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Chapter 2
Cabling Requirement and Site Preparation
Due to the scaled-down MAC address slot time, 100Base-T (-TX,
-T4, -FX) has different topology rules than that of 10Base-T.
Figure Chapter
100Base-T.
The key cabling topology rules are:
•
The maximum UTP cable length is 100 meters from an
end-station to a shared-access 100Base-TX hub.
•
The maximum number of repeater counts (hops) is two in an
un-bridged all-UTP topology
•
In a 2-repeater count, all-UTP topology, the maximum
cabling length is 205 meters for end-station / repeater /
repeater / end-station connections.
•
In a single-repeater count UTP topology, a fiber cable
(100Base-FX) up to 205 meters can be used to connect
between a repeater and a backbone switch.
•
A 400-meter half-duplex fiber cable is allowed for a MAC to
MAC connection (switch-to-switch).
The TE-100/S14 Switch fits into the 100Base-T cabling
architecture as an UTP end-station connecting to a 100Base-TX
cabling network. Therefore, the 100m UTP end-station
connection distance should be the only limitation in configuring
1
A single or a stacked 100Mbps hub is counted as one repeater. A
switch or a 10Base-T hub is not counted as a repeater, and is treated as
an end-station when applying the topology rules.
Installation
2 -2
n Page 13 illustrates the topology rules of
1
.
11
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