Siemens SIMATIC NET Betriebsanleitung Seite 73

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Passive Components for Electrical Networks
4-15
SIMATIC NET Tw isted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
4.4 Twisted -Pair Cord
General
The TP Cord is used to attach DTEs to the Industrial Ethernet FC cabling system.
It is intended for use in an environment with low levels of noise, such as in an
office or within wiring closets.
To distinguish between crossover and straight through cables, the RJ-45
connectors are color-coded. On crossover cables, the RJ-45 connectors are red at
both ends, on straight through cables, the RJ-45 connectors are green at both
ends.
A maximum of 10 m of twisted-pair cord can be used between two devices. With
structured cabling using two TP Cord cables, the two patch cables together must
not exceed this length.
Adapter cables are used to connect devices with a sub-D port to devices with an
RJ-45 port.
The TP port converter is used to connect a DTE with an RJ-45 interface to the
Industrial Twisted Pair cabling system.
Design
The cable consists of two pairs of wires each pair twisted together (PIMPF
structure). Each pair is shielded with an aluminum foil. The outer shield is a
tin-plated copper braid mesh. The outer sheath is PVC.
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