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Downlink Fiber Connections
Fiber optic technology allows for longer cabling than any other media type.
A 100BASE-BX single-mode fiber link from the switch can connect to a
subscriber up to 10 km away. A CPE is installed inside a subscriber's
premises, so there are no active outside components between the CO and
the end user.
The figure below illustrates a basic switch to CPE connection.
Central Office (CO)
8.7A
8.7A
100BASE-BX full-duplex
single-fiber (WDM) l
(up to 1 km)
0
FTTH Switch
Mgmt
Mgmt
ink to CO
Figure 2-1 Downlink Fiber Connections
Mgmt
Mgmt
Subscriber's Home
CPE
C
E
ONNECTION
10/100BASE-TX UTP
connection to computer
(up to 100 m)
XAMPLES
2-3
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