H3C S3610 Series Quick Start Manual page 71

Quick Start
H3C S3610 Series Ethernet Switches
(1): AC-input
(3): Power transformer
(5): AC-input (with 3-wire cable)
Figure 3-16 Grounding through the AC PE wire
For a DC-powered switch, if none of the first two conditions
is available, ground it through the return wire (RTN) of the
DC power supply. In this case, make sure this RTN wire is
well connected to the ground at the DC output of the DC
power cabinet.
Chapter 3 Installing the Switch
(2): Grounding screw
(4): PE wire
(6): Ethernet Switch
3-18