100Base-Tx Cable; 100Base-Tx Connector Pinouts; Straight-Through Cable Crossover Cable - Allied Telesyn AT-FS704 Guia De Instalacion

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
4#7;. 7;.#4
5#7;0 7;0#5
6#5;. 5;.#6
9#5;0 5;0#9
Crossover Cable
4#7;. 7;.#4
5#7;0 7;0#5
6#5;. 5;.#6
9#5;0 5;0#9
AT-FS704 Installation Guide
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