Night Illumination; Backlight Adjustment And Night Sensitivity Adjustment; Switching Of Surveillance Camera Monitor In Common Area - Aiphone GT-1C Operation Manual

Night illumination

5-3
At night, the illuminator LED lights up during an entrance station call.
It can also be made to light up at night when the entrance is being monitored.
When a call is made from the entrance station
1
If the CALL button of the entrance station is pressed, the illuminator
LED will light up.
2
When communication ends, the illuminator LED will go out.
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Backlight adjustment and night sensitivity adjustment

Day
When a unit is installed at an entrance where backlighting makes viewing
difficult, adjustment for easier viewing is performed.
1
When the picture is difficult to see, press the [
to switch between the three modes [Backlight adjustment 1], [Back-
light adjustment 2] and [No adjustment].
NOTES: When display is performed again, the station will display using the pre-
viously set default mode.
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Switching of surveillance camera monitor in common area

When a surveillance camera is mounted in the common area
Press the [ GUARD] button during calling from the entrance station,
communication with the entrance, or entrance monitoring to switch to the
surveillance camera video image. Press the button again to return to the
entrance station video image.
When monitoring is performed
1
the illuminator
LED will light up.
2
NOTES: 1. Distinguishing between day and night is automatically done by the
Night
At night or when the area around the entrance is dark, adjustment for
easier viewing is performed.
1
ADJUST] button
NOTES: 1. When display is performed again, none of the previously set adjust-
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Pressing the [ ] button will make the illuminator LED light up.
When monitoring ends, the illuminator LED will turn off.
entrance station.
2. Operation will vary depending on the entrance station setting.
When the picture is difficult to see, press the [
to switch between [Night adjustment] and [No adjustment].
ment is applied.
2. Distinguishing between day and night is automatically done by the
entrance station.
3. Pressing the [ ADJUST] button at night makes the caller's
face easier to see, but moving subjects may be more difficult to see.
During switching between the entrance camera and surveillance cam-
era in common area, the image on the monitor may become momen-
tarily distorted, but this is not a malfunction.
ADJUST] button