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HDBaseT can send massive amounts of audio, video and data hundreds of feet over cheap, simple Cat 5 Ethernet cables. The HDBaseT Alliance recently demoed some of the technologies used.
Pioneer's upcoming Elite receiver utilizes HDBaseT to send AV signals to a second zone.
The HDBaseT logo is assurance that the device has been certified by the HDBaseT Alliance.
Among all those connections...
...is the familiar port for a Cat 5 cable, primed to run to another zone up to 328 feet away with one cable length.
Also on display was a modified TV running from a single cable. Audio, video and even power were supplied via that cheap Cat 5 cable. The upper limit of 100 watts of power means that only smaller LCD TVs will be "single-wire," however.
I also saw a demo of a home-networking solution run by a single HDBaseT hub.
The hub was supplying four different TVs with four different sources, including a PC that was controlled remotely by a USB keyboard/mouse plugged into a far-flung TV.
An iPad app can control which sources are sent where.
This modified HD security camera is one source that could benefit from HDBaseT's combination of signal and power capabilities.
The back of the switcher box shows the numerous kinds of signals one cable can carry.