Download Siemens SIMATIC NET Operating instructions

Passive Components for Electrical Networks
4.5.1
Preassembled Industrial Twisted Pair Cables
General
Preassembled Industrial Twisted Pair cables use the sturdy 9 or 15-pin sub-D
connectors on an ITP standard cable. These cables have the additional “ITP”
marking. These cables require DTEs and network components with Industrial
Twisted Pair ports.
The connection between an active network component and the DTE is established
with an Industrial Twisted Pair cable with a 9-pin (network component end) and a
15-pin sub-D connector at the DTE end.
To connect two active network components, an Industrial Twisted Pair cable with
two 9-pin sub-D connectors is used. The two wire pairs are crossed over. Crossed
wires have the additional “XP” marking (crossed pairs).
To connect two DTEs to each other, an Industrial Twisted Pair cable with two
15-pin sub-D connectors is used. The wire pairs are again crossed over and this
cable also has the additional “XP” marking.
4-20
SIMATIC NET Twisted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02