Black Box ACU3001A, ACU3009A, ACU3022A manual Servswitch Brand CAT5 KVM Micro Extender

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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