L45
FTTC, FTTP, OLT and ONT
Cram this first — memory hook
Curb = near the building; premises = at the building. Optical Line Terminal = provider end; Optical Network Terminal = customer termination.
Exam trap
Fiber to the Premises describes access architecture, not a guarantee that every website loads faster than on every Fiber to the Curb subscription.
The slide facts
leaves a copper/Very-high-bit-rate Digital Subscriber Line segment from a street cabinet; reaches the building. The diagram labels provider and customer .
If you have time — extra
Fiber to the Curb () brings fiber near the customer, with the last part commonly using copper and Very-high-bit-rate Digital Subscriber Line (). Fiber to the Premises () brings fiber to the premises. An Optical Line Terminal () is provider-side equipment; an Optical Network Terminal () terminates the optical service at the customer side and presents the appropriate service interfaces. Think of a delivery road: upgrades the route to the neighborhood, while extends the fiber route to the destination. The remaining copper segment can introduce distance/noise limitations. However, do not take the slide's faster/lower-latency wording as a universal guarantee: purchased service rate, congestion, routing and equipment also affect measured performance. Exact curb/cabinet terminology varies by region/provider.
Walkthrough
Follow the physical route from provider to premises, mark where fiber stops, identify any remaining copper segment, and locate provider versus customer termination equipment.