Niko 10-498 Mode D'emploi page 14

10-498
2. MOuNTING
To connect the camera to the video transmitter, connect the core of the coax cable (75Ω)
for the video signal to terminal V (Video IN). The shield of the coaxial cable must be con-
nected to the mass ⊥ (Video IN).
Terminal 12V (camera) is a 12V DC output terminal. Use this terminal in combination with
the mass ⊥ in order to control an external camera (12V DC; max. 250mA). (See connec-
tion diagram p.16)
For cameras with a power supply with other specifications, you must provide the power
supply yourself.
3. OPERATION AND uSE
If the video transmitter has been connected correctly, it can immediately be used to send
the image of an external camera to the system. No need for programming. The image can
be displayed continuously on a monitor or TV via the video receiver (10-499) or temporarily
via a internal video unit.
In combination with an external audio unit
If the video transmitter is used in combination with an external audio unit, the image is
displayed on the video internal unit after a call at the external unit.
As extra camera for a video external unit
If you want to use an external camera in combination with a video external unit, you must
connect it with the video transmitter to a video switcher 10-823 (see manual 10-823).
4. TECHNICAL DATA
Power supply voltage:.................. +24V DC
Dimensions (in mm): ................... H51 x W51 x D22
Weight:....................................... 33g
Operating temperature: ............... -20 to 50°C
Max. power consumption: ............ 300mA
Camera output: ........................... 12V DC; max. 250mA
Input impedance: ........................ 75Ω
Output impedance: ...................... 100Ω (symmetrical)
Adjusting range (amplification: ..... -3 to +9dB
Attention: Use a 75Ω coaxial cable and 75Ω connector in order to guarantee an optimum
image quality!
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