EKF - Short Profile
EKF - Short Profile


CompactPCI® Serial

PCI Express® External Cabling • PCIex4 Target System Adapter

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Eight Drive SATA SSD Cassette

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CPCI Serial Concept

SXS-STRING • PCI Express® External Cabling • Target System Adapter
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CompactPCI® Serial • PCI Express® External Cabling • Target Side Adapter
Enables SATA Based Peripheral Cards in a CompactPCI® Serial Target System

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 addresses extended applications, such as split-systems or I/O expansion by means of a suitable copper cable, available e.g. for a x4 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.

The SXS-STRING is a target system adapter card for PCIe x4 external cabling. The board fits into the system slot of a CompactPCI® Serial backplane. Two on-board quad-port SATA 6G RAID controllers are used to distribute eight SATA channels across a CompactPCI® Serial backplane. Thus, up to eight SATA based CompactPCI® Serial peripheral slot cards in a target system can be controlled by a remote host system CPU, with a maximum PCI Express® transfer rate of 20Gbps. The SXS-STRING serves as a high performance SATA controller, suitable e.g. for configuring industrial storage systems.


SXS-STRING • Shown w. Optical Cable

The SXS-STRING allows to control a CompactPCI® Serial target (downstream) system by a remote host CPU via PCI Express® external cabling. The host (upstream) system may be any computer with a PCI Express® external cabling adapter, not necessarily a CompactPCI® Serial system.

The SXS-STRING must be inserted into the system slot of the CompactPCI® Serial target system. Being mainly a powerful SATA controller, the SXS-STRING is organized similar to a CompactPCI® Serial system slot controller card, however restricted to the SATA resources of the CompactPCI® Serial backplane.

The SXS-STRING is connected to the host system by a PCI Express® x4 front panel cabling connector. An on-board PCI Express® packet switch establishes dedicated PCIe links for two attached SATA controllers. Eight SATA channels in total are available via the relevant backplane connectors P1/P3, sufficient for up to eight SATA based CompactPCI® Serial peripheral cards in a target system. Since the SXS-STRING is equipped with two quad port SATA 6G controllers, the SATA devices of the CompactPCI® Serial target system are organized as 2 x 4 drives. Each controller can be individually configured for RAID level 0/1/10, or non-RAID operation.

SXS-STRING - Typical Application

SXS-STRING - Typical Application

Feature Summary

  • General
    • PCI Express® external cabling target side adapter
    • PICMG® CompactPCI® Serial standard (CPCI-S.0) system slot card (SATA resources only)
    • Single Size Eurocard 3U 100x160mm2, front panel width 4HP
    • cPCI-S Backplane connectors P1, P3 for 8 SATA channels
    • P6 connector for even more mechanical ruggedness (option on request)
  • PCI Express®
    • PCI Express® External Cabling Specification Rev. 2
    • Front Panel x4 connector 38-pos. (aka iPass™ series)
    • Suitable for CompactPCI® Serial target systems to be controlled by a remote host
    • Split-systems, hybrid systems, or system expansion applications
    • Suitable for any host system with PCI Express® x4 external cabling host adapter
    • Copper cable assemblies 0.5m to 7m length available
    • Active optical cable assemblies (AOC) up to 300m length available
    • PCIe Gen2 x4 allows for up to 20Gbps bandwidth
  • SATA Storage Controller
    • 2 x Marvell 88SE9230 SATA controllers
    • Quad port (each controller), 6G SATA (3G, 1.5G backward compliant)
    • Native Command Queuing
    • Hardware RAID 0/1/10 or JBOD configuration
    • On-the-fly AES encryption 128/256-bit
    • AHCI compatible
    • Non-RAID or RAID operation individually configurable for each controller (up to 4 drives each)
    • Driver and RAID management software available for download (to be installed on the host system)
  • Applications
    • Suitable for high throughput remote industrial data storage systems
    • Lower latency compared to NAS storage solutions
    • Data transfer rate twice as much compared to a 10GbE NAS
    • SSD configuration control directly by host system
    • Redundancy by concurrent hardware RAID (target) and software RAID (host)
    • Can be used with any computer system providing a PCIe x4 cabling host controller
    • Can be combined with up to eight SD1-DISCO SATA SSD carrier cards on a standard CompactPCI® Serial backplane
    • Can be combined with up to eight SD8-STEEL SATA SSD carrier cards (front door mobile rack) on a standard CompactPCI® Serial backplane
    • SDC-0100-SATA cassette for 8 x 2.5-inch SATA SSD horizontal mounting available for lowest space requirements
    • SDC-9100-SATA custom backplane available to be combined with the SATA cassette
    • SX2-SLIDE dual port host adapter recommended for CompactPCI® Serial systems (can control two SXS-STRING target adapters simultaneously)
  • Regulatory
    • Long term availability
    • Rugged solution (coating, sealing, underfilling on request)
    • RoHS compliant 2002/95/EC
    • 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 44.8 years
    • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

SXS-STRING - Simplified Block Diagram

SXS-STRING - Simplified Block Diagram


SXS-STRING • Shown w. Copper Cable
Ordering Information
Please refer to List 21 for popular SKU
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