51
NO1 C1
，
NO2 C2
，
NO3 C3
，
NO4 C4,
NO5 C5 NC5
The first four are four groups of normal open activation output
(on/off button)
NO5 C5 NC5 is a group of NO/NC activation output (on/off button)
CTRL 12V
Control power output. You need to close the device power to cancel
the alarm.
+12V
It is external power input. Need the peripheral equipment to provide
+12V power (below 1A).
Earth cable.
T+, T-, R+, R-
RS485 port
485 A/B
485 communication port. They are used to control devices such as
PTZ. Please parallel connect 120T
Ω
between A/B cables if there are
too many PTZ decoders.
3.8.2 Alarm Input Port
Please refer to the following sheet for more information.
z
Normal open or Normal close type.
z
Please parallel connect COM end and GND end of the alarm detector (Provide external
power to the alarm detector).
z
Please parallel connect the Ground of the DVR and the ground of the alarm detector.
z
Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
z
Use the same ground with that of DVR if you use external power to the alarm device.
Figure 3-5
3.8.3 Alarm Output Port
z
Provide power to peripheral alarm device.
z
To avoid overloading, please read the following relay parameters sheet carefully.
z
RS485 A/B cable is for the A/B cable of the PTZ decoder.
Relay Specification
Model:
JRC-27F
Material of the
touch
Silver
Rating
Rated switch capacity
30VDC 2A, 125VAC 1A
Summary of Contents for DH-D20004
Page 46: ...36 Figure 2 15 ...
Page 63: ...53 1U series 1 5U Series ...
Page 64: ...54 2U Series Figure 3 6 ...
Page 85: ...75 Figure 4 28 Figure 4 29 Figure 4 30 ...
Page 93: ...83 Figure 4 46 ...
Page 133: ...123 Figure 5 66 ...
Page 138: ...128 Figure 6 11 ...
Page 200: ...190 Samsung HA101UJ CE 1T SATA ...
