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Wirnet iBTS
Document title : Installation and
Maintenance Manual
Version : 2.0
Author : SNI
Date : 04/12/2018
Classification
This document is the strict property of Kerlink and shall not be either copied nor sent without express
written authorization of Kerlink
Internal Use
Kerlink m2m technologies reserved rights
Confidential
Kerlink – 1 rue Jacqueline Auriol – 35235 THORIGNÉ-FOUILLARD
Page 204 / 221
Strict confidential
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:
Figure 159 : Installation with recommended lighting protections