Black Box SERVSWITCH ACU1006DRA, Руководство пользователя

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RACKMOUNT SERVSWITCH™ BRAND CAT5 KVM EXTENDER LOCAL HUBS
Each character has separated into overlapping sets of red, green, and blue pixels; the effect is
like trying to watch a 3-D movie without 3-D glasses.
1. Check the interconnect cables between the Rackmount Extender Local Hub
and the affected Remotes. Are they solid-core cable, rated as Category 5? Are
they intact along their length and securely connected at both ends? And are
they wired correctly? (Compare the cable’s specs with those listed in
Section 4.2.5 and its wiring with that shown in Appendix A .)
2. Check the video-extension cabling, patch-panel video connections, and other
video connections in the system. Make sure everything is properly and
securely attached.
3. The video compensation might not be set correctly. See Section 6.4 .
4. Check the settings of the distance jumpers in the affected Remotes; you might
need to try a higher setting. See Section 5.2 .
The monitor sometimes loses sync, causing it to go blank for a second or two.
This could happen if your electrical power system is very noisy (particularly on the
ground lead). Also, don’t route your interconnect cable anywhere near power lines
or other powerful sources of interference such as generators, motors, or
fluorescent lights. If this is a persistent problem, please discuss it with Black Box
Technical Support.
I only need video, serial, or audio extension—not keyboard or mouse control—but I can’t get
a picture.
Even if you are only using the Rackmount Extender for video extension (to drive
video to a remote monitor), serial extension (to drive RS-232 to or from a remote
touchscreen or other device), or audio extension (to drive audio to or from
remote devices), the Local Hub must still get power from(a) the keyboard port of
an attached PC or KVM switch or (b) its optional external power supply.
I get a constant vertical wobble down the screen. What is the cause of this interference?
1. The interconnection cable could be located too close to a source of very
strong electrical-power interference; reroute the cable if possible.
2. If the wobble forms a standing “beat pattern,” the Rackmount Extender is
probably being affected by a very strong signal from a nearby broadcast
transmitter. Try changing the vertical refresh rate slightly (for example, from
60 Hz to 70 Hz or vice versa).
3. You might require an alternative power supply for the affected Remote. Call
Black Box Technical Support.