Chapter 5: Installation
226
Caution
Do not attach grounding cables to the ODU mounting bracket bolts, as this
arrangement will not provide full protection.
Basic requirement s
The following basic protection requirements must be implemented:
l
ODU must be in ‘Zone B’ (see Lightning protection zones).
l
ODU must be grounded to the supporting structure.
l
A surge suppression unit must be installed on the outside of the building.
l
The distance between the ODU and Gigabit Surge Suppressor should be kept to a minimum.
l
The drop cable must not be laid alongside a lightning air terminal.
l
All grounding cables must be a minimum size of 10 mm
2
csa (8AWG), preferably 16 mm
2
csa
(6AWG), or 25 mm
2
csa (4AWG).
Prot ect ion requirement s for a w all inst allat ion
If the ODU is to be mounted on the wall of a building, then in addition to the general protection
requirements (above), the following requirements must be observed:
l
The equipment must be lower than the top of the building or its lightning air terminal.
l
The building must be correctly grounded.
Schematic examples of wall installations are shown in Grounding and lightning protection on wall.
Summary of Contents for PMP 450 Series
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