XMC Module Carrier PCIe® x8

The SK4-WALTZ is a peripheral slot board for CompactPCI® Express and PXI Express™ systems and acts as carrier card for an XMC-style mezzanine module. XMC modules are specified by ANSI/VITA 42, as an advanced replacement for PMC modules. While using a similar form factor as PMC cards, XMC modules are provided with a PCI Express® interface. The EK4-WALTZ can be used together with 74x149mm2 full length and 74x139mm2 short length XMC mezzanine cards. The EK4-WALTZ is equipped with a bidirectional 8-lane PCI Express® Gen3 redriver, for optimum high speed signal integrity, and must be installed into a suitable peripheral slot e.g. Type 1 or Type 2 of a CompactPCI® Express (PXI Express™) backplane. The XJ3 connector supports any PCIe link configuration up to x8. In addition, the optional XP1 power connector can be used to supply high current consuming XMC modules (requires Type 1 CompactPCI® Express slot).

Downloads & Ressources


  • PICMG® CompactPCI® Express standard (EXP.0) peripheral slot card type 1 or type 2
  • PXI Express™ peripheral slot card
  • Single Size Eurocard 3U 4HP 100x160mm2 with front extension
  • Backplane connectors XJ3, XJ4 (type 2 peripheral slot)
  • CompactPCI® Express backplane connector XP1 (+12V power) optional (type 1 peripheral slot)
  • CompactPCI® Express backplane connector XJ4 with F2 key for CompactPCI® Express & PXI Express™ systems (F1 key available on request)
  • PCIe x8 upstream Gen3 8.0Gbps via redriver
  • Actual link size and transfer speed as result of XMC module link training

Simplified Block Diagram

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