The PM5451 HyPHY-AXS is an OTN access platform on a chip that enables a new class of compact transport solutions for the Metro Access network. It is optimized for the backhaul of xPON OLTs, 3G/LTE mobile base stations and Enterprise Ethernet services over a unified Metro OTN infrastructure. By integrating multi-rate, multi-protocol client interfaces, Ethernet MACs with onboard support for PTP/SyncE and OTN framing, mapping and multiplexing, the HyPHY-AXS enables compact metro access platforms with the highest level of feature-integration at an optimal footprint, power and Bills-of-Material (BOM) cost. The HyPHY-AXS supports a rich set of OTN framing, mapping and multiplexing resources for a variety of client protocols, including OTN, SONET/SDH, Ethernet, Fibre Channel, ESCON, FICON and multi-rate bit transparent services such as video. It provides a simple path towards extending designs to enable support for higher client port densities and fabric-connected applications using the PM5450 HyPHY-20Gflex OTN processor. Applications • Compact metro access platforms • Universal Muxponder/ADM cards for OTPs and ROADMs