User’s Manual
4
NOTE: The Loop BNC connectors are auto terminated. Do NOT connect a cable to the Loop BNC unless it is
connected to a terminated device because it will cause poor quality video.
Audio In/Out
NOTE: It is the user’s responsibility to determine if local laws and regulations permit recording audio.
The DVR does not have amplified audio output, so you will need a speaker with an amplifier. The DVR
does not have a pre-amplifier for audio input, so the audio input should be from an amplified source,
not directly from a microphone.
eSATA Port
An eSATA port is provided to connect external storage devices for recording video. Connect the external
eSATA hard disk drive (RAID) cable to the eSATA port.
CAUTION: Do NOT connect or disconnect eSATA devices while the DVR power is on. The DVR must
be powered down to connect or disconnect eSATA devices. Power up eSATA devices
so they are ready for operation before powering up the DVR. Power down eSATA devices
after powering down the DVR and then disconnect eSATA devices.
CAUTION: If the eSATA device is shut down while the device is operating, the DVR system might
not operate normally.
Alarm Input/Output
NOTE: To make connections on the Alarm Connector Strip, press and hold the button and insert the wire in the
hole below the button. After releasing the button, tug gently on the wire to make certain it is connected.
To disconnect a wire, press and hold the button above the wire and pull out the wire.
AI 1 to 16 (Alarm-In)
: You can use external devices to signal the DVR to react to events. Mechanical or electrical
switches can be wired to the
AI
(Alarm-In) and
GND
(Ground) connectors. The threshold voltage of electrical switches
for NC (Normally Closed) is above 2.4V and for NO (Normally Open) is below 0.3V, and should be stable at least 0.5
seconds to be detected. The voltage range of alarm input is from 0V to 5V. See
Chapter 3
─
Configuration
for
configuring alarm input.
GND (Ground)
: Connect the ground side of the Alarm input and/or alarm output to the GND connector.
NOTE: All the connectors marked GND are common.
NC/NO (Relay Alarm Outputs):
The DVR can activate external devices such as buzzers or lights. 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.
See
Chapter 3
─
Configuration
for configuring alarm output.
ARI (Alarm Reset In):
An external signal to the
Alarm Reset In
can be used to reset both the Alarm Out signal and the
DVR’s internal buzzer. Mechanical or electrical switches can be wired to the
ARI
(Alarm Reset In) and
GND
(Ground)
connectors. The threshold voltage is below 0.3V and should be stable at least 0.5 seconds to be detected. Connect the
wires to the
ARI
(Alarm Reset In) and
GND
(Ground) connectors.
Your DVR can record audio from up to four sources. Connect the audio sources to
Audio In
1
,
Audio In 2
,
Audio In 3
and
Audio In 4
as needed using RCA jacks. Connect
Audio Out
to
your amplifier.
