Videx 4901 - Privacy Duration Settings; Address and Bus Termination Settings; Intercommunication and Extension Settings

66550033-EN - V6.1 - 15/08/20
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ESVK/6388 Series “2 wire Bus” videokit
ESVK/6388 Series - Installation handbook
Art.6388 3.5" hands free colour display digital videophone
PRIVACY DURATION
• Keep pressed the
button until the two LEDs and are switched on.
• Press the button for the number of times corresponding to the required privacy duration to set. Each time the button is
pressed, the duration is increased by 15 minutes: i.e. to set 2 hours, press the button 8 times.
Default: innite. Max value: 20 hours. To program innite privacy time don’t press any buttons.
• Once the required privacy time is reached, wait approx 5 seconds for the two LED’s to switch o. The new duration is set.
VIDEOPHONE ADDRESS  SW1.1..7
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 rele-
vant decimal weight you obtain the address that is 37.
SWITCHES STATUS BINARY CODE  DECIMAL WEIGHT ADDRESS
7 6 5 4 3 2 1 64 32 16 8 4 2 1
OFF OFF OFF OFF OFF OFF ON 0 0 0 0 0 0 1 1
OFF OFF OFF OFF OFF ON OFF 0 0 0 0 0 1 0 2
OFF OFF OFF OFF OFF ON ON 0 0 0 0 0 1 1 3
OFF OFF OFF OFF ON OFF OFF 0 0 0 0 1 0 0 4
OFF ON OFF OFF ON OFF ON 0 1 0 0 1 0 1 37
ON ON ON ON ON ON ON 1 1 1 1 1 1 1 127
Note: The maximum number of units allowed is 100 but the address of each unit can be a value between 1 and 127.
VIDEOPHONE END OF LINE TERMIANTION S3
Looking at the videophone from the rear:
C NO -DOL +DOL GND A LB
S3
Move the switch S3 to the lower position
to disable the bus termination.
C NO -DOL +DOL GND A LB
S3
Move the switch S31 to the upper posi-
tion to enable the bus termination.
In case of more units (intercoms, videophones or video monitors) in a parallel connection (bus wires are connected to the terminals
of the rst unit then from this to the second and so on up to 4 units max) the BUS termination must be enabled only for the last unit
in the chain while on all other units it must be set to disabled.
INTERCOMMUNICATION MODE  SW2.1
This switch establishes the intercommunication mode: in OFF position (default) intercommunication is between units in
the same apartment (same addresses but dierent extension); in ON position the intercommunication is between units
in dierent apartments (dierent addresses).
On installations where there are more than one intercom/videophone in the same apartment and intercommuni-
cation between dierent apartments is required, only one intercom/videophone may be set with this function (SW2.1=ON,
SW2.2=OFF, SW2.3=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  SW2.2..3
If the intercommunication between apartments is enabled (switch 1 of SW2 = ON)
leave these two switches in default position (both to OFF). Otherwise, if the in-
tercommunication is between the same apartment (switch 1 of SW2 = OFF), set
the extension addresses starting always from 1. During the external call, all video
monitors in the same at will ring but the video will be shown only from the vide-
ophone with extension address 1.
ON
1 2 3 4 5 6 7 8
SW1.1..7
ON
1 2 3 4
SW2.1
ON
1 2 3 4
SW2.2..3
2 3 EXTENSION NO.
OFF OFF 1 (default, master)
ON OFF 2 (slave)
OFF ON 3 (slave)
ON ON 4 (slave)