Black Box AC1060A-R2, Manual, Page: 20 / 28

CAT5 MULTI VGA SYSTEM
Appendix B. DC Restoration of AC
coupled source
The Cat5 Multi VGA system is designed to function with DC coupled signals
with the black level referenced to 0 volts. Nearly all VGA cards function this
way. However, some media servers or digital camera devices provide AC
coupled signals and can cause a green color shift in the video. This is a result
of the sync clamping on the Red and Blue channels. The single port
transmitter has been designed with full DC restore capability. A simple switch
setting is all that is required.
The following diagrams show the switch location and settings for the
AC1060A transmitter assembly.
Note: Switch settings other than shown below may result in unpredictable
performance and are not supported by Black Box.
DC restore option (AC1060A-R2 only):
Mode 1 Enable: Switch position B, C ON (UP)
Mode 2 Enable: Switch position A, C ON (UP)
Disable: Switch position B, C OFF (default)
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