Siemens RUGGEDCOM RSG2288, Руководство по установке

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Introduction
1.5.2 Gigabit Ethernet 1000Base-TX Cabling Recommendations
1.5.2 Gigabit Ethernet 1000Base-TX Cabling Recommendations
The IEEE 802.3ab Gigabit Ethernet standard defines 1000 Mbit/s Ethernet
communications over distances of up to 100 m (328 ft) using all 4 pairs in category
5 (or higher) balanced, unshielded twisted-pair cabling. For wiring guidelines,
system designers and integrators should refer to the Telecommunications Industry
Association (TIA) TIA/EIA-568-A wiring standard that characterizes minimum cabling
performance specifications required for proper Gigabit Ethernet operation. For
reliable, error-free data communication, new and pre-existing communication paths
should be verified for TIA/EIA-568-A compliance.
The following table summarizes the relevant cabling standards:
Cabling
Category
1000Base-
TX Compliant
Required Action
< 5 No New wiring infrastructure required.
5 Yes Verify TIA/EIA-568-A compliance.
5e Yes No action required. New installations should be designed with
Category 5e or higher.
6 Yes No action required.
> 6 Yes Connector and wiring standards to be determined.
Follow these recommendations for copper data cabling in high electrical noise
environments:
• Data cable lengths should be as short as possible, preferably 3 m (10
ft) in length. Copper data cables should not be used for inter-building
communications.
• Power and data cables should not be run in parallel for long distances, and
should be installed in separate conduits. Power and data cables should intersect
at 90° angles when necessary to reduce inductive coupling.
• Shielded/screened cabling can be used when required. Care should be taken to
avoid the creation of ground loops with shielded cabling.
1.5.3 Supported Fiber Optic Cables
The following fiber optic cable types are supported under the stated conditions.
Distance (m) Cable Type Wavelength (nm) Modal Bandwidth
(MHz·km)
100Base-FX 1000Base-SX 10GBase-SR
850 200 — 275 33 OM1 (62.5/125)
1300 500 2000 — —
850 500 — 550 82 OM2 (50/125)
1300 500 2000 — —
850 1500 — 550 300 OM3 (50/125)
a
1300 500 2000 — —
OM4 (50/125)
a
850 3500 — 550 400
RUGGEDCOM RSG2288
Installation Manual, 04/2021, C79000-G8976-1045-17
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