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PROTOTIPO SPERIMENTALE DI RETE MAN OTTICA AD ANELLO ...

PROTOTIPO SPERIMENTALE DI RETE MAN OTTICA AD ANELLO ...

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Architettura parte trasmissiva del nodo<br />

Node<br />

Controller<br />

(programmable<br />

logic inside a<br />

PC)<br />

TTL<br />

levels<br />

clock<br />

generator<br />

(for the slot)<br />

TTL<br />

levels<br />

RingO - CNR, Roma, 18 giugno 2001<br />

Analog<br />

levels<br />

Laser<br />

Driver<br />

Laser<br />

Driver<br />

Laser<br />

Driver<br />

Laser<br />

Driver<br />

2.5 Gb/s<br />

pattern<br />

generator<br />

ECL<br />

levels<br />

L<br />

A<br />

S<br />

E<br />

R<br />

A<br />

R<br />

R<br />

A<br />

Y<br />

λ 1<br />

λ 2<br />

λ 3<br />

λ 4<br />

Modulator<br />

Driver<br />

Optical<br />

Coupler<br />

4·1<br />

Optical Communications Group<br />

Politecnico di Torino<br />

External<br />

Modulato<br />

r<br />

Fiber<br />

Out<br />

16

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