The BPX3/8 PCI Express Backplane
The BPX3/8 PCI Express backplane provides electrical connections for a single or dual-processor single board computer, two PCI Express, four PCI-X and four PCI plug-in I/O cards. The backplane design places the single board computer slot near the center of the backplane which enables more efficient air flow within a rackmount computer chassis.
The SBC’s two x8 PCI Express links drive the PCIe card slots directly while the remaining x4 link enables the dual-channel PCIe-to-PCI-X bridge chip that drives the four PCI-X slots and provides the interface to the PCI-to-PCI bridge that drives the four 64-bit/33MHz PCI slots. The ten option card slots on the PCI Express backplane support standard PCIe, PCI-X and PCI plug-in I/O cards typically used in communication platforms.
Key features of the BPX3/8 PCI Express backplane include:
- Supports one PICMG 1.3 combo or server-class SBC
- SBC slot located near the center of the backplane improves chassis air flow
- Supports two PCI Express and fourteen PCI-X/PCI cards
- 2 – x8 PCI Express electrical / x16 mech. connector
- 4 – 64-bit/66MHz PCI-X
- 4 – 64-bit/33MHz PCI
- One, dual-channel PCIe-to-PCI-X bridge chip
- One, PCI-to-PCI bridge chip
- Long-life backplane with 7+ years of availability enhances system design stability
14-slot form factor supports one PICMG 1.3 SBC and PCI Express, PCi-X and PCI option cards
Board dimensions: 11.1” x 11.9”
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
Two, x8 PCIe slots (x16 mechanical) driven directly from SBC
Four, PCI-X/PCI slots, 64-bit/66MHz
Four, PCI slots, 64-bit/33MHz
See datasheet or mechanical layout diagram for detailed slot routing information.
11.1″ x 11.9″ (14-slot)
2 – x8 PCI Express 2.0/1.1 electrical / x16 mech. connectors
4 – 64-bit/66MHz PCI-X
4 – 64-bit/33MHz PCI
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Single or dual-processor PICMG 1.3 Combo or Server Class SBCs
Agency Approvals and Compliance
Designed for UL60950 and CAN/CSA C22.2 No.60950-00, EN55022:1998 Class B, EN61000-4-2:1995, EN61000-4-3:1997, EN61000-4-4:1995, EN61000-4-5:1995, EN61000-4-6:1996, EN61000-4-11:1994
The standard BPX3/8 backplane is available with vertical or low-profile right angle power connector suitable for use with either an ATX or EPS power supply.
+5V, -5V, +5V AUX*, +12V, -12V and +3.3V power connection and status.
Operating Temp: 0°C TO 60°C
Storage Temp: -20°C to 70°C
Humidity: 5% to 90%, non-condensing
Trenton’s BPX3/8 is a lead free, RoHS compliant backplane.