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Chapter 1: Product Overview
Introduction to Fast Ethernet
Standard 10 Mbits/s Ethernet has served well for past generations of 286
and 386 machines performing simple file transfers. However, with the
inevitable growth in corporate network size and the introduction of fully-
functional 32-bit PC architectures, and operating systems running complex
applications, 10 Mbits/s Ethernet has become a serious bottleneck.
With the recent flood of choices for upgrading media bandwidth, 100
Mbits/s Fast Ethernet has become the most popular because of its low cost,
compatibility with existing Ethernet applications, and the fact that it can
run on top of an installed base of twisted-pair cabling. Fast Ethernet can be
easily integrated into an existing 10 Mbits/s Ethernet environment with no
need for protocol translation or changes to network software.
HP ProCurve 100Base-T Hub 8
The HP J4091A ProCurve 100Base-T Hub 8 is an 8-port Class II repeater.
With this type of hub, you can connect computers and other devices
together in an twisted-pair cable network. This hub is compliant with the
IEEE 802.3u 100Base-T standard.
Basic Features
Transmits data at 100 Mbits/s
Conforms to the IEEE 802.3u Class II repeater specification for
100Base-T
Provides 8 RJ-45 100Base-T ports (using MDI-X wiring)
Port 8 can serve as an MDI-X port (for connection to network devices
such as workstations or servers) or as an MDI daisy-chain port (for
connection to network devices such as hubs or switches), eliminating the
need for crossover cables
Supports 100Ω Category 5 shielded or unshielded cable (STP or UTP)
Product Overview
1-1
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