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BPX6736 |PICMG 1.3| PCI EXPRESS BACKPLANE by Trenton Technology Download Manual View Block Diagram View Mechanical Drawing View Configuration Detail View Model Numbers

BPX6736 |PICMG 1.3| PCI EXPRESS BACKPLANE

Description

Trenton's BPX6736 is butterfly backplane designed for use in 2U chassis enclosures. Side A of this server-class backplane supports one PICMG 1.3 SHB, one x16 and one x8 PCI Express® mechanical slots each driven with a x8 PCIe link from the SHB. Side A also includes a USB Audio interface. Side B includes two x8 PCIe slots driven with x1 links from an SHB like a Trenton MCG-series.

FEATURES

  • Butterfly form factor supports PCI Express® option cards
  • Supports 2U chassis designs
  • One SHB Express (PICMG® 1.3) Server-class System Host Board Slot One x16 PCI Express Slot (mechanical)Three x8 PCI Express Slots (mechanical)
  • Audio port for speaker and microphone interface

STANDARDS

PICMG 1.3 - Server Class

FORM FACTOR

2U Butterfly, one segment

DIMENSION ENVELOPE

3.15” x 12.9”

See mechanical layout for detailed dimension information.

NUMBER OF PROCESSOR SLOTS

1- Accepts industry standard PICMG 1.3 compatible server-class system host boards.

OPTION CARD SLOTS

4

EXPANSION SLOT

No

Suggested SHB/SBCs

MCXT
MCXT-E
MCXI
SLT
SLI
NLT
NLI

ETHERNET INTERFACES

Trenton's BPX6736 backplane supports the optional Ethernet routing feature of the SHB Express (PICMG 1.3) specification. One 10/100/1000Base-T Ethernet RJ-45 connector  (P13) is available for use on the Ethernet version of the backplane. The Ethernet port is located on Side B of the backplane. This required connector location may necessitate a mechanical modification to the chassis in order to facilitate proper backplane mounting within the enclosure.

Consult your SHB’s Ethernet interface implementation method for details.

I/O INTERFACES

Trenton's BPX6736 provides one USB 2.0 header  (P11) capable of supporting two general purpose USB 2.0 backplane interface ports.

Consult your SHB’s USB interface implementation method for details.

POWER INDICATORS

LED indicators for +5V, -5V, +5V AUX*, +12V and +3.3V power connections.

*Never install or remove the SBC or any option card from the backplane if the +5V AUX LED is GREEN.
Remove power from the system before doing so.

POWER CONNECTORS

The BPX6736 backplane is available with low-profile right-angle power connectors suitable for use with either an ATX or EPS power supply.

The +12V power connectors on the BPX6736 route auxiliary power to the SHB's edge connectors. This new capability of PICMG 1.3 compliant SHBs and backplanes eliminates the need for auxiliary power connections on the system host board.

*EPS is recommended for use with Dual, high-performance Intel Xeon processor Single Board Computers.

OPTION CARD SLOT DETAILS

PCI Express Slots – Side A
PCIe2 – x8   mechanical  / x8 electrical link directly from SHB
PCIe4 – x16 mechanical  / x8 electrical link directly from SHB
PCI Express Slots – Side B
PCIe1 – x8 mechanical / x1 electrical link directly from MCX-series SHB
PCIe3 – x8 mechanical / x1 electrical link directly from MCX-series SHB
Trenton SHBs support the auto-negotiation and link training features that enables all of the option card slots to support x8, x4 and x1 PCI Express cards with PCIe4 also capable of supporting x16 PCI Express option cards with a x8 PCIe link.
Mechanical interferences may exist between the SHB's cooling solution and certain types of option card heat sinks used on PCI Express option card installed in backplane slots PCIe2 and PCIe4. To ensure proper mechanical clearances regardless of option card heat sink type, Trenton recommends using either half-length or quarter-length PCI Express option cards in these backplane slots.
See mechanical layout for detailed slot routing information.

MISCELLANEOUS BACKPLANE INFORMATION

USB Audio Controller
The audio controller on the BPX6736 backplane eliminates the need to dedicate an option card slot to a sound card. The USB audio controller supports a variety of speaker, headset and microphone configurations. The high-performance stereo audio ADC/DAC, general purpose I/O connections and codec functionality are key features of the BPX6736's audio controller (P30).

The USB4 port from the Trenton MCX-series SHB provides the input for the USB audio controller and the USB4 input becomes Audio0 on the BPX6736 backplane. If a Trenton NLT/NLI or SLT/SLI SHB is used, then the SHBs must be factory-equipped with the optional USB routing to the backplane. Likewise non-Trenton SHBs must provide the optional USB I/O backplane routing defined in the PICMG 1.3 specification in order to enable the audio functionality of the Trenton BPX6736 backplane

Connecting Power
A new approach is required to connect system power due to the combination of new power supply technologies and the soft-power control signals available via the Advanced Configuration and Power Interface (ACPI). ACPI signals are now supported by PICMG 1.3 SHBs and backplanes. Auxiliary power connectors located on the PICMG 1.3 backplanes now deliver all of the power directly to the edge connectors of the SHB.

Auxiliary power connectors on the backplane are provided to help improve system Mean Time To Repair (MTTR). All power can be delivered to the SHB via the board's edge connectors. Trenton's PICMG 1.3 SHBs and backplane SHB edge connector slots have ample power pins available to meet the power demands of high-performance dual processor SHBs. The ATX/EPS and +12V power connectors on the BPX6736 backplane also have an ample number of power pins available to meet these demands. The system designer needs to be aware of the potential power demands of the entire system including the particular SHB to ensure that both the power supply and the power connectors in the cable harness can safely deliver the necessary power to drive the entire system.

Specific implementations of ACPI signals, ATX/EPS power supply type and the operating system software will determine the specific connection method for the power supply. For example the use of the Power Good (PWRGD), Power Supply On (PSON#), Five Volt Standby (5VSB) and the Power Button (PWRBT#) ACPI or soft power control signals require the following connection method: 

bpx detail diagram

 

 

 

 

 

 ACPI signal usage is optional and may be turned off using the SHBs BIOS and/or signal jumpers. Specific power connections and BIOS parameters will differ depending on unique system design requirements. Refer to the Appendix B (Power Connection) and Advanced Setup BIOS sections found in the Technical Reference Manual for your specific Trenton system host board for more information.