User`s guide

INSTALLATION
XSRING+ SHDSL switch User’s guide ref 9018809-01 Page 21
12 Protecting the shdsl switch from lightning
if the line is exposed to lightning, we advise to use an surge arrester at each end of the line and to
connect the shield of the cable to the earth.
Line cable shield :
If the line is shielded, the shield must be connected to the earth; only at one end if it is not interrupted
along the line.