4535 612 10261 HD11 Service Manual Page 72
CSIP Level 1 Theory of Operation: Functional Description
Sound Card
The Sound card sends audio to and receives audio from the VCR.
Hard Disk Drive (HDD)
The HDD, housed in the PC and connected via an EIDE slot, contains the embedded operating
system, ultasound application software, and COTS software. The HDD stores AP&I data and
ultrasound images.
CD-RW
The CD-RW drive, housed in the PC and connected via an EIDE slot, is a removeable-media
device used for image and report archiving and system upgrading.
Magneto-optical Disk (MOD) Drive
The MOD drive, housed in the PC and connected via an EIDE slot, is a removeable-media device
used for image and report archiving.
Physio Module
The optional Physio module is housed in th E-box and has the following functions:
• Provides ECG monitoring capability
• Processes ECG signals from patient electrodes and deliver the data to the system PC Moth-
erboard through a USB cable
• Sends a detected R-wave to the E-box Interface board for frame triggering
• Provides gain control for ECG waveforms
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