Videx VRVK-1/6758, Installation Handbook

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66250705-EN - V5.1 - 30/09/20
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VRVK/6758 Series “6 wire Bus” Vandal Resistant videokit
VRVK/6758 Series - Installation handbook
Art. 6758
7" hands free colour display digital videomonitor
2 WAY DIP - SWITCH ( SW2 )
The two way dip-switch adjusts the impedance of the video signal. The default setting is “ON” for both
switches (75 Ohm): when there are more videophones in parallel connection (without video distributor)
both switches must be “ON” only on the last videophone (looking at the connection order) while for all
other videophones both switches must be set to “OFF”.
MELODY TYPE SETTING
1. Press and keep pressed button for 10 seconds to enter melody type programming mode: the unit plays the current melody
and then a “beep“;
2. After the “beep” press buttons to select the next melody: a new melody will play for some seconds then the unit emits a
“beep“. There are 9 melodies available.
Note:
press buttons only after the melody is over and the unit emits the “beep“;
3. When desired melody is playing, wait for some seconds: the unit completes the melody and emits a “beep”, then the unit emits a
double “beep“ that con fi rms the new setting is properly stored;
4. The unit returns to stand-by mode.
CONNECTION TERMINALS SIGNALS
+V
20Vdc Input/Output (As input 16÷20Vdc 0,5A – as output 20Vdc 0,5A max)
– Ground reference for +V terminal.
1
Speech line output from microphone and data signal (Approx. 12V in stand-by, 5V during a conversation)
2
Speech line input toward the loudspeaker (Approx. 12V in stand- by, approx. 3V during a conversation)
V1
Balanced video signal 1 sync.–
V2 Balanced video signal 2 sync.+
24Vac 1A max power input
LB Local call input (5V in standby, 0V to trigger)
SB
Service button (open collector) active low output. The button goes active when the button is pressed
(Open Collector 24Vdc 100mA max)
LD
12Vdc input for door-open LED
2A Speech line input toward the loudspeaker of the parallel telephone (Approx. 12V in stand-by, 3V during a conversation)
3A Output switched ground for parallel telephone
4A
Output call tone for parallel telephone
5A
Input for door-open command from parallel telephone
12M 12Vdc power supply for Memory Board version (optional)
MEMORY BOARD
This device is also available in the version with memory board (Art. 6758/VM).
If you have that version, please refer to the “6200, 6300, 6400 and 6700 Series Memory Board” user manual (in
English and Italian) for installation and use.
The manual is available for download: click/tap or scan the QR code.
TECHNICAL SPECIFICATION
Power Supply:
24Vac in or 20Vdc in
Power consumption:
Stand-by: 50mA Max
Operating: 400mA Max
Working Temperature:
-10 +50 °C