EKF - Short Profile
EKF - Short Profile


CompactPCI® Express (PXI Express™)

XMC Module Carrier

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CompactPCI® Express (PXI Express™) • 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).

EK4-WALTZ w. 3rd Party XMC Module

Summary of Features

  • 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

XMC Mezzanine I/F
  • Suitable for 74x149mm2 or 74x139mm2 XMC modules according to VITA 42
  • XMC module connector J15 (specified by VITA 42 as PCIe Gen1 interface)
  • Option XMC 2.0 module connector J15 (VITA 61) recommended for PCIe Gen2
  • 8 x PCI Express® lanes Gen1 (2.5GT/s as specified by VITA 42), Gen2 (5.0GT/s as specified by VITA 61) or Gen3 (8GT/s)
  • 8-lane bidirectional PCIe Gen3 redriver/repeater for optimum signal integrity
  • PCI Express® Gen3 clock buffer for optimum signal integrity
  • +12V XMC VPWR
  • -12V regulator option (J15 Pin F8)

  • System integration of special functions not available as CompactPCI® Express card
  • I/O controllers with front I/O connectors
  • FPGA or GPU based parallel computing XMC modules

Environment & Regulation
  • Designed & manufactured in Germany
  • ISO 9001 certified quality management
  • Long term availability
  • Rugged solution (coating/sealing available on request)
  • RoHS compliant
  • Operating temperature: -40°C to +85°C (industrial temperature range)
  • Storage temperature: -40°C to +85°C, max. gradient 5°C/min
  • Humidity 5% ... 95% RH non condensing
  • Altitude -300m ... +3000m
  • Shock 15g 0.33ms, 6g 6ms
  • Vibration 1g 5-2000Hz
  • MTBF 75.1 years
  • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

EK4-WALTZ - Simplified Block Diagram

EK4-WALTZ - Simplified Block Diagram


Ordering Information
Please refer to List 23 for popular SKU
EKF is an ISO-9001 certified company
EKF Elektronik GmbH • Philipp-Reis-Str. 4 • 59065 Hamm • Germany
Phone +49 (0)2381/6890-0 • Fax +49 (0)2381/6890-90 • E-Mail