Question: The table below shows the devices available to design a GPON network to provide subscribers with 17 FTTH service and 15 corporate VPN services respectively.

The table below shows the devices available to design a GPON network to provide subscribers with 17 FTTH service and 15 corporate VPN services respectively. In the design the first splitter is 18 Km from the OLT, second splitter 40 Km from the OLT and the third splitter 9 Km from the nearest splitter to the OLT. Node/device Quantity OLT 1 1:2 splitter 1 1:16 splitter 2 ODF 1 ODN 1 ONT 32 Type of optical fibre ? a. Design the GPON. (2 marks) b. Explain in detail the downstream and upstream transmission of information or data. (4 marks) c. Predict your own transmit power, safety margin, the type of optical fiber and estimate the optical link power budget. (6 marks) d. Clients connected to the third splitter cant have access to the services they subscribed. Explain in detail the investigation process using OTDR. (4 marks) e. Based on your network, if there is a break between the first and third splitter list the affected customers. Explain how you will restore services to all the affected subscribers.

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