Black Box ServSwitch ACU2 01A-R2, User Manual

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SERVSWITCH
™
BRAND CATX KVM EXTENDER FAMILY
40
The monitor sometimes goes blank for a second or two.
Check that the interconnect cable is not routed near power lines or other sources of
electrical interference. Use shielded STP/FTP cable instead of UTP cable ensuring
that the shield connection is maintained between the extender units.
Check system grounding. The Remote Unit has an isolated power supply and relies
on obtaining a ground reference through the connected monitor. Some monitors on
the market have an external PSU which itself may be isolated from power ground.
If this is the case, and you are experiencing monitor blanking, you may need to
consider grounding the Remote Unit chassis (to power ground) or replacing the
monitor’s power supply with a non-isolated model.
If this is a persistent problem, contact Technical Support.
The PC won’t boot into the correct graphics mode.
Check that DDC Emulation is enabled (see page 35). If you are using a non-
standard resolution, transfer the monitor’s DDC information to the Local Unit (see
page 36).
Jitter is evident on video.
Adjust the clock and/or phase on your flat-panel. Contact Technical Support if this
fails to improve the situation.
Are you testing a system using a coiled drum of CATx cable? Try uncoiling the
cable. If this solves the video jitter, you should not have a problem after full
installation.
The image is not stable and is blanking regularly.
Re-power the Remote Unit.
Can the extender be used with RGB video?
Yes.
There is a slight color change when I increase delays to correct skew.
With certain monitors, there may be a slight color change when you increase the
color delay. This is due to a contrast change on that particular color and may easily
be compensated for by adjusting the monitor’s color balance.