Other Interfaces; Rs485 - Panasonic CJ-HDR216 User Manual

（Resistance
Maximum switch power
Load）
Maximum switch voltage
Maximum switch currency
Between touches with same polarity
Between touches with different
Insulation
polarity
Between touch and winding
Surge voltage Between touches with same polarity
Length of open
3ms max
time
Length of close
3ms max
time
Mechanical
Longevity
Electrical
-40℃ ~+70℃
Temperature

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 device‎can't‎return‎any‎
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.
485 Port
Figure ‎ 3 -3
125VA 160W
250VAC, 220VDC
1A
1000VAC 1minute
1000VAC 1minute
1000VAC 1minute
1500V (10×160us)
50×106 times (3Hz)
200×103 times (0.5Hz)
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