SMC Networks SMC7824M/FSW manual Chapter Network Planning, Fiber-To-The-Home FTTH

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 by avoiding the hassle of having to upgrade from ADSL to XDSL, or digital coax to digital wireless. It is highly reliable because it eliminates all of the problems with electromagnetic interference. Moreover, it 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.

This switch and a standard CPE (Customer Premises Equipment) form the key components of an ideal FTTH system, allowing a service provider to easily extend an Ethernet connection over optical fiber directly to a subscriber. This switch contains 24 100BASE-BX full-duplex single-fiber single-mode cable connections that run from the service provider’s central office (CO) directly to the subscriber’s CPE. Each single-mode fiber connection can be run up to a distance of 10 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 SFP ports allow the switch to be located up to 70 km from the CO using 1000BASE-ZX transceivers, giving you the option of placing the switch either in the CO or anywhere along the path between the CO and the subscriber.

A CPE is a single-channel fiber-to-copper conversion 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 residential gateway, PC, switch, or other network device using twisted-pair

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