Avlink VAX-2088 - Manual (Page 10)

VAX Matrix Switching System—User Manual
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VGA card. The VGA connector is a D-sub connector with 15 pins in 3 rows (each row has 5
pins).
Presently, most computers connect with external displays via analog VGA connectors. The
computer internally generates digital graphics data to be converted by the graphics card
digital/analog converter into the R, G, and B process color signals, and coutour and gamut
synchronous signals which are transmitted to the display via the cable. Regarding analog display
equipment such as the analog CRT display, the signals are being sent directly to the
corresponding processor circuit and drive the controlling Cathode Ray Tube into graphics display.
Digital displays such as LCD and DLP are usually equipped with A/D (Analog/Digital)
converters to convert analog signals into digital signals. Unavoidably, some losses to graphics
happen after two times of conversion from analog to digital and vice versa. It’s understandable to
use VGA connectors in CRT monitors, but to use it in LCD displays the quality of graphics
display is likely to degrade in the process of conversion.
Different models of the VAX matrix system provides a different number of input/output
jacks for users to connect to different audio/visual equipment including CD/DVD players,
graphics workstations, and number displays. The output terminals can be connected to projectors,
video recorders, displays and multiplexers and so on.
The RCA connecting terminal----audio/video port: The 4-hole RCA Jack is a conventional
audio connector. Its installation hole measures 14x18mm.
The VAX Matrix supports various AV signal sources.
AV Connector—standard AV Input RCA）Connector:
Type: Audio connectors are in pairs (left/right channels) (white/red) and video connector
(yellow)
VAX matrix RCA jack connection, see Figure 5-2 below: