JVC VN-685U Benutzerhandbuch

Connect the alarm signal cable to external 
devices, such as a sensor or buzzer.

● Noises from an external source may cause 

the camera to malfunction even when the 
cable used is within 50 m. In this case, move 
the cable away from the noise source.

Connects to sensors such as infrared sensors, 
door sensors, metal sensors and manual 
switches.

● To prevent noise from entering the internal 

circuit, supply non-voltage contact signal to 
the alarm input signal.

● Do not supply voltage.
● When the contact is short (MAKE) or open 

(BREAK) on the menu, you can set it to 
Alarm.

● Supply such that the alarm signal continues 

for at least more than 500 ms. The alarm 
signal may not be recognized if it is less than 
500 ms.

Connect to alarm devices such as alarm, 
indicator, light or buzzer.

● Alarm output signal is an open collector output 

insulated with photo coupler.

● During an alarm, it is ON.
● As this terminal is polarized, be sure to 

connect it such that the voltage of the + output 
is higher than that of the – output.

● It will be damaged if reverse voltage is 

supplied.

● Length of 50 m or shorter
● UL1007, UL1015 or equivalent products
● AWG#22 to AWG#18 or equivalent 

products

Solder welding or 
crimping

Insulating 
tape

IN

COM

Rating:
Max. applied voltage: DC 20 V
Max. driving current: 25 mA

OUTPUT

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