GPON: Gigabit Passive Optical Network

A passive optical network (PON) is a network architecture that brings fiber cabling and signals to the home using a point-to-multipoint scheme that enables a single optical fiber to serve multiple premises. Encryption maintains data security in this shared environment. The architecture uses passive (unpowered) optical splitters, reducing the cost of equipment compared to point-to-point architectures.

The GPON (gigabit passive optical network) standard differs from other PON standards in that it achieves higher bandwidth and higher efficiency using larger, variable-length packets. GPON offers efficient packaging of user traffic, with frame segmentation allowing higher quality of service (QoS) for delay-sensitive voice and video communications traffic.

Altera and our partners offer a number of devices and intellectual property (IP) cores (see Table 1) that together form the Altera® GPON solution. Altera devices with embedded high-speed serial transceivers include:

  • Stratix® V GX FPGAs
  • Stratix IV GX FPGAs
  • Stratix II GX FPGAs
  • Arria® V FPGAs
  • Arria II GX FPGAs
  • Arria II GZ FPGAs
  • Arria GX FPGAs
  • Cyclone® V FPGAs

Table 1. Altera and Partner Offerings for GPON Applications

GPON Application Solution Elements
Optical Line Termination (OLT) MACStratix V and Stratix IV GX FPGAs
Ethernet MAC10/100/1000 MAC and 10 Gb MAC cores from MoreThanIP
Traffic Aggregation and ManagementFrom Altera:
  • 10 Gbps traffic management reference design
  • 10 Gbps RLDRAM II packet memory controller reference design
  • Two-level scheduler reference design
  • Hardware validation platform
20 Gbps Packet ProcessingPacket processing modules and framework from Altera, including:
  • Stratix series FPGAs
  • Arria V FPGAs
  • Cyclone® series FPGAs
  • Nios® II embedded processors

From Ethernity Networks: