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Irda/serial Communication Manager; Communication Software Module; Support Services - Philips M3001A Service Manual

M3/m4 monitors,measurement server,measurement server extensions.
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Monitor Theory of Operation

IrDA/Serial Communication Manager

The IrDA/Serial Communication manager is responsible for sending raw data to the local
recorder (serial protocol) or printer (in a format that complies with the IrDA (Infrared Data
Association) standard). The IrDA/Serial Communication manager provides a general printer
or recorder device interface to the printer or recorder manager, and maps the general printer/
recorder services to the device protocol. The general printer services are as follows:
• Establishing and terminating the printer/recorder connection.
• Transferring data to the printer/recorder.
• Retrieving the printer/recorder status.
The IrDA/Serial Communication manager feeds the printer/recorder status (time out, paper
out, and so on) back to the printer or recorder manager, which in turn notifies the user of any
errors in the print/record process.

Communication Software Module

The communication module maintains a data link between the Monitor, the Measurement
Server and the Measurement Server Extension, and controls the exchange of data between
them. This data includes the following:
• Measurement data.
• status information.
• Control information.
• Configuration data.

Support Services

The support services software module contains miscellaneous functions that both the
Monitor, the Measurement Server and the Measurement Server Extension require. These
functions are as follows:
• Date and Time.
• Settings Handler.
• Status Revision and Display.
• Heart Rate Selector.
Introduction to the Instrument
15

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