MATLAB XPC TARGET 4 - IO Manuale Utente Scaricare il pdf (Pagina 46)

2 Form Factors

2-20

This system includes chassis, enclosure, connector breakouts, and an internal

power supply. All-in-one embedded systems are designed for the same types of

applications (for example, mobile controller applications) as PC/104 and Single

Board Computers (SBC).

All-in-one embedded PCs are the right choice in the following situations:

• Space is extremely limited, such as in mobile applications.

• The system is placed in a harsh environment (mainly mobile applications).

• The system should be of a black box type in which the system border is

defined at the enclosure level.

The acquisition cost for an all-in-one embedded PC is slightly higher than a

PC/104 or SBC system. However, you do not have the additional cost of

designing and manufacturing an enclosure because the system includes the

enclosure.

Performance

With an all-in-one embedded PC, the size of the system is not defined so that

you can use larger and newer CPU classes. However, the CPU class is limited

by heat dissipation and power restrictions. Typical all-in-one embedded

systems use low power Pentium II or Pentium III CPUs running at 266 – 400

MHz. Since all-in-one embedded PCs usually use PC/104 for I/O expansion, the

resulting overall performance is similar to a PC/104 system.

I/O Expandability

All-in-one embedded computers usually use the PC/104 and PC/104+ bus to

expand the base system with I/O connectivity. Therefore, the same broad choice

of I/O boards for PC/104 stacks is available. However, since all-in-one

embedded PCs have a specific enclosure, there is a limit to the number of

PC/104 I/O boards that you can use. Vendors may offer a number of enclosure

options to accommodate additional I/O boards.

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MATLAB XPC TARGET 4 - IO Manuale Utente Pagina 46