Edge-Core ES3526S, Installation Manual

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2-1
Chapter 2: Network Planning
Fiber-To-The-Home (FTTH)
Fiber-To-The-Home (FTTH) has always been an attractive option for Internet
access. It has all the benefits of optical fiber. It provides a future-proof network, in
that you do not have to go through the hassles of upgrading from ADSL to XDSL, or
digital co-ax to digital wireless. It does not have to struggle with electromagnetic
interference problems, and with no active “outside-plant” components, it offers the
highest reliability. Moreover, it does not require electric power and is immune to
lightning and other transients. These properties of fiber lead to the lowest possible
power and operational costs, such as maintenance, provisioning and facilities
planning.
The ES3526S and Media Converter provide an ideal FTTH system, allowing a
service provider to extend an Ethernet connection over optical fiber directly to a
subscriber. The ES3526S contains 24 100BASE-FX full-duplex single-fiber
single-mode cable connections that run from the service provider’s central office
(CO) directly to Media Converters installed at subscriber premises. Each
single-mode fiber connection can be run up to a distance of 15 km from the CO. The
switch also provides two 1000BASE-T/SFP uplink ports for connections to other
switches or routers at the CO.
The Media Converter is a single-channel fiber-to-copper CPE (Customer Premises
Equipment) housed in a compact unit. The CPE connects to the fiber cable from the
CO and provides one standard 10/100BASE-TX RJ-45 Ethernet port for connecting
to a subscriber’s PC, switch, or other network device using twisted-pair cable.
Application Examples
The ES3526S switch is designed to offer a cost-effective solution for FTTH,
providing downlink fiber connections to subscribers and high-bandwidth twisted-pair
uplink connections to core switches and routers at the CO. A dedicated
management port provides secure management access to the switch from the CO’s
network.
Some typical connection configurations are described in the following pages.