Grounding The Switch Through The Rtn Wire Of A Dc Power Supply - H3C S10504 Installation Manual

Grounding the switch through the RTN wire of a DC power
supply
CAUTION:
Make sure the RTN wire is well grounded from the DC egress of the DC power cabinet.
If the switch is powered by a –48 VDC power supply and no grounding strip is available at the
installation site, you can ground the switch through the return (RTN) wire of the DC power supply, as
shown in Figure
Figure 17 Grounding the switch through the RTN wire of the DC power supply
17.
DC power
box
–48V strip
RTN strip
PGND strip
20