IC Realtime DVR-FLEX8E Product Manual - Page 28

Alarm Input and Output Details

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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 DVRs or you are connecting one 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 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 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 for alarm input and output information. X Important Please refer to the specifications for the alarm input and output channel amount. Do not merely count the alarm input and out channel amount according to the ports on the rear panel. The product interface is shown as in Figure 3-1. Figure 3-1 You can refer to the following sheet for alarm input and output information. 1，2，3，4,, 5, 6, 7, ALARM 1 to ALARM 16. The alarm becomes active in low voltage. 8, 9, 10, 11, 12, 13, 14, 15, 16 NO1 C1， The first four are four groups of normal open activation output NO2 C2， NO3 C3， (on/off button) NO5 C5 NC5 is a group of NO/NC activation output (on/off button) NO4 C4, NO5 C5 NC5 CTRL 12V +12V Control power output. The power output is off when the alarm is canceled. It is rated power output. Earth cable. T+, T-, R+, R- 4-pin full-duplex RS485 port. T+，T- are the output cable and R+， R- are input cable. 18

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18
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 DVRs or you are connecting one 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 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, 120
Ω
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 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.
Important
Please refer to the specifications for the alarm input and output channel amount. Do not
merely count the alarm input and out channel amount according to the ports on the rear
panel.
The product interface is shown as in Figure 3-1.
Figure 3-1
You can refer to the following sheet for alarm input and output information.
1
，
2
，
3
，
4,, 5, 6, 7,
8, 9, 10, 11, 12, 13,
14, 15, 16
ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
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. The power output is off when the alarm is
canceled.
+12V
It is rated power output.
Earth cable.
T+, T-, R+, R-
4-pin full-duplex RS485 port. T+
，
T- are the output cable and R+
，
R- are input cable.