Specifications

SERVSWITCH

™

BRAND CAT5 KVM EXTENDER

I only need video—not keyboard or mouse control—but I can’t get a picture.

Even if you are only using the Extender for video extension—to drive video to a

remote monitor—the Extender’s Local Unit must still be attached to the keyboard

port of a PC or KVM switch, 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 Extender is probably being

affected by a very strong signal from a nearby broadcast transmitter. The

solution in this case is to change 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.

I get black & white instead of color video.

Your CPU probably needs to see monitor ID in order to boot into the correct video

mode. Please contact Black Box Technical Support.

Microsoft Windows 3.x, 95, 98, or 2000, Windows Me, Windows NT, or Windows XP will

only boot into a low-resolution graphics mode.

1. If your graphics card supports VESA DDC (Display Data Channel), configure

the graphics driver by explicitly telling it which make and model of monitor

you’re using, rather than letting the driver configure itself automatically (and

probably erroneously) through DDC, which the Extender doesn’t support at

the remote station.

2. Your CPU might need to see monitor ID in order to boot into the correct

video mode. Please contact Black Box Technical Support.

Connecting a keyboard to the Remote Unit has an adverse effect on the remote video.

Try using a newer keyboard. (Some older keyboards require too high a current

for the Remote Unit to properly drive the video signal.)

The Extender doesn’t seem to work correctly with my LCD panel.

Try reducing the refresh rate of the video signal that your graphics card is

outputting. (The maximum refresh rates supported by most LCD panels

are less than those supported by most monitors.)