FROM THE INDUSTRY
Understanding GPON Gigabit Passive Optical Network (GPON), a stalwart in the fibre broadband realm for over a decade, first emerged in 2003 as an ITU-T standard (G.984). Its purpose was clear: to deliver high-speed broadband access with asymmetrical data rates, prioritising faster downstream speeds over upstream. The success of GPON is attributed to its cost- effectiveness, scalability, and widespread deployment across residential and small business networks globally.
Key Differences Symmetry of Speed
n XGS-PON: Strategically positioned for demanding applications such as enterprise connectivity, 5G backhaul, and scenarios requiring higher symmetrical bandwidth. Advantages of XGS-PON Higher Symmetrical Bandwidth XGS-PON’s standout advantage lies in providing symmetrical 10Gbps speeds, adeptly meeting the surging demand for upstream bandwidth in applications like video conferencing and cloud services. Stepping into the ring as the next evolution in PON technology is XGS- PON, based on the ITU-T G.9807 standard.
n GPON: Asymmetric speeds with a higher downstream rate (up to 2.5Gbps) compared to upstream (up to 1.25Gbps). n XGS-PON: Symmetrical speeds of 10Gbps for both downstream and upstream, ensuring a balanced and higher-capacity connection. Upgradability n GPON: Upgradable to 10Gbps downstream (XG-PON1), but upstream speeds remain limited. n XGS-PON: Engineered with 10Gbps symmetrical speeds from inception, ensuring a higher baseline for future upgrades. Use Cases n GPON: Predominantly deployed in residential and small business settings due to its cost-effectiveness.
The Rise of XGS-PON
Stepping into the ring as the next evolution in PON technology is XGS-PON, based on the ITU-T G.9807 standard. Introduced to the world in 2016, XGS- PON seeks to provide symmetrical 10Gbps speeds for both upstream and downstream data transmission. Positioned as an extension of GPON, XGS-PON aims to address the escalating need for higher bandwidth in applications such as 5G backhaul, enterprise connectivity, and residential broadband services.
May 2024 Volume 46 No.2
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