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3com 100 TX Manuel D’Utilisation

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3
M
AKING
 FMS 100-TX H
UB
 
C
ONNECTIONS
This chapter discusses how to use the LinkBuilder FMS 100-TX Hub in 
various network environments. The chapter also discusses how to interpret 
the hub’s LEDs and how to use the power-up disabled option.
Making Network 
Connections
Table 3-1 summarizes the possible schemes for connecting the LinkBuilder 
FMS 100-TX Hub in a 100BASE-T network. These connections are the only 
ones permitted for a Class I device such as the LinkBuilder FMS 100-TX Hub.
Connections that use the 100BASE-TX module are identical to those that use 
an RJ-45 port on the hub’s front panel.
Table 3-1   LinkBuilder FMS 100-TX Hub Network Connections
Hub Connection
Connectors
Cabling Required
Purpose
To node
RJ-45 port 
Transceiver interface module: 
      100BASE-TX 
      100BASE-FX
Straight-through UTP
Straight-through UTP
Fiber
Connects PCs, servers, and other 
network devices directly to the hub
To another hub in the 
stack
Expansion connector
Expansion cable
Connects as many as eight hubs 
to each other to form a single 
logical stack
To Management Unit
Expansion connector
Expansion cable
Connects hub or hub stack to a 
Management Unit
To network backbone
Transceiver interface module:
      100BASE-TX
      100BASE-FX
RJ-45 port
Straight-through or 
cross-over UTP depending 
on device
Fiber
Straight-through or 
cross-over UTP depending 
on device
Connects hub or hub stack to 
network backbone through a 
bridge, router, or switch