User manual

H.264 Network Digital Video Recorder User Manual
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2.7.1 Alarm input port specification

This feature should be used in conjunction and external alarm module,
some models have an external alarm module for optional.


4 channels alarm input. Alarm input type unlimited.
The grounding and the com port of the alarm sensor are parallel (The alarm sensor is external power supply) .
The grounding of the alarm and the DVR should be shared.
The NC port of the alarm sensor must be connected with the DVR alarm input port.
The grounding of the power supply and the alarm sensor must be shared when used in external power supply.
2.7.2 Alarm output port specification

This feature should be used in conjunction and external alarm
module, some models have an external alarm module for optional.


1 channels alarm output. There is external power supply when using the external alarm equipment.
To avoid overload and damage the system, please refer to the relay before the connection, the relay parameters
related to the Annex.
2.7.3 Alarm output port relay parameters
TypeJRC-27F
Interface material silver
rating
(resistance load)
Rating switch capacity 30VDC 2A, 125VAC 1A
maximal switch power 125VA 160W
maximal switch voltage 250VAC, 220VDC
maximal switch current 1A
isolation Homo-polarity interface 1000VAC 1minute
Inhomo-polarity interface 1000VAC 1 minute
Interface and winding 1000VAC 1 minute
Surge voltage Homo-polarity interface 1500VAC (10×160us)
Turn-on time 3ms max
Turn-off time 3ms max
longevity mechanical
50×106 MIN3Hz)
electric 200×103 MIN (0.5Hz)
Environment temperature
-40~+70