Fttx fiber-count-planning-calculation
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The document outlines the calculation and planning necessary for deploying FTTX (Fiber to the X) networks using GPON (Gigabit Passive Optical Network). It discusses the types of customer requirements, bandwidth capacity per customer, and the engineering considerations needed for central office equipment and fiber distribution. Key elements include understanding the need for different splitter configurations and addressing residential versus commercial customer needs effectively.
Fttx fiber-count-planning-calculation
- 1. GK2345@GMAIL.COM Formula for FTTX – GPON Fiber count calculation 1 Engineers make the world
- 2. 2 • Understanding FTTX end to end connection • Illustration of different type of customer requirement • A. Residential - GPON • B. Commercial - GPON • C. Un-split and partial split • Cable count planning equation Agenda
- 3. 3 FTTX / GPON overview Gigabyte Passive Optical Network OLT ONU Optical Line Terminal Optical Network Unit Passive Optical Splitter ONT ONT Joint Closure 1:32 SPL Optical Network Terminal ONT 1:2 SPL ONT Un-SPlit USP Partial Split
- 4. 4 OLT – Optical Line Terminal – Central Office equipment. ONT – Optical Network Terminal for individual customer premises. ONU – Optical Network Unit – for cluster of customers served by copper as the last mile. USP – Un Split / Partial split. Legend GPON - Calculation Assume 1:32 split ratio To achieve 100 Mbps per customer, only 25 customer are connected per PON For 1 PON download speed 2.5 Gbps = 2500 Mbps For 1 Customer download speed = 2500 Mbps / 25 = 100 Mbps
- 5. 5 Case study M T R M T R Residential Customer Commercial Customer1 2 For residential customer 100 Mbps is the maximum available bandwidth. For commercial customer the requirement granularity cannot be decided during the survey stage as every commercial customer will have specific requirement. To have clear understanding and to serve 1:X GPON and UnSPlit GPON, we have to understand the customer requirement in IT, telecom, application and capacity level. To plan and address the general requirement, we have to assume every individual customer is connected or ready to connect via patch cord installation during provisioning.
- 6. 6 GPON capacity Engineering Central Office MTR FTBOSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Building where there is only 8 customers available
- 7. 7 GPON capacity Engineering Central Office MTR FTBOSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Building where there is only 16 customers available
- 8. 8 GPON capacity Engineering Central Office MTR FTBOSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Building where there is only 32 customers available
- 9. 9 GPON capacity Engineering Central Office MTR FTB OSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Building where there is any integral number of customer for GPON connection. Divide by 32 to get the number of 1:32 splitters The remaining GPON connection to be distributed among 1:16 and 1:8 splitter accordingly. For the expansion in the building side GPON connection, required splitter combination to be equipped in CO and MTR.
- 10. 10 GPON capacity Engineering Central Office MTR FTBOSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Commercial customer who want 2 Gbps download speed
- 11. 11 GPON capacity Engineering Central Office MTR FTBOSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Commercial customer who want 1 Gbps download speed
- 12. 12 GPON capacity Engineering Central Office MTR FTBOSP IBC OSP ODF OSP ODF 1:2 1:4 GPON Port P2P Port 1:16 1:8 1:32 IBC ODF Commercial customer who want 500 Mbps download speed
- 13. 13 Number of living units (individual customer) who will be identified with single invoice for all telecom service from the service provider point of view has to be confirmed. The classification of the above data as shown in table under “Number of living units:” and the business model with marketing strategy has to confirm the FACTOR for various commercial and split ratio requirement. The fiber has to land in each living units (individual customer) and the flexibility to connected in different configuration as shown in the illustration. The number of fiber required to enter a MTR can be calculated with cable count planning equation. Cable count planning Equation