扩大KVM视频范围扩大到 1.5k Ft Application Note 1484
By Rudy Berneike and David Laing
Extending the KVM Video Range to 1.5k Ft
The present KVM extension solution, Intersil’s ‘Hermes’
board, support RGB video transmission down Cat 5 cable
to about 1,000ft. Yet, you can extend this solution to
1,500ft by simply adding a pre-compensation network
cable driver. This pre-comp driver is inserted between the
EL4543 line driver RJ45 output plug and the Cat 5 cable
to extend the range by 500ft (refer to Figure 3). We will
also offer an option which you can connect directly to the
computer’s VGA video output plug to extend the range of
the PC’s RGB output on Cat 5 cable.
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