19
3.8
Alarm Input and Output Connection
Please refer to the following sheet for alarm input and output connection.
There are two alarm input types for you to select: normal open (NO) and normal close (NC).
1. Alarm input
a. Please make sure alarm input mode is grounding alarm input.
b. Grounding signal is needed for alarm input.
c. Alarm input needs the low level voltage signal.
d. Alarm input mode can be either NC (normal Open) or NO (Normal Close)
e. When you are connecting two ATM DVRs or you are connecting one ATM DVR and one other device,
please use a relay to separate them,
2. Alarm output
The alarm output port should not be connected to high power load directly (It shall be less than 1A) to
avoid high current which may result in relay damage. Please use the co contactor to realize the
connection between the alarm output port and the load.
3. How to connect PTZ decoder
a. Ensure the decoder has the same grounding with ATM DVR, otherwise you may not control the PTZ.
Shielded twisted wire is recommended and the shielded layer is used to connect to the grounding.
b. Avoid high voltage. Ensure proper wiring and some thunder protection measures.
c. For too long signal wires, 120Ω should be parallel connected between A, B lines on the far end to
reduce reflection and guarantee the signal quality.
d.
“485 A, B” of ATM DVR cannot parallel connect with “485 port” of other device.
e. The voltage between of A,B lines of the decoder should be less than 5v.
4. Please make sure the front-end device has soundly earthed.
Improper grounding may result in chip damage.
3.8.1 Alarm Input and Output Details
You can refer to the following sheet
X
for alarm input and output information.
The 4/8-channel series product interface is shown as below. See Figure 3-1.
Figure 3-1
Please refer to the following sheet and Figure 3-1 for detailed information.
Icon
Note
Number 1, 2, 3……9
ALARM input 1
～
ALARM input 9
NO1 C1
、
NO2 C2……NO5 C5
Normal open activation output (on/off button)
＋
12V
12V power output. It is the power supplying of the peripheral
device such as camera.
CTRL 12V
Control power output. The power output is off when the alarm is
canceled.
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.
Содержание DVR0X04AH-VD-E
Страница 1: ...ATM DVR Series User s Manual Version 1 1 0 ...
Страница 24: ...15 Drag mouse Select motion detection zone Select privacy mask zone ...
Страница 60: ...51 Figure 4 44 Figure 4 45 Figure 4 46 ...
Страница 61: ...52 Figure 4 47 Figure 4 48 Figure 4 49 ...
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Страница 101: ...92 Figure 5 44 Figure 5 45 ...
Страница 103: ...94 Figure 5 47 Figure 5 48 ...
Страница 123: ...114 Switch user you can use another account to log in Figure 5 78 ...
Страница 149: ...140 Figure 6 39 Figure 6 40 Figure 6 41 Please refer to the following sheet for detailed information ...
Страница 156: ...147 Figure 6 51 Figure 6 52 Figure 6 53 Figure 6 54 ...
Страница 175: ...166 Figure 6 85 Figure 6 86 ...
Страница 176: ...167 Figure 6 87 Figure 6 88 Figure 6 89 Please refer to the following sheet for log parameter information ...
Страница 200: ...191 Maxtor DiamondMax 20 STM3250820AS 250G SATA ...
