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Installation Manual
H3C S3100 Series Ethernet Switches
( 1 )
( 1 )
( 1 )
( 1 )
(1) Power input
(3) Protection grounding cable
(5) Angle steel
Figure 3-26 Ground the switch by burying the grounding body into the earth
For an AC-powered switch, if none of the above two conditions is available,
ground it through the PE cable of the AC power supply. In this case, make sure
this PE cable is well connected to the ground at the power distribution room or AC
transformer.
(1) AC power socket
(3) Power transformer
(5) 3-core cable for AC power input
Figure 3-27 Ground the switch through AC PE cable
For a DC-powered switch (–48 VDC), if none of the first two conditions is available,
ground it through the return cable (RTN) of the DC power supply. In this case,
make sure this RTN cable is well connected to the ground at the DC output of the
DC power cabinet.
( 2 )
( 2 )
( 2 )
( 2 )
( 3 )
( 3 )
( 3 )
( 3 )
( 4 )
( 4 )
( 4 )
( 4 )
( 5 )
( 5 )
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( 5 )
(3 )
(3 )
(3 )
(3 )
(5 )
(5 )
(5 )
(5 )
(4 )
(4 )
(4 )
(4 )
(2) Grounding screw
(4) Earth
(1 )
(1 )
(2 )
(2 )
(2 )
(2 )
( )
(6)
( )
(6)
(2) Grounding screw
(4) PE cable
(6) Ethernet switch
3-22
Chapter 3 Installation
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