Black Box ACU2022A, ACURA001A, ACU2222A, ACUR001A, ACURA002A, ACU2201A, ACU2028A, ACU2001A, ACUR002A Red

SERVSWITCH￿ BRAND CATX KVM EXTENDER FAMILY

Slower

Red

Green

In this illustration, Blue is the slowest signal. To optimize the image, Red and Green need to be delayed until they align with Blue.

Blue

Faster

Figure 12 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 55.

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 consoles, carry out auto-adjustment as described in the monitor’s documentation. Sometimes manual adjust of clock and/or phase is also required for optimum results and minimization of jitter.

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