OM1312 [EoS HOLO VMAP 2G5]

 Download DatasheetThe OM1312 Virtual ASSP is a highly integrated, ultra compact 2.5Gb/s, High and Low Order, Ethernet over Sonet/SDH Packet Mapper targeted to the Xilinx Virtex 5 Family. 2.5Gb/s of channelized Ethernet is transported over High Order or Low Order Sonet/SDH (EOS) using standards complaint GFP-F, VCAT and LCAS. The 'packet' interface is SPI3 and supports 128 channels allowing more individual customers to be handled on a single device further reducing opex.

The 'Sonet/SDH' interface is 2.5Gb/s 1+1 protected interface at either 2G5 or 622Mhz for high reliability carrier grade deployments. The OM1312 handles both 'Real Concatenation' (CCAT) and 'Virtual Concatenation' (VCAT). In addition, LCAS is supported to allow group bandwidth to be hitlessly increased or decreased as customer need dictates. The OM1312 has been designed from the ground up as cost effective ASSP replacement in an FPGA – ultra-compact IP targeting the lowest cost FPGA, highly integrated design with CDR, Framer, Mapper and SPI3 interface in a single package, 16bit wide DDR2 for external packet buffer and external differential delay memory (up to 64ms), Software Device Driver and on-chip debugger and supporting toolchain - all features which lower BOM cost and accelerate TTM.

Typical applications are in Metro Core head end products supporting many EOS VCAT/GFP streams from multiple Access Network customers into a single 10GbE stream for handoff to the Data Core Network.

 

Backplane Interfaces

  • Protected 2G5 TFI5 for 1+1 Equipment Protection.
  • OR Protected 4x 622M for 1+1 Equipment Protection

NPU Interfaces

  • 2G5 – SPI3 for direct connection to NPU or TM.

Sonet/SDH

  • Sonet/SDH G.707/T1.105 compliant.
  • SDH Mappings – AU4- 16c, 4c, AU4, AU3
  • Sonet Mappings – STS1, STS3c, 12c, 48c SPE
  • SDH Payloads – VC11, VC12, VC3, VC4, VC4-4c, 16c
  • Sonet Payloads – VT1.5, VT2, STS1, STS3c, 12c, 48c.
  • Full SOH & POH Processing.
  • Overhead Insert/Extract over external bus for mate to mate or linecard to switch signalling.

GFP/VCAT/LCAS

  • 128 VCAT Groups individually rate configurable.
  • GFP-F (G.7041), Mapping support.
  • VCAT Payloads VT1.5, VT2, VC11, VC12, STS1, STS1-3c, VC3 and VC4.
  • 'Any to any' payload to VCAT group assignment.
  • 64ms differential delay using external low-cost DDR2 memory.
  • LCAS support (ITU G.7042) for hitless dynamic bandwidth adjustment.
  • LCAS to non-LCAS interworking.
  • Support for Client Management Frames

Ethernet

  • SPI3 Channelised Interface.
  • External packet buffer in low cost DDR2 memory.
  • Jumbo Frame support.

OAM

  • 16 bit OAM Bus for configuration, performance monitoring, alarm reporting and event reporting.

 

Click here to download the OM1312 Datasheet