Figure 2-3 Grounding And Lightning Protection On Mast Or Tower - Motorola PTP 250 User Manual

PTP 250 User Guide
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In high lightning prone geographical areas, additional ground kits should be
installed at spacing between 15 to 22 m (50 to 75 ft
on towers taller than 45 m (150 ft).
A schematic example of a mast or tower installation is shown in

Figure 2-3 Grounding and lightning protection on mast or tower

First point of contact with tower
Tower
ground bar
phn-2182_002v000
May 2011
ODU
Mid-point of tower
Bottom of tower
Ground ring
LPU
External
ground bar
Grounding and lightning protection
. This is especially important
)
Figure 2-3.
Outdoor CAT5e cable: gel-filled,
shielded with copper-plated steel
CAT5e cable: foil or braid screened,
with screened connectors
PTP 250 ground cable
Tower/building ground system
Equipment building
PoE Injector
Master
ground bar
Network
switch
2-15