5
1.6
Rear Panel
Please note the following contents based on our 78-8P series product. For detailed operation instruction,
please refer to the User
’s Manual included in the resources CD.
The rear panel is shown as below. See Figure 1-2.
Figure 1-2
Please refer to the following sheet for detailed information.
Port Name
Function
Power button
/
Power on/off button.
Power input
port
/
Input AC 100~240V power.
MIC IN
Audio input
port
Bidirectional talk input port. It is to receive
the analog audio signal output from the
devices such as mike phone, pickup.
MIC OUT
Audio output
port
Audio output port. It is to output the analog
audio signal to the devices such as the
sound box.
1-16
Alarm input
port 1-16.
There are four groups. The first group is
from port 1 to port 4, the second group is
from port 5 to port 8, the third group is
from 9 to 12, and the fourth group is
from 13 to 16. They are to receive the
signal from the external alarm source.
There are two types; NO (normal
open)/NC (normal close).
When your alarm input device is using
external power, please make sure the
device and the NVR have the same
ground.
Ground end
Alarm input ground end.
NO1 to NO5
5-ch alarm
output port
5 groups of alarm output ports. (Group
1
：
port NO1
～
C1,Group 2:port NO2
～
C2,Group 3:port NO3
～
C3, Group 4
：
port NO4
～
C4, Group 5: port NO5, C5,
NC5).Output alarm signal to the alarm
C1 to C5
