Extending Your Distance - Black Box AC056A-R2 User Manual

VGA VIDEO SPLITTERS

3.3 Extending Your Distance

The maximum distance to which a VGA Video Splitter can drive signals to a
VGA monitor depends primarily on the quality of the cable being used and
the pixel resolution and refresh rate of the VGA image coming from the
computer. Never use twisted-pair cable as video-extension cable, because this
will cause "ghosting" of the on-screen images. Table 3-1 below is a guide for
maximum distance at various resolutions with high-quality VGA extension
cable.
To run the cable the full distance, you must not route it near motors,
generators, air compressors, or other sources of electromagnetic noise.
If you would like to order VGA extension cable, call your supplier for
technical support.
10
Table 3-1. Maximum Distances
Pixel Resolution and
Refresh Rate
640 x 480 at 60 Hz
640 x 480 at 75 Hz
800 x 600 at 60 Hz
800 x 600 at 75 Hz
1024 x 768 at 60 Hz
1024 x 768 at 75 Hz
1280 x 1024 at 75 Hz
Maximum Cable Length in
Feet (Meters)
250 (76.2)
175 (53.3)
200 (61)
150 (45.7)
175 (53.3)
125 (38.1)
100 (30.5)