KTI Networks 10BASE-T - Manual (Page 8)

Dual-speed Hub Technology
Dual-speed hub is designed to support connections with different
speeds in the same hub. It makes a network planning simpler, espe-
cially when an environment is containing 10Mbps Ethernet and
100Mbps Fast Ethernet technologies. It also allows a smooth mi-
gration from an Ethernet network to a Fast Ethernet network.
A dual-speed hub is actually equipped with one 10Mbps repeater
and one 100Mbps repeater in one hub unit. Each repeater serves
one shared network segment. The repeater receives transmissions
from any of its ports and retransmits them to all its other ports. The
TP port of the hub can auto-sense the speed (10M or 100M) of its
connection and switch to either 10Mbps shared segment or 100Mbps
shared segment automatically. The internal design of a dual-speed
hub is illustrated as follows:
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