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MODULAR SUNWAY TG
TE OD
INSTALLATION GUIDE
82/
139
Rev. 03
– 01/06//2018
The following figure illustrates the layout of the pairs in a cat. 5 UTP cable and the standard colour
arrangement used for Straight-Through cables.
Figure 49: Layout of pairs in cat. 5 UTP cable
The direct point-to-point connections is carried out using a Cross-Over TIA/EIA-568-B cat. 5 cable. This type
of cable crosses over the pairs so that the TD+/TD- pair on one side corresponds to the RD+/RD- pair on
the other and vice versa.
The following table illustrates the colour matching on the connector pins for the Cross-Over cable and the
cross-over diagram of the two pairs used by the 100Base-TX o 10Base-T connection.
Figure 50: EIA/TIA 568 standard patch cable, UTP/STP cat.5
Figure 51: EIA/TIA 568 cross-over cable, UTP/STP cat.5
NOTE
The maximum length of the UTP cat. 5 cable envisaged by Standard IEEE 802 (calculated on
the maximum transit time allowed by the protocol) is 100 m.
Use only and exclusively certified LAN cables, cat.5 UTP or higher, for Ethernet cabling. Unless
otherwise dictated by length or particular cabling needs, use commercial cables with connectors.
In the event of Ethernet communication problems, please consult section
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