EKF - Short Profile
EKF - Short Profile


CompactPCI® Serial

PCI Express® External Cabling
Dual Port PCIe Gen3 x8 Host Adapter

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CompactPCI® Serial • PCI Express® External Cabling
Host Side Adapter • Dual Port PCIe Gen3 x8 Cable Connectors

Most computer systems are based on the PCI Express® standard as a high speed backbone for interconnection of peripheral components with a host CPU. Typically all PCI Express® based devices are located closely in a common enclosure.

The PCI-SIG PCI Express® External Cabling Specification for Gen1 and Gen2 data transfer rates addresses extended applications, such as split-systems or I/O expansion by means of a suitable copper cable, available e.g. for a x8 PCI Express® link, up to 7m length. When used with an AOC (Active Optical Cable), distances of up to 300m can be bridged between host and target systems. Beyond the PCI-SIG cabling specification, the Samtec PCIEO series of AOC addresses also Gen3 speed up to 100m.

The SX5-STREAM is a CompactPCI® Serial host adapter card for dual PCI Express® x8 external cabling. The board is provided with two PCIe® x8 front panel connectors, for attachment of one ore two remote (target) systems via PCI Express® x8 links. The SX5-STREAM has been designed for operation in a CompactPCI® Serial fat pipe slot (PCIe® x8). The on-board Gen3 PCI Express® packet switch splits the upstream link into two concurrent PCI Express® downstream links x8, each delivering up to 64Gbps to an associated target system.
The advantages of PCI Express® as an communication path compared e.g. to 10Gbps Ethernet are higher data transfer speed at lower latency, and primarily merging distributed subsystems virtually into a single PCI Express® based computer assembly.

SX5-STREAM - Photo Soon Here

The SX5-STREAM allows to control a remote PCI Express® based target (downstream) system by a CompactPCI® Serial host CPU via PCI Express® external cabling. The target system may be any PCI Express® based hardware with an external cabling adapter, not necessarily a CompactPCI® Serial system.

By means of the SX5-STREAM, a CompactPCI® Serial system backplane, with respect to its PCI Express® resources, can be virtually extended. Hence, PCI Express® based devices in a remote target system can be controlled by the CompactPCI® Serial host system CPU in an identical manner as its local resources.

Feature Summary

  • PCI Express® external cabling host side adapter
  • PICMG® CompactPCI® Serial (CPCI-S.0) fat pipe slot x8 recommended
  • Single Size Eurocard 3U 100x160mm2, front panel width 4HP
  • cPCI-S Backplane connectors P1, P2 for x8 PCI Express® lanes

  • PCI Express® External Cabling Specification Revision 2.0
  • Two connectors PCIe x8 68-pos. (front panel), iPass™ (Molex)
  • Two target systems or devices can be attached simultaneously
  • Suitable for remote target systems to be controlled by a CompactPCI® Serial host
  • PCIe® Gen2 x8 allows for up to 40Gbps bandwidth on either cabling port
  • PCIe® Gen3 x8 allows for up to 64Gbps bandwidth on either cabling port
  • Connects to any PCIe based target system with PCI Express® x8 external cabling interface conforming to the cabling specification rev. 2.0
  • Suitable for any PCIe® based target system with PCI Express® x4 external cabling interface via transition cable assembly
  • Copper cable assemblies x8 host to x8 target 0.5m to 7m length available
  • Copper cable assemblies x8 host to x4 target (transition cables) available
  • PCIe® Gen2 active optical cable assemblies (AOC) up to 300m length available (Samtec)
  • PCIe® Gen3 active optical cable assemblies (AOC) up to 100m length available (Samtec)
  • AOC cable assemblies x8 host to x4 target available (Samtec)
  • AOC half cable assemblies available iPassTto MTP male/female (Samtec)

Special Features
  • Gen3 PCI Express® 24-lanes packet switch on-board
  • Host system must provide constant frequency clock (CFC) for active optical cables (AOC)/li>
  • Spread spectrum clock (SSC) or constant frequency clock (CFC) for copper cables

  • For lowest latency at fastest speed connected systems
  • Distributed computing - host to target system hierarchy
  • Peer to peer computing - special TCP/IP stack (Dolphin) available
  • Split-systems, hybrid systems, or system expansion applications
  • Direct host to target device connection (e.g. PCIe based remote NVMe mass storage)
  • Matching target device controller board available for CompactPCI® Serial (SXC-LOOP)

  • Designed & manufactured in Germany
  • ISO 9001 certified quality management
  • Long term availability
  • Rugged solution (coating, sealing, underfilling on request)
  • RoHS compliant
  • Commercial and industrial temperature range
  • Humidity 5% ... 95% RH non condensing
  • Altitude -300m ... +3000m
  • Shock 15g 0.33ms, 6g 6ms
  • Vibration 1g 5-2000Hz
  • MTBF 61.2 years
  • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

SX5-STREAM - Simplified Block Diagram

SX5-STREAM - Simplified Block Diagram
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