Black Box ServSwitch ACU6001A, Руководство пользователя, Страница: 33 / 68

REMOTE UNIT CONFIGURATION & OPERATION
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Figure 8 Illustration of skew and appearance on test card
Some Cat5e/Cat6 cables require a large green delay. Video quality can
be often be vastly improved by using standard crossover patch cables at
both ends of the link rather than straight patch cables. For details see
Appendix D: Advanced Cabling Issues (Skew), page 48.
Sometimes the optimum skew adjustment will actually be one step out
from that suggested by the test card due to the way some monitors
sample the signal.
The maximum amount of skew correction available is 42nS. This is more
than adequate for the vast majority of cables. However, it may not be
enough if you are using a particularly long run of a cable which exhibits
severe delay skew.
7. If you are using one or more flat panel monitors in the remote console, carry out
auto-adjustment as described in the monitor’s documentation. Sometimes, manual
adjustment of clock and/or phase is also required for optimum results and
minimization of jitter.
Red
Green
Blue
Slower
Faster
In this illustration, Blue is the
slowest signal. To optimize the
image, Red and Green need to
be delayed until they align with
Blue.