Aiphone GT-1C - Manual (Page 9)

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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 unit is installed at an entrance where backlighting makes viewing
difficult, adjustment for easier viewing is performed. At night or when the area around the entrance is dark, adjustment for
easier viewing is performed.
1
If the CALL button of the entrance station is pressed, the illuminator
LED will light up.
1
When the picture is difficult to see, press the [ ADJUST] button
to switch between the three modes [Backlight adjustment 1], [Back-
light adjustment 2] and [No adjustment].
2
When communication ends, the illuminator LED will go out.
1
Pressing the [ ] button will make the illuminator LED light up.
1
When the picture is difficult to see, press the [ ADJUST] button
to switch between [Night adjustment] and [No adjustment].
2
When monitoring ends, the illuminator LED will turn off.
When a call is made from the entrance station
When a surveillance camera is mounted in the common area
Day
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.
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.
When monitoring is performed
Night
Night illumination
Backlight adjustment and night sensitivity adjustment
Switching of surveillance camera monitor in common area
5-3
5-4
5-5
NOTES: 1. Distinguishing between day and night is automatically done by the
entrance station.
2. Operation will vary depending on the entrance station setting.
NOTES: When display is performed again, the station will display using the pre-
viously set default mode.
NOTES: 1. When display is performed again, none of the previously set adjust-
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.
the illuminator
LED will light up.