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Kristallo Series
Art. KRV782
Hands free videomonitor
NOTE: WHEN USING CST2310 CONCIERGE
To enable calling to the concierge and receiving
calls from the concierge; on the master device (SW3
Dip 2&3 OFF), set dip switch 1 of SW2 to OFF and
also dip switch 4 of SW3 to ON. Intercommunication
is between devices in the same apartment.
CONNECTION TERMINAL SIGNALS
AL
Alarm input (not implemented yet)
LB
Local bell input (active low)
Ground output for use in combination with AL & LB
LB_AL
active low inputs
Auxiliary LED power supply input (+12Vdc – nor-
DOL
mally used as "DOOR OPEN" LED)
Dry contacts relay common contact
(during a conversation, keep pressed
the
button for more than 3 sec-
C
onds to enable the internal link be-
tween terminals C and NO – the link
remains until the button is released).
Dry contacts relay normally open
contact (during a conversation, keep
pressed the
NO
3 seconds to enable the internal link
between terminals C and NO – the link
remains until the button is released).
Auxiliary 30Vdc power supply input (to be used
when the switch 4 of SW3 is set to ON when more
+30Vaux
videophones have the same address and must be
switched ON at the same time).
GND
30Vdc power supply ground
Auxiliary 12Vdc power supply input for memory
+12Vaux
board version (not implemented yet)
GND
12Vdc power supply ground
BUS
Bus input terminal
BUS
Bus input terminal
Art. KRV782 - Installation instructions
50Vdc @
100mA
button for more than
TECHNICAL SPECIFICATIONS
Housing and mounting: Kristallo Series
SW3
ON
Push buttons:
1
2
3
4
Programming:
Controls:
Power consumption:
Working voltage:
RESTORING FACTORY PRESET
To restore factory preset, proceed as follows:
• Cut off power supply;
• Make a short between LB and GND terminals;
• Restore power supply and wait until LED
Max
fore removing the short.
The unit parameters are restored to factory preset.
MEMORY BOARD
This device is also available in the version with
memory board (Art. KRV782/VM).
If you have that version, please refer to the
"Kristallo Series 7" Memory Board" user
manual for installation and use.
The manual is available for download:
click/tap or scan the QR code.
- 4 -
Surface or flush
8
Through buttons and dip-switches
Speech volume
Call tone volume
Brightness
Colour intensity
Stand-by:
1/3mA
Operating:
200mA
Peak:
400mA
Supplied by the BUS line
blinks twice be-
66251220 - V4.4 - 15/03/22
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