User manual

23
Surge voltage
Between touches with same
polarity
1500V (10×160us)
Length of open
time
3ms max
Length of close
time
3ms max
Longevity
Mechanical 50×106 times (3Hz)
Electrical 200×103 times (0.5Hz)
Temperature
-40 ~+70
3.8 Other Interfaces
There are still other interfaces on the DVR, such as USB port.