2-20
250 Series Maternal/Fetal Monitor
Revision D
2020551-001
Equipment Overview:
Theory of Operation
Digital System Processor (DSP) Display PWA
The DSP Display PWA consists of two independent functioning modules: the DSP
and the Display interface. The DSP processes analog and digital data from the front-
end modules and interfaces to the main processor. The ECG and ultrasound analog
information is processed and heart rates are output to the main board via a shared
memory. Digital pressure information is received, processed, and also sent to the
shared memory. The Display section, consisting mainly of a shared memory and
timing generator, provides the interface between the LCD and the main processor.
Circuitry for the main processor to adjust the brightness of the LCD is provided
through a DC-to-AC inverter. RS-232 communications between the Main Board and
the UI keypad PWA are routed through the DSP board.
Summary of Contents for Corometrics 250 Series
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Page 55: ...3 1 250 Series Maternal Fetal Monitor Revision D 2020551 001 3 Installation ...
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Page 240: ...B 2 250 Series Maternal Fetal Monitor Revision D 2020551 001 Alarms Summary For your notes ...
Page 243: ...Revision D 250 Series Maternal Fetal Monitor C 1 2020551 001 C Electromagnetic Compatibility ...
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