Other Interfaces - E-line PRO4 Series User Manaul

Maximum switch currency
Insulation Between touches with same
polarity
Between touches with different
polarity
Between touch and winding
Between touches with same
Surge voltage
polarity
Length of open 3ms max
time
Length of close 3ms max
time
Longevity Mechanical
Electrical
Temperature -40℃ ~+70℃
3.8 RS485
When the DVR receives a camera control command, it transmits that command up the coaxial
cable to the PTZ device. RS485 is a single-direction protocol; the PTZ device can't return any
data to the unit. To enable the operation, connect the PTZ device to the RS485 (A,B) input on
the DVR.
Since RS485 is disabled by default for each camera, you must enable the PTZ settings first.
This series DVRs support multiple protocols such as Pelco-D, Pelco-P.
To connect PTZ devices to the DVR:
1. Connect RS485 A,B on the DVR rear panel.
2. Connect the other end of the cable to the proper pins in the connector on the camera.
3. Please follow the instructions to configure a camera to enable each PTZ device on the
DVR.

3.9 Other Interfaces

There are still other interfaces on the DVR, such as USB ports.
1A
1000VAC 1minute
1000VAC 1minute
1000VAC 1minute
1500V (10×160us)
50×106 times (3Hz)
200×103 times (0.5Hz)
Figure 3-3
485 Port
37