![background image](http://html1.mh-extra.com/html/zavio/nq2040/nq2040_user-manual_3196394007.webp)
7
2.3
I/O
Terminal
Block
Circuit
&
Pin
Definition
This
SNVR
provides
a
10
pin
cable
for
external
I/O
which
is
used
to
connect
input/
output
devices.
The
pin
definitions
are
described
below.
PIN
Definition
Description
Max.
V/A
1
~
4
Alarm
In
1~
4
Connected
to
GND
to
activate,
or
leave
floating
(or
unconnected)
to
deactivate.
3V
DC
/
50mA
GND
GND
Ground
‐
SW
Alarm
Out
Relay
contact
output
for
DC
device.
If
used
AC
device,
need
add
an
external
relay.
1A
at
30V
DC
A
&
B
RS
‐
485
Connected
to
RS
‐
485
interface.
‐
Summary of Contents for NQ2040
Page 1: ...Zavio Standalone NVR User Manual Local Model NQ2040 NQ2080 NQ2160 ...
Page 16: ...16 ...
Page 19: ...19 ...
Page 54: ...54 6 4 4 Event action ...