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Application #4
a distribution system feeding the highest number of displays possible is shown below. the total number of video displays is
108. The distribution amplifiers add up to 17 HDCP Rx nodes, and the source is one node, so the total number of downstream
nodes in this system is 127. audio authority can help you design a distribution system that suits your needs and is easy to
install and operate.
1 : 4
4 : 1
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 8
1 : 4
1 : 4
1 : 4
1 : 4
Source 1
Source 4
1 : 2
Source 2
Source 3
56 TVs
52 TVs
System Architecture Notes
1. HDcP protected signals are limited to 127 downstream nodes. a “node” is any device that has an HDcP rx chip.
2. Switchers, distribution amplifiers, repeaters and TVs contain an HDCP Rx chip; however, the Model 1391A
extender/DDc corrector does not contain an HDcP rx chip.
3. When calculating a system’s TV capacity, subtract one from the number of TVs each distribution amp serves for
every output used to feed another amp.
4. The first switcher or amplifier in the signal path is not counted toward the 127 total downstream HDCP Rx nodes.
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