EKF - Short Profile
EKF - Short Profile


CompactPCI® Serial • XMC Module Carrier Card

PCIe® x8 • Full Length 149mm XMC Module

Differential Pair Signals Rear I/O Option

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Ordered List
Product Information
Block Diagram
General Information
CPCI Serial Concept

XMC Mezzanine Modules

DB4 | DC2 | DN1 | DN3 | DS1 | DU1 | DU2 | DV1 | DX2 | DX4 | DX5

Alternate XMC Module Carrier

SK2 | SK3 | CK2

SK5-BALL • CPCI Serial XMC Module Carrier
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XMC Mezzanine Modules
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XMC vs. XMC 2.0 Connector Styles
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CompactPCI® Serial • XMC Module Carrier
PCIe® x8 • Full Length 149mm XMC Module
Differential Pair Signals Rear I/O Option

The SK5-BALL is a peripheral slot board for CompactPCI® Serial systems and acts as carrier card for an XMC-style mezzanine module. XMC modules a re 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 SK5-BALL can be used together with 74x149mm2 full length or 74x139mm2 short length XMC mezzanine cards.

The SK5-BALL is equipped with a bidirectional 8-lane PCI Express® Gen3 redriver, for optimum high speed signal integrity, and should be installed into a fat pipe peripheral slot of a CompactPCI® Serial backplane. As an option, the SK5-BALL can be populated with rear I/O connectors. The XMC carrier connector J16 signals are available across the CompactPCI® Serial backplane connectors P4/P5, and J14 has been routed to P3.


SK5-BALL w. Sample XMC Module

The SK5-BALL requires at least a single PCI Express® lane from the backplane, passed over across the connector P1 to a PCIe redriver circuit. Up to eight PCI Express® lanes are supported, when the SK5-BALL is installed into a CompactPCI® Serial fat pipe peripheral slot (P1/P2 backplane connectors in use). With a total link bandwidth of 64Gbps, even very demanding applications can be realized, such as a 10/40GBps Ethernet or USB 3.1 XMC mezzanine module e.g.

The on-board 8-lane bidirectional redriver is suitable up to 8.0Gbps (PCIe 3.0) data transfer rate per lane, and ensures optimum signal integrity (wider opening with respect to the eye diagrams). The XMC module connector J15 is directly tied to the redriver circuit. In addition, a zero delay PCIe Gen3 clock buffer is provided on-board. The SK5-BALL front panel is covered by a 17.5mm protruding metal shell, which allows 149mm full length XMC mezzanine modules to be accommodated.

Feature Summary

  • PICMG® CompactPCI® Serial standard (CPCI-S.0) peripheral slot card
  • Single size Eurocard 3U 4HP 100x160mm2
  • CompactPCI® Serial backplane connectors P1 & P2 (fat pipe slot up to PCIe® x8)
  • Optional backplane connectors P3, P4, P5 for rear I/O usage

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)
  • Option XMC module connector J14 (usable for rear I/O across P3)
  • Option XMC module connector J16 (usable for rear I/O across P4/P5)

Option Rear I/O
  • Option CompactPCI® Serial backplane connectors P3, P4, P5
  • XMC rear I/O connector J14 wired to P3 (32 differential pair signals)
  • XMC rear I/O connector J16 wired to P4 and P5 (78 signals)
  • P5 can also deliver power to the rear I/O module (+12V, +5V, +3.3V)
  • Suitable e.g. for PIM carrier rear I/O module (VITA 36 Draft)
  • -EKF offers custom specific rear I/O module development

Regulatory, Environment
  • Designed & manufactured in Germany
  • ISO 9001 certified quality management system
  • Long term availability
  • Coating, sealing, underfilling on request
  • RoHS compliant 2011/65/EC
  • 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 62.2 years
  • EC Regulatory EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

SK5-BALL - Simplified Block Diagram

SK5-BALL - Simplified Block Diagram


SK5-BALL XMC Module Carrier

Ordering Information
Please refer to List 21 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