Grounding The Switch By Using The Rtn Wire Of The Dc Power Supply - HP FlexFabric 12900E series Installation Manual

Grounding the switch by using the RTN wire of the DC power
supply
CAUTION:
• Make sure the RTN wire is reliably grounded from the DC egress of the DC power cabinet.
• The power cord color code scheme in Figure 16 is for illustration only. The cable delivered for
your country or region might use a different color scheme. When you connect a power cord,
always identify the polarity symbol on its wires.
When the switch is powered by a –48V DC power source and no grounding strip is available at the
installation site, you can ground the switch by using the RTN wire of the DC power supply, as shown
in Figure 16.
Figure 16 Grounding the switch by using the RTN wire of the DC power supply
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