4-10 Product Principle
Main functions of the digital board are:
Standard COM-E socket;
Back-end video processing, realize CPU module video output extending.
a) DVI, 2 channels, used for main monitor and IOBOX board external display port, the
resolution should support 1680×1050@60Hz
b) VGA, 2 channels, one channel is used for external VGA port display extending,
resolution 1680×1050＠60Hz. The other channel is used for touch screen display, the
resolution should support 1024×768＠60Hz.
c) Composite Video, 1 input, 2 outputs, used for external video output and internal B/W
video printer, support PAL/NTSC switching.
d) S-Video, 1 input, 1 outputs, support PAL/NTSC switching.
e) HDMI port, 1 channel, not support audio, the resolution are the same as that of the
main monitor.
Audio processing
a) Audio 1 input, 1 output, left and right stereo
b) Power amplify output, the maximum single channel power is 12W, left and right stereo
c) Support external MIC input.
Port support
a) G-bit Ethernet port, 1
b) WiFi port
c) Support footswitch, USB port
d) Video print control port, 2, for both B/W and color
e) SATA port, 2, DVD and HDD
f) USB port, 10 channels, of which, 6 for external (2 at the front side, 2 at the lateral side and
2 at the backside), 4 for internal (connect the touch screen, keyboard, audio/video
collection, digital video compress)
Communication bus
a) PCIE×4, 1channel, front-end data and control communication port.
b) PCIE×1, 1 channel, WiFi module support
c) UART, 4 channel, 2 power modules, 1 external serial port, 1 DVR control port (reserved),
the external serial port is transferred by USB, other serial ports will be transferred by LPC
bus through multifunction.
d) SMBUS, 1 channel, reserved for WiFi module
e) LPC, used for multifunctional communication control and transfer extending for part of the
serial ports.
Besides, there is a multifunctional FPGA on the digital board for multifunction controlling, the
FPGA takes charge of video format conversion, back-end control, port extending, etc. It mainly
includes:
Display extending:
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