23
•
Please parallel connect the Ground of the DVR and the ground of the alarm detector.
Please
connect the NC port of the alarm sensor to the DVR alarm input (ALARM)
Use the same
ground with that of DVR if you use external power to the alarm device.
3.3.4.6 Alarm Output Ports
•
Provide external power to any external alarm device.
•
To avoid overloading, please read the following relay parameters sheet carefully.
•
RS485 A/B cable is for the A/B cable of the PTZ decoder.
T+,T-,R+,R- are four-wire double duplex
RS485 port.
T+ T-: output wire
R+ R-: input wire
Relay Specification
Model:
JRC-27F
Material
Silver
Rating
(Resistance Load)
Rated switch capacity
30VDC 2A, 125VAC 1A
Maximum switch power
125VA 160W
Maximum switch voltage
250VAC, 220VDC
Maximum switch currency
1A
Insulation
Between contacts with same polarity 1000VAC 1 minute
Between contacts with different
polarity
1000VAC 1 minute
Between contacts and winding
1000VAC 1 minute
Surge voltage
Between contacts with same polarity 1500V (10×160us)
Length of open
time
3ms maximum
Summary of Contents for AMDVTENL8
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Page 25: ...25 2 Connect a USB mouse to the front of the DVR...
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