ADC Megabit Modem 700F Manual de usuario descargar pdf (Pagina 6)

6

Figure 1 - PON Network

Splitter

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Optical Line

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Drop Cables

by Rodney Wise

Director, Engineering Services

Walker and Associates

Copper vs. Fiber, DSL vs. PON, Active vs.

PON, Centralized vs. Distributed, can’t we

all just get along? We’ve gone so far with

our competitive nature that VERSUS has

its own television channel! In our business,

there will always be debate about which

technology, architecture, medium or strategy

is best. The debate around DSL and FTTx

deployments are usually cost tradeoffs.

The evolution of DSL technology and pricing

has helped copper outlive all expectations.

Who would have thought in 1989 when

BellSouth was deploying its fiber to the home

vision in Heathrow, Florida that seventeen

years later copper would still be a viable

solution for voice, video and data services?

However, the ever-expanding world market’s

demand for copper in providing services

and in manufacturing is pushing copper

to precious metal territory. New copper

deployments should be rare. Wouldn’t that be

a nice business plan to write? Dear Business

Development Manager, I am replacing my

copper with fiber, increasing my service

delivery capability, and

adding 10% to

the bottom

line by

scrapping the copper, is that ok? You betcha!

That is a bit farfetched but everyone should

dream occasionally. In contrast, sand is not

as precious so scrapping our PON fiber for

the raw material is not really

dream worthy.

Ethernet Routing

Switch

OSP Enclosure

Drop Cables

Feeder Cable

Gatewa

y

Gatewa

y

Gatewa

y

Ethernet Routing

Switch

Fi

g

ure 2: Active Network

The Wise Guy*

*The

WISE GUY - As

Director of Engineering

Services, Rodney Wise confronts a

variety of technical questions on a daily

basis. His broad background provides him

a real-world perspective of challenges and

opportunities telecom engineers and project

planners face in the eld. This experience, along

with continual training from the manufacturing

community and a staff of equally talented

Sales Engineers provide customers with a

wealth of pre and post-sales engineering

support. The Wise Guy is a regular

feature in The Skinny Wire and

on our website.

Figure 2 - Active Network

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