13.2 Common Network Topologies
515
Fig. 13.5 Basic optical fiber network topologies: a bus, b ring, c star, and d mesh configurations
converts the optical signal on the data bus to its electric baseband counterpart before
any data processing (such as injecting additional data into the signal stream or merely
passing on the received data) is carried out. A passive coupler employs no electronic
elements. It is used passively to tap off a portion of the optical power from the bus.
Examples of these taps are the 2 × 2 couplers described in Chap. 10.
515
Fig. 13.5 Basic optical fiber network topologies: a bus, b ring, c star, and d mesh configurations
converts the optical signal on the data bus to its electric baseband counterpart before
any data processing (such as injecting additional data into the signal stream or merely
passing on the received data) is carried out. A passive coupler employs no electronic
elements. It is used passively to tap off a portion of the optical power from the bus.
Examples of these taps are the 2 × 2 couplers described in Chap. 10.