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 and over the top video 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 highly integrated, low power, low-cost solutions meeting access applications requirements for FTTH and FTTB deployments, and precise timing synchronization solutions for cellular backhaul and business applications.
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):
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 passively 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 split ratio and distance reach is determined by the physical insertion loss and power budget supported by the optics and by the number of logical links supported by the PON OLT. 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.
Featured Products
- Cortina Systems® CS8016 Ethernet Passive Optical Network (EPON) IEEE 802.3ah and CTC V2.1 compliant, cost and power optimized for FTTH applications
Cortina Systems® CS8032 Ethernet Passive Optical Network (EPON) CTC V3.0 and IEEE P1904.1 (SIEPON) compliant, enabling VoIP, power grid, and IPv6 applications
- Cortina Systems CS8022 Ethernet Passive Optical Network (EPON), CTC v3.0 and IEEE P1904.1 (SIEPON) compliant, quad ports with full traffic management and stacking for OLT applications
| Product | Line Interface | Uplink Interface | Package | Description |
|---|---|---|---|---|
| CS3242 | 24 port Serial to SFP | SPI4.2/SPI3 | 1152BGA | 24-port SPI4 10/100/1000 MAC |
| CS7542/CS7522 | 3/2 | RGMII/RMII | BGA | Scalable Digital Home Ultra Performance Platform |
| CS8016 | 1GE | 1x GMII/TBI/SerDes | 256 BGA | EPON Optical Network Unit |
| CS8020 | 4GE | 4 x GMII/TBI/SerDes | 724 BGA | Industry-first quad OLT |
| CS8021 | 4GE | 4 x GMII/TBI/SerDes | 724 BGA | Quad EPON OLT Chip |
| CS8022 | 4 x EPON OLT | 2 x XAUI/4 x SGMII | 854 BGA | 2nd Generation Quad OLT EPON |
| CS8032/8033 | 1 | SERDES | 225 BGA | 4th Generation EPON ONU |
| CS8120 | 1 port 10G EPON | XAUI | 854 BGA | 10 Gbps EPON OLT |
| IXF1024/IXF1012 | RGMII | SPI4.2 | 672 BGA | 24/12-port SPI4 10/100/1000 MAC |
| IXF1104 | SGMII/RGMII | SPI3 | 552 CBGA | 4-Port SPI3 Gigabit Ethernet MAC |
| IXF1110 | 10p Serial to SFP | SPI4.2 | 552 BGA | 10-port SPI4 Gigiabit Ethernet MAC |