GPON 10GPON Evolution solution
What Is XG(S)-PON?
XG(S)-PON is evolved from the existing GPON technology, the factors promoting the technology evolution to XG(S)-PON are as follows:
- Developing services require higher bandwidths and the GPON technology cannot meet bandwidth requirements.
- Innovative access technologies on the user side require higher bandwidths and the GPON technology will face bandwidth bottlenecks.
- A greater split ratio and a longer transmission distance increase network construction investments.
XG-PON, 10-Gigabit-capable passive optical network, provides asymmetric 10G transmission (Maximum downstream line rate: 9.953 Gbit/s, Maximum upstream line rate: 2.488 Gbit/s ).
XGS-PON, 10-Gigabit-capable symmetric passive optical network, provides symmetric 10G transmission (Maximum downstream line rate: 9.953 Gbit/s, Maximum upstream line rate: 9.953 Gbit/s ).
10G PON Ready for Various Scenarios
Network Evolution Overview
XG(S)-PON has the following features to support smooth evolution from a GPON network to a XG(S)-PON network: The XG(S)-PON wavelength planning does not overlap the GPON wavelength planning,therefore, the GPON and XG(S)-PON share the ODN network in the wavelength division multiplexing mode; The OLT platform supports coexistence of GPON service boards and XG(S)-PON service boards; XG(S)-PON and GPON have the same service provisioning and service deployment operations, they can share the NMS and service provisioning system.
Evolution Solution - Using XG(S)-PON Combo
he PON Combo supports two PON technologies through a combo port. One PON Combo port supports multiple types of ONUs at the same time, implementing hybrid network construction of GPON and XG(S)-PON and smooth evolution from GPON to XG(S)-PON.
- The XG(S)-PON combo board works with the XG(S)-PON combo optical module to implement a combo port working in GPON mode and XG(S)-PON mode at the same time.
- The XG(S)-PON combo optical module integrates the GPON optical module, XG(S)-PON optical module, and WDM multiplexer to share ODN resources without adding an external WDM multiplexer.
- In the upstream direction: After the upstream signal of the ONU enters the XG(S)-PON combo port, the WDM determines whether the signal is a GPON signal or a XG(S)-PON signal according to the wavelength, and then sends the signal to the corresponding channel for processing.
- In the downstream direction: After the downstream signal is sent from the OLT XG(S)-PON combo port, the GPON ONU and the XG(S)-PON ONU select the wavelength through the internal wavelength filter to receive the signal.
XG(S)-PON Combo Evolution Solution
Network evolution steps：XG(S)-PON combo service board replace the GPON service board→Cut over the optical fiber into XG(S)-PON combo module→Replace or add a XG(S)-PON OUN. Network evolution newly increasing components: XG(S)-PON combo service board and XG(S)-PON combo module.
Evolution Solution - Using Flex-PON
Flex-PON is a flexible PON solution developed by Huawei for GPON and XG(S)-PON. It implements smooth network evolution through the integrated Flex-PON service board.The ports of the Flex-PON service board can work in multiple modes , including: GPON、XG-PON、XGS-PON、GPON&XG-PON Combo、GPON&XGS-PON Combo. The port mode of the Flex-PON service board can be set as required. After the port mode is set, the corresponding ONU can be connected to the optical module that matches the port mode.
Flex-PON Board + GPON + XG(S)-PON/Combo + TWDW-PON
RTU (Right to Use, license) Flex-PON service board Matched optical module Matched ONU
| Port Mode | RTU Type | Optical Module Type | ONU Type |
| GPON | No need | GPON | GPON ONU |
| XG-PON | XG(S)PON RTU | XG-PON | XG-PON ONU |
| XGS-PON | XG(S)PON RTU | XGS-PON |
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| XG-PON Combo | XG(S)PON RTU | XG-PON Combo |
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| XGS-PON Combo | XG(S)PON RTU | XGS-PON Combo |
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The evolution solution must be completed in five steps:
- Loading RTU;
- Configuring the Flex-PON port mode;
- Replace the optical module;
- Replacing or adding an ONU;
- Configuring Services;
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XG(S)-PON Combo,Save Rack Space, Reducing 23% TCO
VR Is Rapidly Developing over Wi-Fi
- Giga Access: 10G PON network confirm 200M bandwidth access
- 300Mbps Home Wi-Fi: Delicate 5 GHz backhaul throughput ↑3 times
- Enhanced Algorithm: TCP over dual-band optimization, let RTT
| Specifications | GPON | 10G GPON | |
| XG-PON | XGS-PON | ||
| Wavelength |
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| Center wavelength |
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| Maximum Line Rate |
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| Maximum Physical Transmission Distance | 60 km NOTE: The physical reach is defined by split ratio, optical module size, and fiber quality. |
100 km NOTE: The physical reach is defined by split ratio, optical module size, and fiber quality. |
100 km NOTE: The physical reach is defined by split ratio, optical module size, and fiber quality. |
| Maximum Split Ratio | 1:128 NOTE: The actual split ratio depends on the optical module model and fiber distance. |
1:256 NOTE: The actual split ratio depends on the optical module model and fiber distance. |
1:256 NOTE: The actual split ratio depends on the optical module model and fiber distance. |
| Interface Board | H901GPHF , H902GPHF , H901GPSF , H902GPSF , H901GPSFE , H902GPHFE |
H901XGHD , H901XGSF , H901XGHDE | H901TWED , H902TWHD , H901XSHF , H902XSHF , H902XSHD , H901TWEDE |
| Combo Board | H902CGHD , H901CGID , H901CGHF , H902CGHF , H901CSHF , H902CSHF , H902CSHD | ||
| Flex-PON Board | H901FLHF , H902FLHF , H903FLHF | ||
