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4
Alarm Input and Output
Before device connection, please make sure:
Alarm Input
Please check the alarm type (Normal open/normal close) first. Then set decoder network
alarm type. Set decoder alarm type as NO (Normal Open) if it is ground alarm, otherwise
set it as NC (Normal Close).
Please note alarm input is active in low voltage, please ground it.
Please use a relay to separate devices, when there are two decoders, or there is one
decoder and one another device.
Alarm Output
Do not connect the alarm output port to high power load directly (It shall be less than 1A);
it may result in heavy current which may destroy the relay. Please use co contactor to
realize the connection between the alarm output port and the load.
Sound Ground
Please make sure the front-end device has earthed. Otherwise it may result in chip
damage.
Alarm input type can be NO (normal open) or NC (normal close).
The 1-channel 4K high definition series product interface is shown as in Figure 4-1.
Figure 4-1
Parameter
1-channel 4K high definition series
AB
A/B cable of the control device.
GND port
1~4
Alarm input port
C1-C4
;
NO1-NO4
Alarm output port (NO)
The 1/4-channel high definition series product interface is shown as in Figure 4-2.