11
4.4 Grounding
Grounding protects the device from lightning and interference. Therefore, you
must ground the device properly.You need to ground the device before it is
powered on and disconnect the grounding cable after the device is powered
off. There is a grounding screw (see Figure 1) on the front panel of the device.
The screw is for chassis grounding. After crimping one end of the grounding
cable to a cold pressed terminal, secure the end of the grounding cable to the
grounding screw and firmly connect the other end to ground.
4.5 Power port
There is a power port on the front panel of the device. You need to connect the power
cable to the power port to provide power to the device. Power port is equipped
with M12 connector, which is dustproof, waterproof, and anti-vibration.The
device supports redundant power input, when one power input is faulty, the
device can continue operating properly, thereby improving network reliability.
Note:
Cross-sectional area of the chassis grounding cable>2.5mm
2
;
Grounding resistance<5
Ω
.
Note:
●
0.75mm
2
<Cross-sectional area of the power cable<2.5mm
2
;
grounding resistance<5
Ω
.
●
It is supplied with required DC power by the engine and is not directly
connected to the public power grid.
Figure 12 Power Port (male)
●
Pin Definition
