What is the GPON

Hi there,

Passive Optical Network (PON) is a point to multi-point (P2MP) passive optical network. Mainstream PON technologies include broadband passive optical network (BPON), Ethernet passive optical network (EPON), and gigabit passive optical network (GPON). Adopting the ATM encapsulation mode, BPON is mainly used for carrying ATM services. With the obsolescence of the ATM technology, BPON also drops out. EPON is an Ethernet passive optical network technology. GPON is a gigabit passive optical network technology and is to date the most widely used mainstream optical access technology. GPON is defined by ITU-T Recommendation G.984.x. 

GPON network architecture is as follows:

IFgpon: GPON interface

SNI: Service Node Interface

UNI: User to Network Interface

CPE: Customer Premises Equipment