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1-2 CHAPTER 1: INTRODUCTION
A larger-scale TR-in-FE configuration appears in Figure 1-2.
Such a system allows both token ring and Ethernet devices
to share the same Fast Ethernet physical wiring infrastructure
and server base. Servers that are to be used for both token
ring and Fast Ethernet clients must be equipped with both
3C395 and Fast Ethernet NICs.
Figure 1-2 Larger-Scale TR-in-FE System
The 3C395 NIC is based on 3Com Fast Ethernet
technology. The NIC has the following features:
■ Parallel Tasking
architecture for high throughput and
low processor utilization
■ Support for full-duplex operation
■ Support for PCI 2.0 or higher specifications
■ 32-bit bus master design
■ Status LEDs
■ Single shielded RJ-45 connector
■ Support for Category 5 unshielded twisted-pair (UTP)
cabling for 100BASE-TX Fast Ethernet networks
1x 2x 3x 4x 5x 6x 7x 8x 9x 10x 11x 12x
100BASE-T4 STATU
S
UN
IT
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PARTITION
LIN
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ACTIVITY
OVERTEM
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COLLISIO
N
PW
R
SuperStack II
Hub 100 T4
SU
P
ER
STA
CK
®
1x 2x 3x 4x 5x 6x 7x 8x 9x 10x 11x 12x
100BASE-T4 STATUS
UN
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PARTITIO
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SuperStack II
Hub 100 T4
SU
PER
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TA
C
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®
®
SUPER
STACK
SuperStack II
LS 2000
100BASE-TX
DOWNLINK
100BASE-TX
®
LinkSwitch
3000
S
U
PER
STA
CK
SuperStack II Switch 2000 TR
with TR-in-FE module
SuperStack II Hub 100
SuperStack II Switch 3000
SuperStack II Hub TR
16/4 Mbps
token ring clients
Ethernet
clients
Token ring
servers
Servers with both
3C395 and Fast Ethernet NICs