CompactPCI® Serial PCI Express® External Cabling Target Side Adapter • Enables PCIe 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 SX9-HOWL is a target system adapter card for PCIe x4 external cabling. The SX9-HOWL fits into the backplane system slot of a CompactPCI® Serial target system. Two on-board packet switches are used to replicate eight PCI Express® links across a CompactPCI® Serial backplane. Thus, up to eight PCIe based CompactPCI® Serial peripheral slot cards in a target system can be controlled by a remote host system CPU, with a maximum transfer rate of 20Gbps/s.
As an option, the SX9-HOWL is available with additional front panel I/O (2 x RJ45 GbE, 2 x USB 3.0). The SX9-HOWL 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.
Being mainly a powerful PCI Express® packet switch, the SX9-HOWL is organized similar to a CompactPCI® Serial system slot controller card, however restricted to the PCI Express® resources of the CompactPCI® Serial backplane.
The SX9-HOWL is linked to the host system by a PCI Express® x4 front panel cabling connector (upstream), and delivers eight PCI Express® links to its backplane connectors (downstream), for up to eight CompactPCI® Serial peripheral cards in a target system. Three links/slots on the CompactPCI® Serial backplane are organized as x4, the other are single lane connections.
Hence, PCI Express® based devices in the target system can be controlled by the remote host system CPU in an identical manner as its local resources.

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Application Notes

General Information


  • PCI Express® external cabling target side adapter
  • PICMG® CompactPCI® Serial standard (CPCI-S.0) system slot controller (PCIe resources only)
  • Single Size Eurocard 3U 100x160mm2, front panel width 4HP
  • cPCI-S Backplane connectors P1, P2, P4, P5 for 8 PCI Express® links
  • Peripheral slots organized x4/x4/x4/x1/x1/x1/x1/x1
  • PCI Express® External Cabling Specification x4 connector 38-pos. (front panel)
  • 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 x 4 allows for up to 20Gbps/s bandwidth
  • 2 x Gen2 PCI Express® 16-port/16-lanes packet switches on-board
  • Option PCIe to dual-port USB 3.0 controller (front panel receptacles)
  • Option 2 x Intel® I210 PCIe to Gigabit Ethernet controller (front panel RJ45)
  • 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 32 years
  • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

Simplified Block Diagram

sx9 blk
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