3
Protect Your Installation
Lightning Protection Zones
When the ODU is installed on a mast, tower or wall, it may be in one of two possible lightning
protection zones:
•
Zone A: In this zone a direct lighting strike is possible. Do not mount the ODU in this zone.
•
Zone B: In this zone, direct EMD (Lightning) effects are still possible, but mounting in this
zone significantly reduces the possibility of a direct strike. Mount the ODU in this zone.
Zone A
Zone A
Recommended
NOT Recommended
Zone B
Zone B
Zone A
Finial
Recommended
Zone B
The following protection requirements are mandatory:
•
The ODU must be earthed
•
Screened CAT 5e cable must be used
•
Surge arrestor of type PTP-LPU must be installed at building entry
•
There must be an earth connection at building entry
More information:
PTP 300 Series User Guide
or
PTP 500 Series User Guide
Section:
“Lightning Protection”
4Gon www.4Gon.co.uk [email protected] Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
