Mezzanine I/O Expansion Board •Multifunction Side Card • Suitable for EKF High Performance CPU Carrier Boards

Available as a mezzanine add-on expansion board (aka side board) to the PC1-GROOVE, SC1-ALLEGRO and successor CompactPCI® PlusIO and CompactPCI® Serial CPU cards, the PCS-BALLET provides a number of frequently required I/O functions. In addition, the user can choose between several SATA based on-board mass storage solutions.
For dual- or triple-screen applications (in addition to the primary DP video connector(s) on the CPU carrier board), the PCS-BALLET front panel is equipped with a DisplayPort connector. The on-board USB 3.0 SuperSpeed controller allows for attachment of high speed external devices. Audio and legacy signal support is provided in addition.
The PCS-BALLET is a mezzanine side card, to be fixed on top of a suitable CPU carrier board. The pitch between carrier PCB and mezzanine PCB is 4HP, resulting in a 8HP common front panel for the entire assembly. Up to four mezzanine connectors are in use, for distribution of legacy and high speed I/O signals from the CPU carrier to the side board. These are referred to as HSE (SATA & USB 2.0 High Speed Expansion), EXP (Legacy Expansion), PCIE (PCI Express® x 4), and DP (DisplayPort). The mezzanine connectors are situated on the bottom side of the PCS-BALLET, facing towards their mating CPU card connectors.
The PCS-BALLET also is a carrier board itself, which can accommodate a low profile storage module or SATA drive, and a front panel I/O expansion card as an option.
With respect to the system backplane, it is recommended to have the CPU card system slot on the right edge, in order to prevent loss of a peripheral slot (the PCS-BALLET is then positioned out of backplane shape). For rear I/O, a single slot P1/P2 RIO backplane would be required in addition. With the PCS-BALLET aligned to a CompactPCI® or CompactPCI® Serial backplane slot however, rear I/O is not available (J1/J2 not populated). The PCS-BALLET can accommodate a 2.5-inch SATA drive (SATA01 docking connector). As an alternate, low profile Flash based mezzanine storage modules are available that fit on the PCS-BALLET (MOD1 connector). The C42-SATA module e.g. is equipped with a 1.8-inch SATA Solid State Drive (SSD). The C47-MSATA module can hold two mSATA Mini Cards.
The SATA channels related to these storage options are derived from the CPU carrier card via the mezzanine connector HSE. The PCS-BALLET is equipped with on-board SATA redrivers for optimum signal integrity. The storage module connector MOD1 comprises two SATA ports.
The maximum optional data storage capacity can be achieved when employing the C20-SATA dual drive 2.5-inch SSD/HDD module on the PCS-BALLET (mezzanine connector MOD2). If this ordering option was chosen, the PCS-BALLET comes with an on-board PCIe to SATA dual-port 6Gbps controller assigned to MOD2.
When populated with two drives, top and bottom mount, the C20-SATA is not a low profile mezzanine module. Additional front panel width would be required for the entire assembly comprised of CPU carrier card, PCS-BALLET and C20-SATA (12HP typically in total). Hence, a combination of both, the C20-SATA storage module and the C32-FIO front I/O mezzanine module may be considered for a 12HP card stack.
As an option, the PCS-BALLET can be populated with up to three on-board SATA latching receptacles, for attachment of system internal drives via SATA cable assemblies. Two more SATA channels are wired to the rear I/O connector J2, as an option.
In addition, legacy I/O would be available trough the J1/J2 rear I/O connector suite, such as USB 2.0, UART, KB/MS. However, rear I/O usage requires a suitable single slot backplane which mates the PCS-BALLET, and in addition a custom specific rear I/O module.

Downloads & Ressources


Audio | SATA | USB3

Expansion Modules

Suitable CPU Carrier Cards
SATA Storage Mezzanine Modules for PCS-BALLET
Front Panel I/O Mezzanine for PCS-BALLET


  • 3U/4HP Mezzanine Side Card for EKF CompactPCI® PlusIO & CompactPCI® Serial CPU boards
  • 2 x USB 3.0 xHCI SuperSpeed F/P connectors
  • DisplayPort F/P connector
  • Analog Audio F/P jacks
  • Either RS-232 F/P D-Sub (male) or Digital Audio (stuffing option) D-Sub (female)
  • Option C32-FIO legacy front panel I/O (RS-232, KB/MS, Audio – additional 4HP F/P width)
  • Integrated front panel CPU card and PCS-BALLET (8HP in total, 12HP when C32-FIO third floor mezzanine is installed in addition)
  • Option on-Board SATA SSD/HDD 2.5-inch
  • Option C20-SATA – single/dual 2.5-inch SSD/HDD mezzanine card
  • Option C41-CFAST – CFast™ SSD socket mezzanine card
  • Option C42-SATA – 1.8-Inch Solid State Drive mezzanine card
  • Option C47-MSATA – dual mSATA Module mezzanine card
  • Up to three SATA connectors for system internal devices
  • Rear I/O option J1/J2 (SATA, USB, KB/MS, UART, GPIO)
  • Long Term Availability
  • Coating, Sealing, Underfilling on request
  • RoHS compliant 2002/95/EC
  • Operating temperature: 0°C to +70°C (industrial temperature range on request)
  • 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
  • EC Regulations EN55022, EN55024, EN60950-1 (UL60950-1/IEC60950-1)

Simplified Block Diagram

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