Videx 6276 - System Configuration: Video and Address Setup; Video Mode and Termination Setup; Intercom Address Setup

66251125-EN - V1.2 - 31/10/16
3
6200 Series
Art.6276 - Installation instructions
Art.6276 3.5" colour display videophone
TO SET THE VIDEO MODE AND TERMINATION
The videophone can operate with either composite video signal (coax cable) or balanced video signal (two wires). Switches 1 & 2 of
DSW2 are used to set video mode while switches 3 & 4 are for video termination.
VIDEO MODE  DSW2
Switches 1,2 Mode
Coax
Balanced
75 OHM VIDEO TERMINATION  DSW2
Switches 3,4 Termination
Enabled
Disabled
Switches 3 and 4 adjust the video signal impedance. when using more than one videomonitor in parallel (without a video
splitter) put both switches in the OFF position on all but the last videomonitor (end of line).
VIDEOMONITOR/INTERCOM ADDRESS, VIDEO MODE AND TERMINATION SETUP DSW1
Each intercom is addressed in binary (PHONE ID) using the 8 way dipswitches located on the rear of the unit. Each switch corre-
sponds to one bit which can have a value 0 (OFF) or 1 (ON). Each bit corresponds to a decimal weight depending on the position:
Switch 1 = decimal 1, 2=2, 3=4, 4=8, 5=16, 6=32, 7=64, 8=128. I.E. to set the address 37, put switches 1, 3 and 6 on (1+4+32=37).
SWITCHES DECIMAL WEIGHT ADDRESS
8 7 6 5 4 3 2 1 128 64 32 16 8 4 2 1
OFF OFF OFF OFF OFF OFF OFF ON 0 0 0 0 0 0 0 1 1
OFF OFF OFF OFF OFF OFF ON OFF 0 0 0 0 0 0 1 0 2
OFF OFF OFF OFF OFF OFF ON ON 0 0 0 0 0 0 1 1 3
OFF OFF OFF OFF OFF ON OFF OFF 0 0 0 0 0 1 0 0 4
OFF OFF ON OFF OFF ON OFF ON 0 0 1 0 0 1 0 1 37
ON OFF ON ON OFF ON OFF OFF 1 0 1 1 0 1 0 0 180
CONNECTION TERMINALS SIGNALS
+VD
12Vdc output to supply coax video distributor
Art.894N
+20 Video power supply 17÷20Vdc
V1
Balanced video signal V1 sync. (balanced video signal
mode)
V/V2
Balanced video signal V2 sync. (balanced video signal
mode)
Composite video signal (coax video signal mode)
GNDV Video power supply ground reference
L BUS line
– BUS line ground reference
LB Local bell input (active low)
AL Alarm input (active low)
DOL 12Vdc input to supply Aux LED
EXTC Call tone output for extension sounder (Art.512A)
SW
Service button connection
Max 24 Vdc
50mA
SW
TECHNICAL SPECIFICATION
Working Voltage: 17÷20Vdc
Power Consumption: 200mA during a call
120mA during a conversation
Working Temperature: -10°C +50°C