Technical data

42 Theoretical and general applications www.westermo.com
Telecom modems and interference
When telecom modems are used within industry you must remember that these are
extra sensitive to interference, despite isolation and signal codes. Communication can
be disturbed and component faults can result when the cable is not protected careful-
ly. Cabling for telecommunications must be separated from process cabling.
Combination protection can provide increased protection in harsh industrial environ-
ments.
Fibre cable
Data transfer using fibre cable in this context is completely insensitive to electrical
interference. However, communications over fibre cable can be affected by the cable
type and splice attenuation.
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