Clear-com HX System Frames User Manual download pdf (Page 32)

6.1.1 Cabling standards

The term category 5 (CAT5) refers to a communications cable standard that calls out

transmission characteristics of twisted-pair cables for data communication use. For each

increasing category (CAT) number the guaranteed bandwidth for data communication

purposes increases.

For the 4-pair wiring scheme between the frame panels, Eclipse HX uses the AT&T T568B

wiring standard for data cables. Cables for use with Ethernet 10-BASE-T are of this type.

Cables are available in solid or stranded wire in either #24 or #26 AWG.

Important note:

There are at least five different wiring standards that use the RJ-45 connector. Although

they look identical, many pre-made cables and utility items, like couplers, will not work

properly with your Eclipse HX system. It is essential to know what wiring standard is used in

any accessories.

Clear-Com recommends:

• The use of shielded CAT5 twisted cable with RJ-45 connectors on either end.

However, there are various methods available to deliver these cables from one place

to another.

• The use of shielded cables throughout the installation for EMC conformance.

Unshielded cables can be used but in this case Clear-Com does not guarantee the

crosstalk and noise figures.

Long runs with flat cable are not recommended. The data and audio pairs are not twisted

which means that the crosstalk within the cable is high.

Cabling standard

Description

T568B

A mature, well supported standard. Advantages include:

• Fast easy termination of cables.

• The availability of a vast array of wiring adapters and

patching systems, permitting greater versatility when wiring

Eclipse HX devices.

• RJ-45 connectors can be connected to hardware quickly

and easily.

T568A

T568A cables differ from T568B cables only in terms of the

color of the insulation used on pairs 2 and 3.

If you are not removing the ends from a pre-made cable, then

this difference should not cause any issues.

However, if the ends are removed from a pre-made cable (to

shorten the cable or to punch the cable onto blocks), you

should take account of the fact that the insulation colors for

pairs 2 and 3 may differ.

Table 7: T568B and T568A cabling standards

Eclipse HX Matrix Frame Installation Guide

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 85 86

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