30
Appendix B
100B
ASE
-TX F
AST
E
THERNET
GUIDELINES
The following general guidelines apply to 100Base-TX Fast Ether-
net networks:
■
The maximum length of a 100Base-TX cable segment is 330
feet (100 meters).
■
The maximum number of end nodes on a 100Base-TX cable
segment is one.
■
The required cable type is 2-pair EIA/TIA Categor y 5 UTP.
100B
ASE
-TX
HUB
CLASSIFICATIONS
The 100Base-TX specification suppor ts two different classifica-
tions of hubs, Class I and Class II.
■
A 100Base-TX network using Class I hubs does not allow
more than one hub (repeater) between two end node devices.
If more than one Class I hub is installed on a network, then a
bridge, router, or switch is required between each of the
hubs.
■
A 100Base-TX network using Class II hubs allows two hubs to
be interconnected directly without the need for a bridge,
router, or switch. If there are more than two Class II hubs
installed on a network, then a bridge, router, or switch is
required between ever y two sets of hubs. Farallon’s Fast
Starlet hubs are Class II hubs.
a.Merlin100PC Book Page 30 Thursday, April 2, 1998 12:01 AM
