Eaton Electrical MN05001002E 사용자 설명서

 

Intelligent Technologies QCPort System Install Manual 

November 2005  

 

MN05001002E 

For more information visit 

www.eatonelectrical.com

  

Page 

20

 

Locate the power supply at the end, middle, or anywhere along the cable, as illustrated in 
the following figure. 

 

 

 

You must ground the QCPort system at only one location. 

 

If you use more than one power supply, all of them should be attached to the same 
earth ground. 

 

Ground the G conductor at only one place at the power supply that is closest to the 
physical center of the QCPort system to maximize the performance and minimize the 
effect of outside noise.  

To ground QCPort: 

•  Connect the G wire to earth ground using a 1 in (0.25 mm) copper braid or a #8 

AWG wire up to 10 ft (3 m) maximum in length. 

•  Use the same wire to connect the power tap to earth ground. 

Power 

Supply 

Device 

Device 

Device 

Biasing resistor 

Biasing resistor