User guide

PTP 800 Series User Guide Grounding and lightning protection
phn-2513_004v000 (Oct 2012)
2-11
Protection requirements for a mast or tower installation
Applies to ODU deployments only.
For equipment (ODU or antenna) mounted on a metal tower or mast, ensure that the
installation meets the following requirements:
• The equipment is lower than the top of the tower or its lightning terminal and finial.
• The metal tower or mast is correctly grounded.
• A grounding kit is installed at the first point of contact between the IF cable and the
tower, near the top.
• A grounding kit is installed at the bottom of the tower, near the vertical to horizontal
transition point. This grounding kit is bonded to the tower or tower ground bus bar
(TGB) if installed.
• If the tower is greater than 61 m (200 ft) in height, an additional grounding kit is
installed at the tower midpoint. Additional ground kits are installed as necessary to
reduce the distance between ground kits to 61 m (200 ft) or less.
• In high lightning prone geographical areas, additional ground kits are installed at
spacing between 15 to 22 m (50 to 75 ft
). This is especially important on towers taller
than 45 m (150 ft).