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PCA Descriptions
6-2
PCA Descriptions
The sections following provide descriptions of the functions handled by each
PCA.
Control PCA
The Control PCA performs the following functions:
System level processing.
System level control and clock functions, including:
Control of power up and power down sequences.
a.
Storage of configuration selections made by the user.
b.
Storage of operating software, including data for generating
c.
display formats and graphics.
Main interconnection site between the other PCAs.
User interface functions, including:
Generation and control of tones and audio prompts.
a.
Generation and formatting of real-time information for the
b.
display and for the printer.
Control of display backlight and contrast to compensate for
c.
ambient light and temperature.
Control of printer functions.
d.
Control of indicator LEDs for Manual, Sync and Pacer keys.
e.
Control of data to and from the Data Card.
Control of defibrillation functions on the Power PCA:
Initiating a capacitor charge sequence.
a.
Monitoring charge on capacitor.
b.
Initiating a shock delivery sequence.
c.
Control of pacing functions on the Power PCA:
Starting/stopping pacing.
a.
Controlling Rate and Output as selected by user, and monitor-
b.
ing pacing current delivered.
Control of the ECG front ends on the Interface PCA (Leads ECG) and
Power PCA (Pads ECG).
Generation and regulation of the 5 volt logic power supply.
Theory of Operation
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