Kerlink Wirnet iBTS Installation And Maintenance Manual page 204

4.7 Lighting protections
In its standard configuration, the Wirnet iBTS is provided with optimal internal surge
protections. In harsh environment, additional protections may be used to improve lightning
immunity. The Wirnet iBTS gateways are not warranted by KERLINK in case of deterioration
due to lighting. KERLINK recommends adding surge protections in high keraunic levels areas
and on high points.
The lighting surge protection must be completed on three interfaces to be efficient:
-
Mains supply (or DC supply)
-
Ethernet (PoE) cable
-
RF coaxial cable (antenna interfaces)
Another key parameter for an efficient lighting surge protection is "earthing". The earthing
connection insures that the lighting surge is driven to the ground properly.
Earthing of the installation is mandatory for:
-
indoor installation (mains supply, PoE injector)
-
outdoor installation (tower, pole, ...)
The following figure describes the lighting protections that are required in a high keraunic
area configuration:
Classification
Internal Use
Confidential
Strict confidential
Figure 159 : Installation with recommended lighting protections
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Kerlink – 1 rue Jacqueline Auriol – 35235 THORIGNÉ-FOUILLARD
Wirnet iBTS
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Document title : Installation and
Maintenance Manual
Version : 2.0
Author : SNI
Date : 04/12/2018
Page 204 / 221