Allied Telesis AT-FS706E FC User Manual
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If you have more than three AT-FS705E FC or AT-FS706E FC switches that
you want to connect together, then you might use an 100Base Ethernet switch
that has multiple fiber optic ports to act as a backbone switch. This switch will
function as the connection focal point for all the AT-FS705E FC and AT-
FS706E FC switches in your network. This is often referred to as a collapsed
backbone. An example of this topology is illustrated in Figure 6. Five
AT-FS705 Ethernet Switches have been interconnected using an AT-8216FXL
Fast Ethernet Switch.
Figure 6 Collapsed Backbone Topology
1 2 3 4
RX
TX
5
DC In
3.3V
1 2 3 4
RX
TX
5
DC In
3.3V
1 2 3 4
RX
TX
5
DC In
3.3V
LINK /
ACTIVITY
FULL DUP /
HALF DUP
COL
100BASE-FX
STATUS
RESET
FAULT
RPS
PWR
RS-232
TERMINAL PORT
PORT ACTIVITY
1 2 3 4
RX
TX
5
DC In
3.3V
5
4
3
2
1
6
7
8
5
4
3
2
1
6
7
8
1 2 3 4
RX
TX
5
DC In
3.3V
100 Mbps (Twisted Pair)
10 Mbps
100 Mbps (Fiber Optic)
AT-8216FXL
AT-FS705E FC
AT-FS705E FC
Ethernet Hubs
AT-FS705E FC
AT-FS705E FC
AT-FS705E FC
Ethernet Switch