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d.c. outdoor box
remote
radio head / unit
telecommunication –
information technology
system
distribution network operator
(DNO) 230/400 V
base station (radio base station)
power supply unit
optical
fibre cable
baseband
48 v d.c. unit (BBU)
feeder cable
mast
Figure 9.17.3 Remote radio head / unit and radio base station (RBS) in case of ground-mounted masts
www.dehn-international.com LIGHTNING PROTECTION GUIDE 357