Part 1 – Introduction
18
Use the
AUDIO IN
port to establish two-way
communication with cameras.
•
This NVR does not feature a built-in audio amplifier
unit and therefore requires the user to purchase a
speaker system with a built-in amplifier separately.
It's possible to connect an amplified audio source to
the NVR, but microphones that do not have a built-
in amplifier will not function properly if connected
to the NVR directly. If this is the case, connect the
microphone to the NVR via a pre-amp.
•
Check your local laws and regulations on making
audio recordings.
Monitor Connection
Connect to the
VGA OUT
or
HDMI
port.
•
Use a certified cable marked with an HDMI logo
when using HDMI. The screen may not display or
a connection error may occur if you do not use a
certified HDMI cable.
•
It is recommended that you use the following HDMI
cable type.
–
High-speed HDMI Cable
–
High-speed HDMI Cable with Ethernet
Alarm Connection
Connect alarm connectors to these ports.
Press down on the button and insert the cable into
the opening. Release the button and then pull on the
cable slightly to ensure it is held securely in place. To
disconnect the cable, press down on the button again
and pull the cable out.
●
Alarm In 1 through 4
This NVR is capable of responding to event signals from
exterxnal alarm in devices. Connect mechanical or
electrical switches to AI 1 through 4 and the G (ground)
connector. In order to be recognized by the NVR,
the signal from an alarm in device must be less than
0.3V (Normally Open) and maintained for at least 0.5
seconds. The alarm in voltage range is 0V to 5V. For more
information on alarm in setup, refer to the
Alarm-In in
the operation manual
.
●
G (Ground)
Connect alarm in or out's ground cable to the G
connector.
All connectors marked "G" are common connectors.
