User guide

Grounding and lightning protection Chapter 2: Planning considerations
2-16
phn-2513_004v000 (Oct 2012)
In a 1+1 Hot Standby protected end, prior to connecting CMUs via the protection
interface, connect the front panel ground stud of both CMUs to a common ground (Figure
47).
Figure 47 Grounding and lightning protection inside high building (protected end)