Visual Circuits ReelTime 4, Руководство пользователя

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Appendix
55
Audio Video Breakout Cables
For all cables, 75-ohm cable is recommended for all video outputs
and inputs if applicable. The challenge to making cables for RGB
and Daughter Card (Genlock) decoder boards is the number of
wire leads required. In these instances, 24 of the 25 pins available
are used and often do not feed into standard D Sub shells.
When attaching the leads, solder cup connectors work fine, but
crimp type pins provide more durability and hold up better under
strain. An example of a cable that works well for video is Belden
series 9221 mini-coaxial cable, but other cable manufacturers can
also be used. Audio lines need to be quality audio wire.
Ensure that all leads are properly grounded within the D Sub and
that proper strain relief is provided to prevent separation of wires
from the pins or connectors. Also ensure that all connectors,
whether BNC, RCA, or other are of high quality material so as not
to break the 75-ohm impedance of the line. Also ensure all display
devices are properly grounded to maximize signal strength. Refer
to the following chart for pin-out connections.
NOTE
Visual Circuits does not sell or stock cable-building
supplies or components. Visual Circuits also does
not stock patch cables or related accessories.
Please contact an Audio/Video specialist for
assistance.