Hardware
2--6
1070 072 196-101 (00.06) GB
2.4 Ethernet Interface
The Ethernet is connected via a twisted pair cable with RJ45 connector. The
in IEEE 802.3 defined terminal conditions for 10Base-T are applicable:
D Network topology star
D Max. transmission rate: 10 Mbit/s
D Max. segment length: 100 m
D 100 Ω twisted pair cable
D Link monitoring
D Manchester-coded data transmission
D Connector style: eight-pin RJ-45
The line should have a cross section of 0.08 mm
2
to 0.34 mm
2
, 100 Ω imped-
ance, and 12 to 45 transpositions per meter. For this use, special cables,
called Shielded Twisted Pair (STP), are available:
D STP cable category 3
D STP cable category 4
D STP cable category 5
D STP cable category 6
Increasing category numbers correspond to better cable characteristics.
We recommend the use of STP cables category 5.
Pin Assignment
Pin No. Explanation
1 Tx+
2 Tx--
3 Rx+
4 free
5 free
6 Rx--
7 free
8 free
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