Allied-telesis AT-FS704 Manuel d'utilisateur télécharger pdf (Page 31)

AT-FS704 Installation Guide

15

100Base-TX Cable

There are various grades of voice-quality and data-quality cables available.

These can appear to be similar externally, although their high-speed data

transmission characteristics are radically different. The identification problem

is made worse by some suppliers selling voice-quality cables as data-quality

cables.

If voice-quality cables are used in a 100Base-TX network system, data

movement may be slow, collision-prone or non-existent. In addition, interface

LEDs will usually indicate a valid link in such cases.

Category 5 cabling is required for 100Base-TX connections. Using any other

category for a 100Base-TX connection may result in high error rates, or may

not have the capacity to transmit data.

100Base-TX Connector Pinouts

Straight-through Cable Crossover Cable

4#7;. 7;.#4

5;0#99#5;0

7;0#5

6#5;. 5;.#6

5#7;0

4#7;. 7;.#4

5;0#99#5;0

7;0#5

6#5;. 5;.#6

5#7;0

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