Allied Telesis AT-FS238b/2 - Manual (Page 15)

AT-FS238a/x and AT-FS238b/x Series Installation Guide
5
Since the fiber optic port on the bridging converters is IEEE 802-3ah-
compliant, these devices can also be used by voice and data service providers
to provide service to the home. This type of topology is referred to as Fiber-to-
the-Home. In Figure 5, an IEEE 802.3ah-compliant device at the provider’s
central office sends data to an AT-FS238a/2 converter located at a home on a
single fiber strand. The converter then transmits the data to a router gateway
located inside the home via the twisted pair port. The router gateway, in turn,
provides communications to a phone, a fax machine, and a computer for
Internet access.
Figure 5 Fiber-to-the-Home Topology
Note
The fiber optic ports on the AT-FS238a/x and AT-FS238b/x Series
converters are IEEE 802.3ah-compliant and must be connected to a
device that meets the same compliant requirement.
SINGLE MODE 1310TX/1550RX
FS238a/2
Bridging Converter
Connected to an
IEEE 802.3ah-compliant
device at provider's
central office
= Twisted Pair Cable
= Single Fiber Strand
Router Gateway
40 km (24.8 mi)