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4.7 Control channel
As long as the camera is switched on via the motion
detector or if the sliding switch (8) is in the position
ON, the control channel emits a control signal. If the
receiver is also provided with a control channel, it is
possible to activate an acoustic or optical signal
device or another additional unit (e. g. video recorder
for automatic start of a recording) via this channel.
5 Specifications
Approval No.: . . . . . . . . . . BZT G750 634G
Transmitting frequency: . . channel 1
Transmitting power: . . . . . 25 mW (EIRP)
Antenna: . . . . . . . . . . . . . internal omnidirectional
Operating range
in case of visual contact: up to 750 m
in buildings: . . . . . . . . . up to 50 m
Video
signal format: . . . . . . . . CCIR
bandwidth: . . . . . . . . . . 30 Hz – 5 MHz
modulation: . . . . . . . . . frequency-modulated F3F
Audio
bandwidth: . . . . . . . . . . 15 Hz – 20 kHz
audio transmission: . . . tone A (6.5 MHz), mono
modulation: . . . . . . . . . frequency-modulated F3F
type of microphone: . . . electret
Lens: . . . . . . . . . . . . . . . . 1 : 2.0/3.8 mm (72°)
Minimum illumination: . . . 0.2 lux
Resolution: . . . . . . . . . . . . 380 lines
Coverage of
the motion detector: . . . . . 5 m, hor. 100°, vert. 82°
Trigger input: . . . . . . . . . . for normally open (NO)
Power supply: . . . . . . . . . 12 V /280 mA via de-
Quiescent current
(only motion detector
switched on): . . . . . . . . . . max. 1 mA
Ambient temperature: . . . 0 – 40 °C
Dimensions: . . . . . . . . . . . Ø 190 mm x 52 mm
Weight: . . . . . . . . . . . . . . . 482 g
According to the manufacturer.
Subject to technical change.
2.4145 GHz
channel 2
2.4285 GHz
channel 3
2.4425 GHz
channel 4
2.4565 GHz
channel 5
2.4705 GHz
antenna
625 lines
50 frames/s
contact or 5 – 30 V~
livered power supply unit
connected to
230 V~/50 Hz/14.2 W
11
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