BPG6544 PCI Express Backplane

Key Features

  • Wide Range of SBC Options
  • 1-x16 & 1-x4/x1 PCIe I/O Card
  • 5-64-bit PCI-X Slots
  • 2-32-bit PCI & 2-ISA Slots

The BPG6544 PCI Express Backplane

The BPG6544 PCI Express backplane supports a single-processor single board computer, one IOB33 PCIe link expansion module, two PCI Express, five PCI-X, two PCI and two ISA plug-in I/O cards.  The unique backplane design places the PICMG 1.3 SBC slot near the center of the backplane to enable more efficient air flow within a rackmount computer chassis.

The SBC’s PCI Express links drive the PCIe card slots directly.  An additional x4 PCIe link from the SBC enables a dual-channel PCIe-to-PCI-X bridge chip to interface the PCI-X slots into the system.  The 32-bit/33MHz PCI slots are driven directly from the SBC’s optional edge connector D PCI interface while a PCI-to-ISA bridge is used to establish communication between the SBC and the backplane’s two ISA plug-in I/O card slots.

The eleven option card slots support standard PCIe, PCI-X, PCI and ISA plug-in I/O cards typically used in military and industrial automation systems.

Key features of the BPG6544 PCI Express backplane include:

  • Supports one PICMG 1.3 combo or graphics-class single board computer
  • SBC slot located near the center of the backplane improves chassis air flow
  • Supports two PCI Express, five PCI-X, two PCI and two ISA cards
    • 1 –  x16PCI Express electrical / x16 mech. connector
    • 1 –  x1/x4 PCI Express electrical# /  x8 mech. connector From IOB33 module on the SBC — link width is SBC dependent
    • 1 – 64-bit/133MHz PCI-X
    • 4 – 64-bit/66MHz PCI-X
    • 2 – 32-bit/33MHz PCI
    • 2 – 8-bit ISA
  • One dual-channel PCIe-to-PCI-X bridge chip
  • One PCI-to-ISA bridge chip
The BPG6544 PCI Express backplane is designed, manufactured and supported in the USA, and backed by a 5-year warranty.

Tech Specs

Model Number


Form Factor

14-slot factor, one segment


Board dimensions: 12.3” x 12.9”

The nominal backplane thickness is 0.080”; however, the backplane mounting holes are recessed 0.018” on the bottom to provide an effective PCB thickness of 0.062” for use in the chassis design process.


PCI Express Slots
One, x4/x1 PCIe slot (x8 mechanical) from SBC via an IOB33 module
One, x16 PCIe slot (x16 mechanical) driven directly from SBC

Note:  A TSB7053 SBC provides a x4 PCIe link to slot PCIe1 and a TQ9 or TML provides a x1 link

Four, PCI-X/PCI slots, 64-bit/66MHz
One, PCI-X slot, 64-bit/133MHz
Two, PCI slots, 32-bit/33MHz

ISA Slots
Two, 8-bit ISA slots

See datasheet or mechanical layout diagram for detailed slot routing information.


12.3″ x 12.9″ (14-slot)

Card Slots

1 – x16 PCI Express 2.0/1.1 electrical / x16 mech. connector
1 – x4/x1 PCI Express 2.0/1.1 electrical# / x8 mech. connector
1 – 64-bit/133MHz PCI-X
4 – 64-bit/66MHz PCI-X
2 – 32-bit/33MHz PCI
2 – 16-bit/8MHz ISA

#From IOB3x on SBC / link width SBC dependent

Suggested SHB/SBC’s

Single-processor SBC’s




TSB7053 Single Board Computer

TSB7053 Details


TQ9 Single Board Computer

TQ9 Single Board Computer

TQ9 Details


TML Single Board Computer

TML Single Board Computer

TML Details

SHB Configuration

PICMG 1.3 Combo or Graphics Class with the 32-bit/33MHz PCI interface on SBC edge connector D

Agency Approvals and Compliance

Designed for UL60950 and CAN/CSA C22.2 No.60950-00

Power Connectors

The BPG6544 backplane is available with low-profile right angle and vertical power connectors suitable for use with either an ATX or EPS power supply.

Power Indicators

+5V, -5V, +5V AUX*, +12V, -12V and +3.3V power connection and status.


Operating Temp:  0°C to 60°C
Storage Temp: -40° to 70°C
Humidity: 5% to 90% non-condensing

The BPG6544 is a lead-free, RoHS compliant backplane.



Product Manual
Mechanical Drawings
Block Diagram
Configuration Details


Single Board Computers



IOB33 PCIe and IO Expansion Board

IOB33 PCIe and IO Expansion Board

IOB33 Details

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