Part 1 – Introduction
16
RS232 Connection
Connect an external device such as a POS unit to this
port.
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4
RS485 Connection
This NVR supports the RS485 half-duplex serial
communication protocol for connecting to external
devices such as POS units.
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Alarm Connection
Connect alarm connectors to these ports.
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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 external 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
.
•
G (Ground)
Connect alarm in or out's ground cable to the G
connector.
All connectors marked "G" are common connectors.
•
NC/NO (Relay Alarm Outputs)
This NVR is capable of activating/deactivating buzzers,
lights, and other external devices. Connect the device to
the C (Common) and NC (Normally Closed) or C and NO
(Normally Open) connectors. NC/NO is a relay output
which sinks 2A@125VAC and 1A@30VDC. For more
information on alarm out setup, refer to the
.
•
Connector Arrangement
AI1 through AI4
Alarm In 1 through 4
G
Ground
C
Relay Common
NO/NC
Normally Open and Normally
Close Relay Alarm Out
(connected to C port)
Power Cable Connection
Connect the power cable to this port. This NVR does not
feature a separate power on/off button and will turn on
the moment power is supplied.
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• Organize the power cable so that it will not cause
people to trip over or become damaged from chairs,
cabinets, desks, and other objects in the vicinity. Do
not run the power cable underneath a rug or carpet.
• The power cable is grounded. Do not modify the
power plug even if your power outlet does not have
a ground contact.
• Do not connect multiple devices to a single power
outlet.
