
Passive Components for Electrical Networks
4-10
SIMATIC NET Tw isted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
Design
The FastConnect (FC) twisted-pair cable is a shielded cable with a symmetrical
radial design and 100 Ω characteristic impedance. The cable consists of 4
conductors arranged as a star quad.
The FC TP Standard Cable has solid cores, the FC TP Trailing Cable and the FC
TP Marine Cable have stranded cores.
Surrounding braided mesh shield
(tin-plated copper braid)
Plastic laminated
Aluminum foil
Inner sheath
Dummy cores
Cores
(star quad)
Outer s heath
Dummy core
Wire
Plastic foil
Aluminum foil
Inner sheath
Surrounding braided shield
Outer s heath
SIEMENS SIMATIC NET INDUSTRIAL ETHERNET FC TP
Plastic foil
Figure 4-3 Cross Section of the FastConnect (FC) Twisted -Pair Cable
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