4 Connections and block diagram 
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4.2.2  Power Supply Connection 
 
 
 
  Use power line with AWG 24 to 12. 
  Calculate the total power consumption first and then connect a 
power supply system of appropriate capacity. 
4.2.3  Communication Line Wiring 
 
 
 
  Do not tie the communications line together with the AC power line. 
  Use twisted pair cables for the communications line only. 
  Do not allow the communication line to exceed 800 m in length. 
  For further details, please refer to ‘6-5, Communications’ on page 61.