FEATURES   19-slot from factor supports PCI-Express, PCI-X and PCI option cards   One SHB Express (PICMG 1.3) System Host Board Slot   One x16 and one x8 PCI Express Slot (mechanical)   Sixteen PCI-X 64-bit/66MHz Slots   Four USB 2.0 backplane I/O connections**   Two 10/100/1000Base-T backplane Ethernet ports**   ATX/EPS right angle power connectors
**Optional USB connectivity provided by PICMG 1.3 System Host Board. Not all SHBs support this capability. Nominal PCB thickness .080" Connector spacing .800" centers Mounting holes .156" diameter All dimensions are inches.
SERVER-CLASS PCI EXPRESS BACKPLANE Trenton's BPX6571 is a server-class backplane that enables the maximum number of high-bandwidth; i.e x4 or greater, PCI Express links from the System Host Board to the backplane's PCI Express option card slots and devices. PCI EXPRESS SERIAL SLOTS PCIE2 is a x16 slot connected to the SHB with a x8 PCI Express link. PCIE2 mechanically supports x16, x8, x4 and x1 PCI Express cards. PCIE1 is a x8 slot driven by a x4 link and supports x8, x4 and x1 PCI Express cards. The actual speed of a PCI Express connection to an option card slot is determined by the SHB's PCI Express link configuration and the auto-negotiation/link training features of PCI Express. SHB SLOT Accepts an SHB Express (PICMG® 1.3) compliant (server-class) processor such as Trenton's current NLT, NLI and future SLT, SLI system host boards. PCI-X PARALLEL BUS SLOTS The sixteen PCI-X slots on the BPX6571 are connected to the SHB via two x4 PCI Express links that each drive a PCI Express-to-PCI-X bridge chip. Each bridge chip provides two 64-bit/66MHz PCI-X channels to support option card slots A1 through D4. PCI-X and universal (i.e. 5V/3.3V combo or 3.3V only) PCI option cards may be used and the bridge chips will throttle-down the bus interface speeds to match any universal PCI or PCI-X card with an interface bus speed less than 66MHz OPTIONAL USB 2.0 INTERFACES The SHB Express specification defines optional I/O routings from the SHB to the backplane. Trenton's BPX6571 takes advantage of this new specification feature by providing two USB 2.0 headers capable of providing up to four USB 2.0 backplane ports. The Trenton NLT/NLI System Host Board supports two USB ports with a factory installed option. Contact Trenton if you are interested in this optional NLT/NLI functionality. OPTIONAL ETHERNET INTERFACES Trenton's BPX6571 backplane supports the optional Ethernet routing feature of the SHB Express (PICMG 1.3) specification. Two 10/100/1000Base-T Ethernet RJ-45 connectors are available for use on the backplane. Data communication performance of the backplane's Ethernet interfaces depends on the Ethernet controller hardware and configuration on the system host board. Consult your SHB Ethernet interface implementation method for details. The SHB OPTIONAL BACKPLANE I/O SUPPORT TABLE explains the backplane I/O capabilities supported by Trenton's PICMG 1.3 System Host Boards. POWER CONNECTORS The BPX6571 backplane is available with a low-profile, right angle power connector suitable for use with either an ATX or EPS power supply. EXTENDED-CURRENT TERMINAL BLOCKS Three extended-current terminal blocks provide additional power capacity for power-intensive applications -- up to 80 Amps of +12V, 120 Amps of +3.3V and 80 Amps of +5V.	POWER INDICATORS Surface-mount LEDs provide a convenient visual check for +5V, -5V, +5V AUX,+12V, -12V and +3.3V power connection and status. CAUTION: Never install or remove the SHB or any option card from the BPX6571 backplane if the +5V AUX LED is GREEN. If the system appears to be off and the+5V AUX LED is GREEN then you need to remove or turn-off the incoming power to the system power supply. AUXILIARY POWER CONNECTOR The +12V power connector is a right angle connector on the BPX6571 used for routing 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. PRINTED CIRCUIT LAYERS The backplane is a six-layer, .080" thick board with three separate signal layers: +5V/+12V, +3.3V and ground. Multi-layer backplane construction provides excellent noise immunity. CONNECTING POWER The combination of new power supply technologies, soft-power control signals available via the Advanced Configuration and Power Interface (ACPI) now supported by PICMG 1.3 SHBs and auxiliary power connectors on PICMG 1.3 backplanes that deliver all of the SHBs power to the edge connectors are requiring a different approach to connecting system power. 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 like the Trenton NLT. The ATX/EPS and +12V power connectors on the BPX6571 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: 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 according to unique system design requirements. Refer to the Appendix B (Power Connection) and Advanced Setup BIOS sections of the Trenton NLT/NLI Technical Reference Manual for more information.
SHB OPTIONAL BACKPLANE I/O SUPPORT TABLE
TRENTON ETHERNET USB SATA SHB LAN0 LAN1 USB0 USB1 USB2 USB3 SATA0 SATA1 NLT1 - - X X - - - - NLI1 - - X X - - - - SLT1 (Q1, '06) - - X X - - - - SLI1 (Q1, '06) - - X X - - - - 1 Requires factory build option, SLT/SLI available Q1, 2006.
MODEL NAME: BPX6571
MODEL# MODEL NAME DESCRIPTION 6571-007 BPX6571-CRA Combo ATX/EPS (right angle connector) with three high-current terminal blocks 6571-008 BPX6571-CST Combo ATX/EPS (straight/vertical connector) with three high-current terminal blocks