JVC VN-V25U - Manual (Page 20)

20
Connection / Installation
Connect the alarm input/output terminals with
external devices, such as a sensor or buzzer.
Plug/Unplug the cable while pressing the button
as shown in the diagram below.
Caution:
● 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.
Alarm Input Terminal
Connect this terminal to sensor devices, such as
an infrared sensor, door sensor, metal sensor or
manual switch.
Ⅵ 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: 1 mA
● Applied voltage at high level: 3.3 V
Alarm Output Terminal
Connect this terminal to annunciating devices,
such as annunciators, indicators, lights, or
buzzers.
Ⅵ Output requirements
● Equivalent to NPN open collector output (Set
the output logic using the Internet Explorer)
● Allowable applied voltage: DC12 V and below
● Allowable inflow current: 50 mA
● Momentary (100 ms - 5000 ms) output
(Set time using the Internet Explorer)
Caution:
● Connect the G terminal of this camera to the
GND terminal of the annunciating device or
alarm input sensor.
Alarm Input/Output Terminal
Connection
Cable to use
● Shielded cable
● Length of 50 m or shorter
CAUTION
: NEVER USE PoE AND AC 24V AT THE SAME TIME
DO NOT CONNECT TO THE TELEPHONE NETWORK
SEE INSTRUCTION MANUAL
CLASS
2
O
NL
Y
FOR
USA
ISOLA
TED
PO
W
ER
ONL
Y
FOR
EUR
OPE
AND
O THER
MONITOR
OUT
10BASE-T/
100BASE-TX
PUSH
OUTPUT
ALARM
INPUT
2
AC24V
1
Po
E
G 2 1 2 1
Push
DC3.3 V
R
3.3 V 1 mA
VCC
OUT
GND
GND
OUT
R
(Alarm Input Equivalent Circuit)
G Terminal
INPUT 1 or
2 Terminal
Sensor Example
(1)
Sensor Example
(2)
Relay Switch, etc.
VN-V25U/26U
IN R
DC 12 V
GND
Annunciating
Device Example VN-V25U/26U
G Terminal
OUTPUT 1
or 2 Terminal
(Alarm Output Equivalent Circuit)
VN-V25U_26U_EN.book Page 20 Monday, January 21, 2008 10:13 AM