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Allied Telesis FastSwitch8 User Manual

Page 18

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Technical Specifications

12

Recommended Cables and Cable Specifications

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.

Table 3 provides an overview of IEEE 802.3 and 802.3u cabling specifications
for 10Base-T and 100Base-TX network configurations using twisted-pair cable.

Table 3 IEEE 802.3 and 802.3u Cabling Specifications

1

1. Cabling must be in accordance with the TIA/EIA 568A standards.

10Base-T

100Base-T

Media

Unshielded or Shielded Twisted
Pair Category 3 or better

Unshielded or Shielded Twisted
Pair Category 5 or better

Maximum Segment
Length

100 m (328 ft)

100 m (328 ft)

Topology

Star, Tree

Star, Tree

External Devices

Network Adapter Card, Repeater,
Switch, or Router

Network Adapter Card,
Repeater, Switch, or Router