDEOPHONE ADDRESS – SW7..1.1
The table below shows how to set the address of the videophone. Considering that ON = 1 and OFF = 0,
multiply each digit for the relevant decimal weight then sum values obtained to get the address: E.g. as
highlighted in the table OFF, ON, OFF, OFF, ON, OFF, ON in binary is equal to 0100101 then multiplying each
digit for the relevant decimal weight you obtain the address that is 37.
SWITCHES STATUS
7
6
5
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
Note
The maximum number of units allowed is 100 but the address of each unit can be a value between 1 and 99.
BUS LINE TERMINATION - DEV1
The factory pre-set is termination enabled. In case of more units
(intercoms, videophones or video monitors) in a parallel con-
nection (bus wires are connected to the terminals of the first
unit then from this to the second and so on up to 4 units max)
Termination must be enabled only for the last unit in the chain
while on all other units must be disabled. This rule applies even
if the devices in the apartment are of a different type (Telephone
videophone video monitor etc).
INTERCOMMUNICATION MODE – SW3.1
This switch establishes the intercommunication mode: in OFF position (default) intercommunication is between units in
the same apartment (same addresses but different extension); in ON position the intercommunication is between units
in different apartments (different addresses).
On installations where there are more than one intercom/videophone in the same apartment and intercommunication be-
tween different apartments is required, only one intercom/videophone may be set with this function (SW3.1=ON, SW3.2=OFF,
SW3.3=OFF). The other intercom/videophones in the apartment must be set for local intercommunication with extension addresses "2-
4" (slaves). From the intercom/videophone set for intercommunication with other apartments it will not be possible to intercommunicate
within the apartment but slave extensions 2-4 will be able to intercommunicate with each other within the apartment.
EXTENSION NO – SW3.2..3
If the intercommunication between apartments is enabled (switch 1 of SW3 = ON)
leave these two switches in default position (both to OFF). Otherwise, if the inter-
communication is between the same apartment (switch 1 of SW3 = OFF), set the
extension addresses starting from 1. During the external call, all video monitors in
the same flat will ring but the video will be shown only from the videophone with
extension address 1.
SLAVE MODE - SW3.4
This set up concerns the answering mode of the video monitor when there is more than one unit (max 4) in the same
apartment. OFF (default) = during a call, only the video monitor with extension 1 (master) will show the video. ON =
the video monitor will be switched on independently of the extension address: in this case the video monitor must be
supplied locally using a power supply Art. 2321 with connections BUS+ to terminal +VAUX and BUS– to terminal GND
on the connection terminals (the local power supply is required for each black & white slave videophone or starting from
the third slave videophone when they are all colour videophones).
This switch should also be set to ON on the master videophone when this mode is used.
Art. KRV782 - Installation instructions
button for 5 seconds to enter melody type programming mode: the "
button to play the current melody. Release
4
3
2
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
LED will turn off;
BINARY CODE - DECIMAL WEIGHT
1
64
32
16
0
0
0
0
ON
0
0
0
0
ON
0
1
ON
1
1
Termination enabled
(factory pre-set).
- 3 -
button then press and keep it pressed again to play
8
4
2
AL
0
0
0
0
LB
0
0
0
1
0
0
0
1
LB_AL
0
0
1
0
DOL
C
0
0
1
0
NO
0
0
0
1
+30Vaux
GND
+12Vaux
GND
BUS
BUS
TERMINATION
ON
2
OFF
1
2 3
4
ON
SW3.2..3
OFF
ON
LED turns on and the unit
ON
1 2 3 4 5 6 7
7..SW1.1
ADDRESS
1
AL
1
1
LB
0
2
1
3
LB_AL
0
4
DOL
C
1
37
NO
1
99
+30Vaux
GND
+12Vaux
GND
BUS
BUS
TERMINATION
Termination disabled.
ON
1
2 3 4
SW3.1
3
EXTENSION NO.
OFF 1 (default, master)
OFF 2 (slave)
ON 3 (slave)
ON 4 (slave)
ON
1 2 3
4
SW3.4
66251220 - V4.4 - 15/03/22
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