DCT | Test and Measurement

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IPM-4SE is designed as a multiservice access platform for PDH over IP applications.

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  • 4E1 over Ethernet Access Unit, IPM-4SE
  • Support IEFT RFC4533 Structure-Agnostic TDM over Packet (SAToP), Metro Ethernet Forum MEF8.
  • 4 x E1 NRZ Serial Interface with LOS/AIS detection
  • Use Raw Encapsulation method for PDH payload over IP packet.
  • Support Circuit Emulation Service over IP.
  • Comply with IEFT draft standard for CESoPSN and SAToP; Metro Ethernet Forum MEF8 IA.
  • Support both Point-to-Point and Point-to-Multipoint operation.
  • Support 4 independent Adaptive Clock recovery block for Ingress PDH (PSN -> TDM) clock generation. Recovered clock jitter is compliant with ITU-T G.824 (E1 Jitter Control).
  • Independent configurable jitter buffer depth to compensate up to 250ms of Packet Delay Variation.
  • Support framed/unframed traffic (ITU-T G.704)
  • Lost packets processing/compensation via PW (Pseudo Wire) control field Sequence Number.
  • Provide Subscriber side Data traffic bandwidth control to guarantee enough TDM payload bandwidth.


IPM-4SE is designed as a multiservice access platform for PDH over IP applications. E1 frames can be mapped/de-mapped into/from IP packets. An adaptive clock recovery method for Ingress PDH (PSN ->TDM) clock generation is implemented to support E1(ITU-T G.823) Jitter performance

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