In today's communication Network field, PassiveOptical Network (PON) technology has gradually occupied an important position in the mainstream communication network with its advantages of high speed, long distance and no noise. Among them, GPON, XG-PON and XGS-PON are the most concerned passive optical network technologies. They have their own characteristics and are widely used in different scenarios. This article examines the key differences between these three technologies in detail to help readers better understand their features and application scenarios.
GPON, full name Gigabit-CapablePassive OpticalNetwork, is a passive optical network technology first proposed by FSAN organization in 2002. After several years of development, ITU-T officially standardized it in 2003. GPON technology is mainly for the access network market, which can provide high-speed and large-capacity data, voice and video services for families and enterprises.
GPON technology features are as follows:
1. Speed: downstream transmission rate is 2.488Gbps, upstream transmission rate is 1.244Gbps.
2. Shunt ratio: 1:16/32/64.
3. Transmission distance: the maximum transmission distance is 20km.
4. Encapsulation format: Use GEM (GEM Encapsulation Method) encapsulation format.
5. Protection mechanism: Adopt 1+1 or 1:1 passive protection switching mechanism.
XG-PON, full name of 10Gigabit-CapablePassive OpticalNetwork, is the next generation of GPON technology, also known as the next generation passive optical network (NG-PON). Compared with GPON, XG-PON has significant improvements in speed, shunt ratio and transmission distance.
XG-PON technology features are as follows:
1. Speed: Downlink transmission rate is 10.3125Gbps, uplink transmission rate is 2.5Gbps (uplink can also be upgraded to 10 GBPS).
2. Shunt ratio: 1:32/64/128.
3. Transmission distance: the maximum transmission distance is 20km.
4. Package format: Use GEM/10GEM package format.
5.Protection mechanism: Adopt 1+1 or 1:1 passive protection switching mechanism.
XGS-PON, known as 10GigabitSymmetric Passive OpticalNetwork, is a symmetric version of XG-PON, designed to provide broadband access services with symmetric upstream and downstream rates. Compared with XG-PON, XGS-PON has a significant increase in uplink speed.
XGS-PON technology features are as follows:
1. Speed: The downstream transmission rate is 10.3125Gbps, the upstream transmission rate is 10 GBPS.
2. Shunt ratio: 1:32/64/128.
3. Transmission distance: the maximum transmission distance is 20km.
4. Package format: Use GEM/10GEM package format.
5. Protection mechanism: Adopt 1+1 or 1:1 passive protection switching mechanism.
Conclusion: GPON, XG-PON and XGS-PON are three key passive optical network technologies. They have obvious differences in speed, shunt ratio, transmission distance, etc., to meet the needs of different application scenarios.
Specifically: GPON is mainly for the access network market, providing high-speed, large-capacity data, voice and video and other services; XG-PON is an upgraded version of GPON, with higher speed and more flexible shunt ratio. XGS-PON emphasizes the symmetry of upstream and downstream rates and is suitable for peer-to-peer network applications. Understanding the key differences between these three technologies helps us choose the right optical network solution for different scenarios.
Post time: Apr-24-2024