Black Box ACU3009A Specifications download pdf (Page 53)

SERVSWITCH™ BRAND CAT5 KVM MICRO EXTENDER

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 cable between the Micro Extender’s Local and

Remote Units. Is it solid-core cable, rated as Category 5 (Category 5e might

provide acceptable performance)? Is it intact along its length and securely

connected at both ends? And is it 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 cables, patch-panel video connections, and other

video connections in the system. Make sure everything is properly and

securely attached.

3. DIP-switch position 1 on the Remote Unit might not be set for the correct

distance. See Section 5.1.

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 Micro 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 Extender’s Local Unit must still be attached to the PC’s

keyboard port, because that’s where it gets its power. If your application makes it

impossible to connect the Extender to a keyboard port, call Black Box Technical

Support about getting an alternative power supply for the Local Unit.

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 Micro 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 Remote Unit. Call

Black Box Technical Support.

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Black Box ACU3009A Specifications Page 53