D301271 1013 - FGEN - multi protocol
13-3
General notes
13.1.3 Lightning protection
The cables must be routed in double-grounded metal piping or in reinforced concrete cable ducts.
Signal cables must be protected against overvoltage by varistors or inert-gas filled overvoltage
arrestors. Varistors and overvoltage arrestors must be installed at the point where the cables enter the
building.
13.1.4 Transmission media
For a communication via Ethernet, different transmission media can be used:
coaxial cable
10Base2 (thin coax),
10Base5 (thick coax, yellow cable)
optical fiber (10BaseF)
twisted two-wire cable (10BaseT) with shielding (STP) or without shielding (UTP).
Note
TURCK offers a variety of cable types for fieldbus lines as premoulded or bulk cables with
different connectors.
The ordering information on the available cable types can be taken from the BL20-catalog.
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