Infinova V3060 Series, Installation & Operation Instructions

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2.4 Alarm Input/output Connection Method
Introduction
1. Alarm input interface introduction
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IN ALARMS
G G
Figure 2-2 Alarm input interface
G (GND):
2 "Alarm Input" GND ports, they are internally
connected and shared the GND with every alarm input device.
1-16: C
onnect with alarm input device, activate by normal
open/normal close electricity level, voltage range 0~5V.
The alarm input is switching value (main
node). Refer to the
following diagram for the connection if the alarm input signal isn't
switching value signal, such as voltage signal.
Voltage
Output
Switching
Value Input
Alarm DVR
ALM+
ALM-
IN(n)
G
Relay
Figure 2-3 Alarm input connection method
Note:
(1) Normal Open (N.O.): Normally, the relay status is open. The
relay will close when it's shorted with ground, and the device
will generate alarm signals;
(2) Normal Close (N.C.): Normally, the relay status is closed. (The
relay is connected to ground). The device will generate alarm
signals when the relay is disconnected.
2. Alarm output interface introduction
1 2 G G 3 4
G
G
RELAYS OUT
Figure 2-4 Alarm output interface
G: "Alarm Output" GND port, every output port and the related
alarm output port in the left side are used together.
1-4: Connect with 4 alarm output devices respectively.
Refer to following diagram for connection of alarm output.
DVR Alarm Output
Port
DC Load
Indicator
J1400
1
G
+5V
Ala
rm
Ci
rc
u
it
Figure 2-5 Alarm output DC load connection
DVR Alarm Output
Port
AC or DC Load
J1400
1
G
+5V
Relay
DC/AC
Figure 2-6 Alarm output relay connection
As shown in above diagram, the internal alarm circuit makes
1/2/3/4 output port connected with the corresponding G when
there's no alarm. And 1/2/3/4 output port will contact with +5V
node when there's alarm, which will activate the indicator or
audible alarm.
There're 4 jumpers on the mainboard, J1400, J1401, J1402 and
J1403. They are closed in factory default setting. When they are
open, they can be used to avoid damage to device if the external
alarm circuit is shorted. They should be closed normally.
There're 4 alarm indicators on the mainboard, LD901, LD902,
LD903 and LD904. They are related to the 4 alarm output
respectively, and will be on if there's alarm.
Note:
(1) The 1/2/3/4 output port 5V voltage when there's alarm,
which is supplied to the DC load with rating voltage less than
+5V only, and current limitation protection circuit should be
added. It must use relay when connect with high voltage AC or
DC load, or the alarm function will be invalid, what's more,
may have damage to the device. It's recommended to use relay
connection (refer to Figure 2-6).
(2) Make sure the 1/2/3/4 output ports are not shorted to the
corresponding G, or the device will be damaged. Disconnect
the jumper cap before finishing connection of circuit and
confirm no short-circuit between 1/2/3/4 output ports and
corresponding G when connect with external alarm circuit.