Alarm Input/Output Terminal Connection; Alarm Input Terminal; Alarm Output Terminal - JVC VN-C20 Instructions Manual

Alarm Input/Output Terminal
Connection
Connect the alarm input/output terminals with
external devices such as a sensor, buzzer, etc.
Plug/Unplug the cable by pressing the button as
shown in the diagram below.
Cable to use
● Length of 50 m or shorter
● UL1007, UL1015 or equivalent products
● AWG#22 - AWG#18 or equivalent products
1 2
POWER VIDEO OUT
CAUTION: Do not use
PoE and AC24V together
Push
Caution:
● Noises from an external source may cause
malfunctions even when the cable used in
shorter than 50 m. In this case, use a
shielded cable or move the cable away from
the noise source.
G 2 1 2 1
ALARM
PUSH
10BASE-T/100BASE-TX
DO NOT CONNECT TO THE
TELEPHONE NETWORK
For USA

Alarm Input Terminal

Connect this terminal to sensor devices, such as an
infrared sensor, door sensor, metal sensor, manual
switch, etc.
Input requirements
● No-voltage relay NPN open collector input
● Polarity of input detection can be selected
using a software
● Make/Break (500 ms and above)
● Circuit current at low level: 0.3 mA
● Applied voltage at high level: 3.3 V
VN-C20
DC3.3V
INPUT
Terminal 1
R
or 2
3.3V
Grounding
Terminal
(Alarm Input Equivalent
Circuit)

Alarm Output Terminal

Connect this terminal to annunciating devices, such
as annunciators, indicators, lights, buzzers, etc.
Output requirements
● Equivalent to NPN open collector output (Set
the output put logic via the Internet Explorer)
● Allowable applied voltage: DC12 V and below
● Allowable inflow current: 50 mA
● Momentary (100 ms to 5000 ms) output
(Set time via the Internet Explorer) (A Page 38)
VN-C20
OUTPUT
Terminal 1
or 2
Grounding
Terminal
(Alarm Output
Equivalent Circuit)
Caution:
● Connect the G terminal of this camera to the
GND terminal of the annunciating device.
Sensor
Connection
Example (1)
VCC
R
OUT
0.3mA
GND
Sensor
Connection
Example (2)
Relay, switch,
etc.
OUT
GND
Alarm Device
Connection
Example
DC 12 V
R
IN
GND
17