3com 100 TX Manual De Usuario

C

HAPTER

 4: C

ABLING

The two transceiver interface modules provide downlink connectivity to 
another hub or to a bridge, router, or switch. For transceiver interface 
module connections, the hub supports 100BASE-T functionality using the 
following media specifications:

■

100BASE-TX: two pairs of Category 5 twisted-pair UTP wire

■

100BASE-FX: two-strand fiber-optic cabling (62.5/125 

µ

 multimode cable)

The key 100BASE-T topology rules are illustrated in this section.

The maximum UTP cable length between the hub and connected 
workstations is 100 meters. (See Figure 4-1.)

Figure 4-1   Connecting the Hub to a Workstation

Straight-through UTP cable
(100 meters maximum)

1 . . . . . . .8

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3C250-TX/

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