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CoreModule 920 Reference Manual 5

Chapter 2 Product Overview

This overview presents general information about the PCI/104-Express form factor and the CoreModule 920

Single Board Computer (SBC). After reading this chapter you should understand the following points with

regard to the CoreModule 920.

• PCI/104-Express From Factor

• Product Description

• Major Components (ICs)

• Headers, Connectors, and Sockets

• Product Specifications

PCI/104-Express Form Factor

This product is based on PCI Express architecture and the PCI/104-Express form factor. The PCI/104-

Express form factor affords a great deal of flexibility in system design. You can build a simple system using

only a CoreModule SBC, input/output devices connected to serial, USB, or SATA ports, and the on-board

storage device. To expand a simple CoreModule system, simply add self-stacking expansion modules to

provide additional capabilities, such as:

• Additional serial and parallel ports

• Analog or high-speed digital I/O



Data Acquisition (Analog In/Out)



USB 2.0 expansion modules



IEEE 1394 (FireWire) expansion modules



Standard VGA video output

PCI/104-Express-compliant expansion modules can be stacked with a CoreModule SBC, avoiding the need

for large, expensive card cages and backplanes. These expansion modules can be mounted directly to the

expansion connectors of the CoreModule, with inter-board spacings of ~0.6 inches, so that a 3-module

system fits in a 4.6" x 3.8" x 2.0" space. See Figure 2-1.

One or more PCI/104-Express-compliant modules can be installed on the CoreModule SBC expansion

connectors so that the expansion modules fit within the CoreModule outline dimensions. The PCI/104-

Express form factor allows for several modules to be stacked up or down from the CoreModule expansion

connectors with each additional module increasing the thickness of the package by ~17mm (0.6"). See

Figure 2-1.

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