H35-210_V2.5 · Question #391
In the downstream direction of the GPON, all ONUs receive the same data because the broadcast mode is adopted. In the upstream direction, because the same optical splitter is used, the data of a…
The correct answer is B. FALSE. Downstream Transmission: In GPON, downstream data is broadcast to all ONUs. However, each ONU only processes the data intended for it, identified by a unique identifier (ONU ID). Upstream Transmission: In the upstream direction, GPON uses TDMA (Time Division Multiple Access) to…
Question
In the downstream direction of the GPON, all ONUs receive the same data because the broadcast mode is adopted. In the upstream direction, because the same optical splitter is used, the data of a branch fiber can also be received by another branch fiber.
Options
- ATRUE
- BFALSE
How the community answered
(22 responses)- A23% (5)
- B77% (17)
Explanation
Downstream Transmission: In GPON, downstream data is broadcast to all ONUs. However, each ONU only processes the data intended for it, identified by a unique identifier (ONU ID). Upstream Transmission: In the upstream direction, GPON uses TDMA (Time Division Multiple Access) to prevent collisions. Each ONU transmits data during its allocated time slot, and the optical splitter does not allow data from one branch fiber to interfere with another. The second part of the statement is incorrect. Data from one branch fiber cannot be received by another branch fiber due to the TDMA mechanism and the design of the passive optical splitter. Thus, the correct answer is B.
Topics
Community Discussion
No community discussion yet for this question.