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7
2.2 Rear View
RS-232
ALARM
DC12V
RS-485
AUDIO
IN
IN
OUT
OUT
VIDEO
TO
MONITOR
TO
MUX'S VCR IN
FROM MUX
MAIN MONITOR
ETHERNET
10/100
I/O
25 26 27 28 29 31
32 33 34 35 37 38 36
VIDEO IN Connector: This BNC connector is used to connect the video output from a camera or a MUX
(multiplexer) to the DVR.
FROM MUX MAIN MONITOR Connector: This BNC connector is used to connect the live video output
from a MUX to the DVR.
AUDIO IN Connector: This connector is used to connect the audio output from a camera, a MUX, or
other audio device to the DVR.
ETHERNET 10/100 Connector: This is one standard RJ-45 connector for 10/100 Mbps Ethernet
networks.
RS-485 Port: The RS-485 communication ports function as connectors when two or more units are
connected in series to expand the storage capacity.
RS-232 Port: The RS-232 communication port functions as a connector to an external control device.
Please refer to for more details.
VIDEO OUT Connector: This connector provides the unit’s composite video signal to a MUX.
MONITOR Connector : This connector provides the unit’s composite video or a MUX’s live signal if
connected to a display device.
AUDIO OUT: This provides the unit’s audio signal to a speaker.
ALARM I/O: This is a 9-PIN D -SUB connector including SWITCH OUT, GROUND, ALARM OUT, DISK
FULL, RECORD IN, ALARM R ES ET, and ALARM IN for connecting with external devices. Please refer
to the next section (2.3) for details.
Plug Inlet: The inlet connects to an external power supply. Connect a 12 Vdc UL Listed Class 2 or ITE
LPS Power Supply.
Wire Catch: The wire catch secures the power cord and keeps it in place (so that it does not droop or
hang loosely).
Ground Screw: Screw used to ground the chassis.