User Manual

Infinet Wireless: Technical Documentation – Quanta 5 / Quanta 6
Installation– 53
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General recommendations for installations of lightning protection units:
Install the lightning protection unit on both ends of the cable to protect both the outdoor and the indoor
unit.The purpose of theLPUat the top is to protect theODUfrom a surge of lightning strike which can hit
the long FTP cablerun along the height of the pole or on the roof of the building.The purpose of theLPUat
the bottom is to protect theIDUand customer equipment.
Use the lightning protection unit to protect all circuits for signal transmission and power supply (video,
audio, management signals, Ethernet, etc.)
Regularly (especially before the periods with high thunderstorm activity) check the integrity of lightning
protection units, grounding elements andbonding conductors.
The ports of the AUX-ODU-LPU-L device are symmetrical, i.e. the correspondence of ports position to the
external unit and the power supply does not matter.
Make sure to install the twoLPUdevices as shown in the scheme below.
13 Figure - Connection scheme
6.4.2.1 AUX-ODU-LPU-L Mounting
AUX-ODU-LPU-Lis installed on a mast, using clamp. Attach the grounding cable (min cross-section 2.5 mm
2
) to the
case, using grounding bolt.
CAUTION
Please note grounding cables should not be connected to the mast. All devices must use separate
grounding cable that should be connected to the grounding circuit. The best scenario is when grounding
cables are lined parallel to the Ethernet cable.
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