Access Market Segment:

The communications industry is on the cusp of a revolution characterized by three driving forces that will forever change the communications landscape. The rapid decline in the cost of fiber optics and Ethernet equipment has made them an attractive option for access loop deployment. Third, the Internet has precipitated robust demand for broadband services, leading to an explosive growth in Internet Protocol (IP) data traffic and putting enormous pressure on carriers to upgrade their existing networks. 

 

The confluence of these factors is leading to a fundamental paradigm shift in the communications industry; a shift that will ultimately lead to widespread adoption of a new optical IP Ethernet architecture that combines the best of fiber optic and Ethernet technologies. This architecture is poised to become the dominant means of delivering bundled data, video, and voice services on a single platform. Cortina Systems® product lines offer high-density low-cost solutions meeting access applications requirements, and power efficient solutions for microwave transport, cellular base stations, and FTTH solutions.

 

Upgrading to Fiber-To-The-Premises (FTTP) and Passive Optical Network (PON) devices help Access Networks meet the demand for more bandwidth and enable additional revenue generating services such as HDTV, VOIP, and high-speed data service to a larger number of customers.

 

Cortina Systems® Passive Optical Network Solutions (PON) target three solution spaces (see figure 1):

Figure 1: PON Deployment Across the Network

 

 

 

  • OLT (Optical Line Terminal) – The OLT resides in the Central Office (CO) and transmits and receives optical signals. The OLT converts the incoming traffic from the network into the PON transport layer and distributes it to customer premises ONU devices.
  • PON Splitters – Using a PON splitter, a single trunk fiber from the OLT device at the central office is split and shared by a number of ONUs at the customer premises. Thus, in the downstream direction (from the OLT to the ONUs), the PON is a point-to-multipoint network; while in the upstream direction (from the ONUs to the OLT) it acts as a multipoint-to-point network. The passive splitters used to share the signal with a number of subscribers are limited by splitter attenuation and the working bit rate of the OLT and ONUs.
  • ONU (Optical Network Unit) – ONU devices are the interface between the customer equipment and the PON. It receives optical signals from the PON after the PON splitter and converts the signal into electrical signals. On the transmit side, it converts electrical signals into optical signals and transmits the signal back across the PON.
  • MDU ONU (Multi-Dwelling Unit ONU) – While standard ONU devices connect fiber directly to each residence or office, a MDU ONU interfaces the fiber network to the existing short runs of copper wire that pre-exist within buildings or across clusters of buildings reducing costs of installation and maintenance.

Target Applications  

Figure 2: CS8x12 in MDU offering integrated video, voice, and data services

 

 

 

Technology

  • EPON
  •  GPON 

Featured Products

  • Cortina Systems® CS8012 Ethernet Passive Optical Network (EPON) Multi Dwelling Unit (MDU) System-on-a-Chip (SoC) (see figure 4)
  • Cortina Systems® CS8212 Gigabit Passive Optical Network (GPON) Multi Dwelling Unit (MDU) System-on-a-Chip (SoC) (see figure 5)

Figure 4: CS8012 EPON MDU SoC 

 

Figure 5: CS8212: GPON MDU SoC

 

Relevant News:

  • Cortina Announces Integrated Access Platform to Transform Access Market From 1 to 10 Gigabit
  • Passive Optical Networks - An Answer to Ultrabroadband Access Networks

 Access Market Product Selector Guide

Product Line Interface Uplink Interface Package Description
CS3242 24 SGMII/Serial SPI4.2/SPI3 1152BGA 24-port SPI4 10/100/1000 MAC
CS8012 4xGE or 32xFE; 2x Utopia-2/POSPHY-2 2x EPON Serdes or SGMII 854 HSBGA EPON MDU SoC
CS8015 1GE 1x GMII/TBI/SerDes 256 BGA ONU GEPON (EPON)
CS8016 1GE 1x GMII/TBI/SerDes 256 BGA EPON Optical Network Unit
CS8020 4GE 4 x GMII/TBI/SerDes 724 BGA The industry-first quad OLT in a single chip
CS8021/CS8026 4/2GE 4 x GMII/TBI/SerDes 724 BGA Quad/Dual EPON OLT Chip
CS8212 4xGE or 32xFE; 2x Utopia-2/POSPHY-2 2x GPON Serdes or SGMII 854 HSBGA GPON MDU SoC
CS8222 2 UTOPIA-2/POSPHY-2 2x Gigabit Ethernet with Intergrated Serdes 854 HSBGA xDSL Aggregation Switch SoC
CS8224 4xGE or 32xFE 2x Gigabit Ethernet with Intergrated Serdes 854 HSBGA Active Ethernet Aggregation Switch SoC
IXF1024/IXF1012 24 RGMII SPI4.2 672 BGA 24/12-port SPI4 10/100/1000 MAC
IXF1104 4 Serial/RGMII SPI3 552 CBGA 4-Port SPI3 Gigabit Ethernet MAC
IXF1110 10 Serial SFP SPI4.2 552 BGA 10-port SPI4 Gigiabit Ethernet MAC
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