Installation guide

14
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
RXTX
5
DC In
3.3V
1 2
3 4
RXTX
5
DC In
3.3V
1 2
3 4
RXTX
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
RXTX
5
DC In
3.3V
54
3
2
1
6
7
8
54
3
2
1
6
7
8
1 2
3 4
RXTX
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