FlexO-1/2/4-SR / ZR100/200/300/400 Framers

The OmegaCORE FlexO-1/2/4-SR/ZR100/200/300/400 Framers from Alphawave Semi are multi­ channel and multi-rate FlexO framers that support 4xFlexO-1-SR, 2 x FlexO-2-SR and 1 x FlexO-4-SR configurations.

Supports 4 Channels of Framing

In additional to FlexO-1/2/4-SR function, the Core supports up to 4 channels of OTU25/50-RS framing. For OTU25/50-RS and FlexO-1-SR, the Core also supports legacy FEC RS(528, 514). The north-bound interface from the multi-channel OTUC/ OTUw client interface provides a configurable system interface. The southbound interface is mapped (at the PMA layer) to the on-chip SERDES. The core is responsible for channel alignment and FEC (where applicable).


  • Combines Ethernet streams at a variety of rates to a single multi-channel interface at the OTUCn/OTU25/50 client
  • The Core allows access connections supporting OTU25-RS, OTU50-RS, FlexO-1-SR, FlexO-2-SR and FlexO-4-SR in any combination on any port or groups of ports to a maximum total bandwidth of 400Gbps
  • Dynamically change rate on any port without affecting existing traffic
  • Off-the-shelf, proven technology implementation in ASIC SOC
  • Tested and interoperability-proven

FlexO-1/2/4-SF Block Diagram

Key Features

  • Support any ethernet combinations to maximum data-rate of the device (200G or 400G)
  • Fully compatible ITU-T G.709 and G.709.1-4 Standards
  • Support all FlexO-1/2/4-SR OH statistics and alarms and more
  • Ultra-Low latency and area efficient FEC Core supports KP4 FEC RS(544,514) and KR4 FEC RS(528,514)
  • Full alarm and consequential action processing
  • Full FlexO insert/extraction via regmap and external ports
  • Support 1588v2 time stamps at MFP and full error handling
  • Supports 16/32/64-bit data width (Two x32, One x32 or Two x16)
  • Supports In-order, out-of-order and look-ahead command processing
  • Supports equalization for TX and RX

Typical Configurations

Support the following data path communications

Serdes Rate400G

Download OmegaCORE FlexO-1/2/4-SR / ZR100/200/300/400 Framers Factsheet