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4-2 CHAPTER 4: CABLING
Transceiver
Interface Module
Cabling
Requirements
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)
Topology Rules The key 100BASE-T topology rules are illustrated in this section.
Hub to Connected
Workstations
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
®
LinkBuilder FMS 100
100BASE-TX Hub
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100BT STATUS
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ACTIVITY
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CLSII
3C250-TX/Ι
CLSI
PWR
FAN FAIL
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COLLISION