JVC VN-C205 - Manual (Page 18)

18
Preparation (Step 1 Connection/Installation)
Connect the alarm input/output terminals to
external devices such as sensors and buzzers.
1
Loosen the screws on both edges of the
terminal block using a flathead screwdriver,
followed by dismantling it as shown in the left
diagram.
2
Strip the coating of the alarm signal cable by
about 4mm (1/8 inches) before inserting it into
the terminal.
3
Turn the screw on the side to fasten the alarm
signal cable.
* Connect the alarm terminal according to
step 4 of “2 Installation.” (
☞
Page 20)
1-2 Mounting the Camera to the Ceiling (Continued)
Connect this terminal to an infrared, door or
metallic sensor, or to a manual switch.
Input Requirements
● No-voltage relay or NPN open collector input
● The polarity of input detection can be selected
via software
● Make/Break/Toggle (at least 250 ms)
● Circuit current at low-level: 1.2 mA
● Voltage applied at high level: 12 V
● Alarm Input Terminal
OUT
R
DC12V
GND
1.2mA
R
VCC
OUT
GND
12V
VN-C205
(Alarm Input
Equivalent Circuit)
Grounding
Terminal
Sensor
Connection
Example (1)
Relay, switch,
etc.
Sensor
Connection
Example (2)
Note
Cable Specifications
50 m or shorter in length
UL1007, UL1015 or equivalent
AWG#22 to AWG#18 or equivalent
Caution
Due to external noise, the cable may not
function properly even when the cable length
is less than 50 m. In this case, use a shielded
cable or take measures such as keeping the
cable away from the noise source.
Alarm Signal
Cable
Flathead
Screwdriver
Flathead
Screwdriver
4 mm (1/8 inches)
1
2
3
1
Ⅵ Connection to Alarm Input/Output Terminal
1. Preparations (Continued)
C205_p2-26 05.7.4, 0:58 PM 18