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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
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
o
C
2.8 Speed dome connections
1. Connect the 485 lines of the speed dome with the DVR 485 interface.
2. Connect the video line with the DVR video input.
3. Connect the speed dome to a power supply.
Note: The speed dome A, B port and the DVR A, B port should be a corresponding
connection, A is +, B is -
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