Transceiver interface module cabling requirements, 100base-tx: two pairs of category 5 twisted-pair u, 100base-fx: two-strand fiber-optic cabling (62.5/1 – 3Com 100 TX User Manual
Page 40: Topology rules, Hub to connected workstations, Figure4-1 connecting the hub to a workstation, Hub to connected workstations 4-2, Figure 4-1 connecting the hub to a workstation, Activity, Link partition clsii
4-2
C
HAPTER
4: C
ABLING
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
1x
2x
3x
4x
5x
6x
7x
100BT
STATUS
8x
9x
10x
11x
12x
1 2
3 4
5 6
7 8
9 10
11 12
13
ACTIVITY
UNIT
LINK
PARTITION
CLSII
3C250-TX/
Ι
CLSI
PWR
FAN FAIL
OVERTEMP
COLLISION