Bus Line Termination - Videx Kristallo Series User Manual

Kristallo Series
Art. KRV82-KRV84
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 intercommu-
nication between 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 intercom-
munication 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 inter-
communicate 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 intercommunication 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 vid-
eo will be shown only on the videophone with extension address 1.
SLAVE MODE - SW3.4
This setting configures the slave video monitor to be on during calling when there are more than one videophone in
the apartment (max 4).
The default is OFF, only the master videophone will show the picture during calling. The picture will only appear on the
slaves if it is answered.
ON, all video monitors will show the video during calling. For this more it is necessary to add a local Art. 323/12 PSU for
the third & forth video monitor (across terminals).
This switch should also be set to ON on the master videophone when this mode is used.

BUS LINE TERMINATION

The factory pre-set is termination enabled.
In case of more units (intercoms, videophones or video mon-
itors) in a parallel connection (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 it must be disabled.
This rule applies even if the devices in the apartment are of a
different type (Telephone videophone video monitor etc).
Art. KRV82 - KRV84 - Installation instructions
3.5" Hands free videomonitor
ON
1 2 3
SW3.2..3
Termination enabled
(factory pre-set).
- 5 -
2 3 EXTENSION NO.
OFF OFF 1 (default, master)
4
ON OFF 2 (slave)
OFF ON 3 (slave)
ON ON 4 (slave)
Termination disabled.
66251990 - V1.1 - 15/07/21
ON
1 2 3 4
SW3.1
ON
1 2 3 4
SW3.4