37
Maximum switch currency
1A
Insulation
Between touches with same
polarity
1000VAC 1minute
Between touches with different
polarity
1000VAC 1minute
Between touch and winding
1000VAC 1minute
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
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.
Figure 3-3
3.9
Other Interfaces
There are still other interfaces on the DVR, such as USB ports.
485 Port
Содержание ECO4 Series
Страница 83: ...80 Figure 4 53 Figure 4 54 4 10 1 3 Encode...
Страница 109: ...106 Figure 4 81 Figure 4 82 Figure 4 83...
Страница 115: ...112 Figure 4 89 Figure 4 90...
Страница 116: ...113 Figure 4 91 Figure 4 92...
Страница 119: ...116 Figure 4 96 Figure 4 97...
Страница 125: ...122 Figure 4 106 Figure 4 107 4 10 4 1 2 2Trigger Snapshot...
Страница 143: ...140 Figure 4 129 For digital channel the interface is shown as below See Figure 4 130 Figure 4 130 4 10 5 5 ATM POS...
Страница 153: ...150 Figure 4 141...
Страница 228: ...225 448K 196M 512K 225M 640K 281M 768K 337M 896K 393M 1024K 450M 1280K 562M 1536K 675M 1792K 787M 2048K 900M...
Страница 244: ...241...