Bpx3/2 /backplane Designed By Trenton Technology

BPX3/2

SMALL FACTOR PCI EXPRESS BACKPLANE FEATURES

®

PICMG 1.3 System Host Board

· Compact mechanical design for space-limited applications x8 PCIe Link* (A0)

USB Connectors (P11 & P12)

x16 PCIe Connector

· Server-class backplane configuration featuring PCI Express and PCI/PCI-X option card support

x16 PCIe Connector

· One SHB Express (PICMG 1.3) System Host Board Slot

BPX3/2 Backplane System Host Board Slot (Edge connectors A, B & C)

x8 PCIe Link* (A2)

64-bit/133MHz PCI-X

I/0 Power Connector (P10) x4 PCIe Link (B0) ATX or EPS Power Connector P1

PCI-X Connector

PCI Express to Dual PCI-X Bridge

+12V Power Connector P2

· Two x16 PCI Express Slots (mechanical) PCI-X Connector

64-bit/133MHz PCI-X

· Two PCI-X 64-bit/133MHz Slots · Four USB 2.0 backplane I/O connections** · ATX/EPS right angle power connectors

*Assumes Trenton NLT, NLI, SLT or SLI system host board

Specifications 4.193 3.528* 3.393 3.093 .800 P12

USB

x8 PCIe Link (A0) PCIe1

0.400 0.065*

Trenton’s BPX3/2 is a server-class backplane. A server class backplane enables the maximum number of highbandwidth; i.e x4 or greater, PCI Express links from the System Host Board to the backplane’s PCIE option card slots.

0.400

SHB SLOT

0.386*

P11

SLTA1 SLTB1

PCIe2

SERVER-CLASS PCI EXPRESS BACKPLANE

* = Pin 1

Accepts an SHB Express (PICMG® 1.3) compliant processor. Trenton’s current NLT, NLI and future SLT, SLI system host boards (SHBs) are examples of compliant PICMG 1.3 processors. Single Board Computer or SBC is another common term used to describe these boards. The BPX3/2 is optimized to fully utilize all available PCI Express links from server-class SHBs like Trenton’s NLT, NLI, SLT and SLI.

1.225* 6.325

PCI EXPRESS SERIAL SLOTS

6.725

x8 PCIe Link (A2)

11.100

x4 PCIe Link (B0)

x16 mech. x8 elect. PCIe to PCI-X Bridge

11.900 PCI-X 64-bit/133MHz

P1

1

P2

1

Two PCI-X slots (slots SLTA1 and SLTB1) on the BPX3/2 are connected to the SHB via a x4 PCI Express link (B0) via a PCI Express-to-PCI-X bridge chip. The bridge chip provides two 64-bit/133MHz PCI-X channels. Slots A1 and B1 support both PCI-X and universal (i.e. 5V/3.3V combo or 3.3V only) PCI option cards. The bridge chip will throttle-down the bus interface speed to match any card placed in either slot A1 or B1 that has an interface bus speed less than 133MHz.

SHB Slot

P19 P6 P7 P9 P8

2.893 3.293

P10

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.

PCI-X PARALLEL BUS SLOTS

JU4 +5VAux +3.3V +12V -12V -5V +5V

Two PCI Express slots (slots PCIE1 and PCIE2) on the BPX3/2 are x16 slots that mechanically support x16, x8, x4 and x1 PCI Express cards. The PCI Express option card slots are driven directly by the SHB via two x8 PCI Express links: A0 and A2.

1

0.400

Copyright c2006 Trenton Technology Inc.

**Optional USB connectivity provided by PICMG 1.3 System Host Board. Not all SHBs support this capability. Nominal PCB thickness .062” Connector spacing .800” centers Mounting holes .156” diameter All dimensions are inches.

Trenton Technology Inc. 2350 Centennial Drive, Gainesville, Georgia 30504 Sales: (800) 875-6031 Phone: (770) 287-3100 Fax: (770) 287-3150 E-mail: [email protected] Web: www.TrentonTechnology.com

OPTIONAL USB 2.0 INTERFACES

CONNECTING POWER

The SHB Express specification defines optional I/O routings from the SHB to the backplane. Trenton’s BPX3/2 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.

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.

POWER CONNECTORS The standard BPX3/2 backplane is available with a low-profile, right angle power connector suitable for use with either an ATX or EPS power supply. An optional BPX3/2 is available with straightin or vertical power connectors. Using straight-in power connectors may interfere with a full-length option card placed in the PCIE3 slot.

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 BPX3/2 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 also a right angle connector on the standard BPX3/2 and provides 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. Optional straight-in or vertical connectors are available.

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 highperformance, dual processor SHBs like the Trenton NLT. The ATX/EPS and +12V power connectors on the BPX3/2 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: Power Supply PWRGD

Trenton PICMG 1.3 Backplane SHB Slot

PSON#

PRINTED CIRCUIT LAYERS

5VSB

The backplane is a six-layer, .062” thick board with three separate signal layers: +5V/+12V, +3.3V and ground. Multi-layer backplane construction provides excellent noise immunity.

Rtypical = 8.2k W

PWRBT#

Power On Switch Normally Open Momentary

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 SHB NLT1 NLI1 SLT1 (Q1, ‘06) SLI1 (Q1, ‘06)

ETHERNET LAN0 LAN1 -

-

USB USB0 USB1 USB2 USB3 X X X X

X X X X

-

-

SATA SATA0 SATA1 -

-

1

Requires factory build option, SLT/SLI available Q1, 2006

MODEL NAME: BPX3/2 MODEL#

MODEL NAME

DESCRIPTION

6526-007 6526-008

BPX3/2-CRA BPX3/2-CST

Combo ATX/EPS (right angle connector) Combo ATX/EPS (straight/vertical connector, optional)

Trenton Technology Inc. 2350 Centennial Drive, Gainesville, Georgia 30504 Sales: (800) 875-6031 Phone: (770) 287-3100 Fax: (770) 287-3150 E-mail: [email protected] Web: www.TrentonTechnology.com