Contemporary-control-systems EIDX Managed Automation Switches Installation Guid Manual de usuario descargar pdf (Pagina 5)

TD071105-0IA

Cabling Considerations

When attaching signal cables to the EIDX, Table 1 should be considered.

Medium

Signalling and

Data Rate

Minimum Required

Cable

Maximum Segment

Distance

Copper

10BASE-T

10 Mbps

Category 3 UTP

100 m (328 ft)

Copper

100BASE-TX

100 Mbps

Category 5 UTP

100 m (328 ft)

Fibre

100BASE-FX

100 Mbps

1300 nm, multimode

50/125 or 62.5/125 µm

Full-Duplex :

2 km (6562 ft)

Half-Duplex :

412 m (1352 ft)

Fibre

100BASE-FX

100 Mbps

1300 nm, single-mode

Full-Duplex :

15 km (49213 ft)

Half-Duplex :

412 m (1352 ft)

Table 1 — Cabling Considerations

Observe in Table 1 that segment distance is very limited when using copper

media — regardless of data rate. Although 10BASE-T links can successfully

use Category 3, 4 or 5 cable — 100BASE-TX segments must use Category 5.

A popular choice for improved distance is multimode fibre — which also gives

good electromagnetic noise immunity and optimum protection from lightning

strikes. Considerable distance can be achieved in full-duplex mode — and the

greatest distance can be realized in full-duplex mode with single-mode fibre.

Note that half-duplex operation yields a modest, fixed distance which does not

vary with the type of fibre in use. This is because half-duplex mode is limited

by the collision domain — irrespective of the length and type of fibre.

EIDX switches offer three types of field connectors. Copper ports accept RJ-45

modular plugs. Two choices of fibre connectors are available: ST and SC.

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