3-6
Figure3-5 Grounding the router through the PE wire of AC power supplies
Grounding the router through the RTN wire of DC power
supplies
CAUTION:
Make sure the RTN wire is grounded reliably when it is routed out from the DC power cabinet.
If the router is powered by a –48 VDC power supply and no grounding strip is available at the
installation site, you can ground the router through the return (RTN) wire of the DC power supplies,
as shown in
Figure3-6 Grounding the router through the RTN wire of the DC power supplies