Lesson 1

Which fiber-to-the-x topology has amplifiers in the coaxial cable portion of the network?

Additional RF amplifiers may be in the coaxial cable portion of the fiber-to-the-node (FTTN) topology to maintain proper amplitude levels of the RF signal throughout the serving area.

What variations of the star topology are used in PONs?

Centralized split, distributed star, and home-run are variations of the star topology used in PONs.

What does the hybrid fiber/coax (HFC) network architecture offer broadband cable operators?

HFC network architectures have been developed to enable broadband cable operators to make a gradual, or staged, transition to an all fiber-optic cable infrastructure.

What topology is used in passive optical network (PON) architectures?

Passive optical network (PON) architectures use fiber-to-the-premises (FTTP) topologies to make point-to-multipoint (P2MP) connections between the broadband cable headend and the customer premises.

What does the radio frequency over glass (RFoG) architecture provide as envisioned by broadband cable operators?

RFoG was envisioned to provide operators with the time to make a seamless transition from the legacy hybrid fiber/coax (HFC) architecture over to gigabit PON (GPON) or Ethernet PON (EPON).

What are the three categories of fiber-optic cable in a PON?

The fiber-optic cable in a PON is placed in one of three categories, trunk, branch, and drop, to identify the cable's location in the network