| PCI Express Serial Slots |
PCI Express slot one on the BPX3/14 is a x16
slot that mechanically supports x16, x8, x4 and x1 PCI Express
cards. PCI Express slot two is a x8 slot that mechanically
supports x8, x4 and x1 PCI Express cards. PCI Express option
card slot (PCE1) is driven directly by the SHB via a x4 PCI
Express link between the card slot and the SHB slot. The
actual speed of the PCI Express connection between the SHB
and option card slot PCE1 depends on the SHB’s PCI
Express link configuration and the auto-negotiation/link
training features of PCI Express. In order to use the second
PCI Express slot (PCE2) an expansion board must be used on
the system host board. The expansion board provides a x4
PCI Express electrical connection to the PCE2 slot that enables
communication between the SHB and the PCI Express option
card. |
| PCI-X Bus Slots |
Provides fourteen PCI Local Bus slots which
support PCI-X and universal PCI option cards. |
| SHB Slot |
Accepts an SHB Express (PICMG® 1.3) compliant
processor. |
| PCI Express-To-Dual PCI-X Bridges |
The PCI Express-to-Dual PCI-X bridges ease
the transition to PCI Express by supporting the PCI Local
Bus as well as enabling 64-bit PCI-X architectures capable
of running at speeds up to 133MHz. The bridge chips are fully
compliant with the PCI-X Addendum to the PCI Local Bus Specifications
Revision 1.0 and the PCI Local Bus Specification 2.2. |
| USB 2.0 Interfaces |
The SHB Express specification defines optional
I/O routings from the SHB to the backplane. |
| Power Connectors |
The backplane is available with an ATX or
EPS power connector. The EPS configuration is recommended
for use with system host boards. Either the ATX or EPS configurations
can be used with dual, low voltage Intel® Xeon™ processors
or single processor configurations. |
| Auxiliary Power Connector |
A +12V power connector is also provided 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. |
| Extended-Current Terminal Blocks |
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. |
| Ethernet Interfaces —10/100/1000Base-T |
The 14-slot backplane supports the optional
Ethernet routing feature of the SHB Express 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. |
| Printed Circuit Layers |
The backplane is an eight-layer, .062” thick
board with three separate signal layers: +5V, +3.3V and ground.
Multi-layer backplane construction provides excellent noise
immunity. |
| Power Indicators |
The power indicators provide a convenient
visual check for +5V, -5V, +5V AUX,+12V, -12V and +3.3V power
connections. |
