Allied Telesis AT FS709FC AT-FS709FC AT-FS709FC Installation Manual page 23

If you need to connect together multiple AT-FS709FC Series switches, you
might again consider constructing a collapsed backbone topology. But rather
than using an AT-FS709FC switch as the backbone switch, you could use a
Fast Ethernet switch that has multiple fiber optic ports and connect the
AT-FS709FC Series switches using the fiber optic ports. Since the fiber optic
port on the AT-FS709FC Series switch has a maximum operating distance of 2
kilometers (1.25 miles), you can connect together switches that are physically
separated by large distances.
An example of this topology is illustrated in Figure 5. Eight AT-FS709FC
Series Ethernet switches have been interconnected using an AT-8216FXL
Fast Ethernet Switch.
FS709FC
1X 2X 3X
POWER
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
AT-FS709FC
FS709FC
1X 2X 3X
POWER
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
AT-FS709FC
FS709FC
1X 2X 3X
POWER
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
AT-FS709FC
FS709FC
1X 2X 3X
POWER
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
AT-FS709FC
4X 5X 6X 7X 8MDI-X 8MDI
9
OR
4X 5X 6X 7X 8MDI
8MDI-X
9
OR
4X 5X 6X 7X 8MDI-X 8MDI
9
OR
4X 5X 6X 7X 8MDI-X 8MDI
9
OR
Figure 5 Collapsed Backbone
AT-FS709FC Series Installation Guide
100BASE-FX PORT ACTIVITY RS-232 STATUS
TERMINAL PORT
LINK / ACTIVITY
FULL DUP / HALF DUP
FAULT
COL
RPS
PWR
RESET
FS709FC
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
FS709FC
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
FS709FC
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
FS709FC
10BASE-T / 100BASE-TX 8 PORT FAST ETHERNET SWITCH WITH 100FX UPLINK
—
Switch Topology
AT-8216FXL
Ethernet Switch
1X 2X 3X 4X 5X 6X 7X 8MDI-X 8MDI
POWER
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
OR
AT-FS709FC
1X 2X 3X 4X 5X 6X 7X 8MDI
POWER 8MDI-X
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
OR
AT-FS709FC
1X 2X 3X 4X 5X 6X 7X 8MDI-X 8MDI
POWER
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
OR
AT-FS709FC
1X 2X 3X 4X 5X 6X 7X 8MDI-X 8MDI
POWER
LINK/ACT
100M
FDX
1 2 3 4 5 6 7 8 9
OR
AT-FS709FC
9
9
9
9
13