GE MEDICAL SYSTEMS PROPRIETARY TO GE
D
IRECTION 2294854-100, REVISION 3 LOGIQ™ 9 PROPRIETARY MANUAL
Chapter 5 Components and Functions (Theory) 5-39
Section 5-7 Internal I/O (cont’d)
The Internal I/O board performs buffering and distribution of video and control data from various sources
to multiple destinations.
• SVGA (R, G, B and Sync.) are fed from the BEP, directly up to the system monitor. Another set of
RGB can be fed to a color printer.
• Composite video, black and white video and S-Video are buffered and distributed to VCR and
printers.
• The analog Doppler signals are fed from the Spectrum Doppler board to the VCR audio inputs and
through a switch where audio from VCR playback also is input, to the BEP and then to the speakers.
• Serial RS-232 interface signals from the BEP are fed to the destinations; VCR, Color Printer and
Modem.
• Serial USB interface signals from the BEP are fed to the Front Panel and to EIO.
• Remote control signals for printers are generated on the I/O board.
• The Footswitch is connected to the I/O board.
• An AC Power Interface controls power on/off and fan speed.
Figure 5-28 Internal I/O Back End Processor Connections
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