baxter ARENA - Hardware; Slot # 2: Single Board Computer (SBC)

Arena Service Manual
5.4.2 Slot # 2: Single Board Computer (SBC)
The SBC (sometimes also called Motherboard or Host board) is
highly integrated, combining video and networking functions in a
single board.
5.4.2.1 Hardware
The Instrument is controlled by an Intel Pentium II MMX 266
MHz microprocessor, and three 8040 microcontrollers. The
Pentium microprocessor is located in the SBC. The 8040
microcontrollers are located, one each, on the UF-Proportioning
Controller board, the I/O Controller board, and the Blood Pump
Controller board.
WARNING
Follow proper ESD procedure while handling PCBs.
Figure 5-12. SBC Architecture
The Intel Pentium microprocessor supervises the operation of the
Instrument, with its primary responsibilities being:
• Flat Panel User Interface (video display and touch screen).
Resolution of up to 1024 x 768 @ 64K colors.
• Instrument mode control (Rinse, Prime, Dialyze, etc.)
• Controller communications
• Conducting self tests
• Calibrations
The SBC holds piggy-backed a 64 MB Compact Flash Memory
that contains the operating system.
The SBC also has a 64 MB card of System Dynamic RAM
(SDRAM). The SDRAM is the memory where the computer
5-18 157-1278-912 Rev A
November 2003