Technical Features - Urmet nexo 1708 Manual Del Usuario

1.1 TERMINAL PINS DESCRIPTION
RT Secondary video door phone power supply positive
R2 Video door phone power supply positive
V4 Composite video signal for in-out connection of a second video door phone (if not present, insert
The 75Ohm resistor by moving the termination jumper)
V5 Video signal ground
V3 Composite video signal
R1 Video door phone power supply negative
R3 Video quite power-on
CA Call signal
2 Microphone signal
6 Power supply ground
1 Loudspeaker signal
10 Power supply ground
9
Door lock release button activation
Y2 Additional button terminal pins
}
Y1 (for electric loads activation use a relay box)
X1 Additional button terminal pins
}
X2 (for electric loads activation use a relay box)
Jumper If the video door phone is installed at the end of a line, the jumper must be in 75Ω position,
otherwise in ∞ position (default)
2 OPERATION
2.1 ANSWER TO A CALL
After a call coming from a video door phone unit, the video door phone rings and shows the visitor image.
To activate communication, press the button
To end communication, press again the button
§
Audio can be activated only if the display is on.
2.2 ELECTRIC LOCK ACTIVATION
The electric lock connected to the door unit can be activated at any time by pressing the suitable button
(4).
8
(3)
(2)
(5).
(5).
3 ADJUSTMENTS
3.1 BRIGHTNESS AND COLOUR ADJUSTMENT (30 LEVELS)
During auto-on or after a call has been received
a) Press Menu button to access brightness adjustment, then press
b) Press Menu button to access colour adjustment, then press
c) Press Menu button for the third time to exit from settings.
3.2 AUDIO LEVEL ADJUSTMENT
• To adjust call ring tone level, move the potentiometer Vol.1 (11) on the rear side of the video door phone
• To adjust conversation volume level, move the potentiometer Vol.2 (10) on the rear side of the video door
phone.
§
Audio levels are set to optimum values during production, it is suggested to change values only if
necessary.

4 TECHNICAL FEATURES

Power supply voltage: ..............................................................................................................18 Vdc +/- 2 V
Max. current consumption: .................................................................................................................450 mA
Current consumption in standby: ............................................................................................................0 mA
Power consumption when operative: ......................................................................................................<8 W
Liquid crystal display: ........................................................................................................................... 7" TFT
Screen dimensions: ....................................................................................................................155 x 87 mm
Video resolutions: .............................................................................................................. 320H x 280V lines
X1,X2 and Y1,Y2 contact max. range: ............................................................................... 100 mA @ 18 Vdc
Working temperature range: ............................................................................................................... 0÷50 °C
Max. humidity: ........................................................................................................................................<80%
Dimensions (w x h x d): ................................................................................................. 200 x 136 x 24,5 mm
DS1708-001C DS1708-001C
for adjustment.
for adjustment.
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