HDMI TECHNOLOGY
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SYSTEM FEATURES
The Old: Standard HDMI® devices transmit video and audio using a signaling method called TMDS
(Transition Minimized Differential Signaling). TMDS was designed for short cable runs, like those necessary
to connect a cable box to an HDTV in an entertainment center. Unfortunately, TMDS has some limitations.
Very high frequency signals like HDMI tend to “roll off” as cable runs get longer. Since differential pairs are
used for each of the three color channels and the separate clock channel, differences in individual wire
lengths inside HDMI cables can cause timing errors and blank screens.
The New: HD-IP technology utilizes Ethernet standards to overcome the inherent limitations of TMDS.
Enabling totally reliable cable runs up to 250 feet long, easy distribution of signals, and robust signal integ-
rity, transmitting HDMI signals over IP networks redefines the possibilities for HDMI video distribution.
Compliant with HDCP 2.0 specifications, this technology supports copy protection with 128-bit AES encryp-
tion and overcomes traditional key verification limitations, enabling very large system sizes while maintain-
ing full HDCP compliance. Audio Authority’s Gigabit infrastructure means that the picture quality is virtually
indistinguishable from the source, suitable for the most discerning viewer.
• Gigabit Ethernet (GbE, 1000BASE-T) technology for better picture quality
• Uses off-the-shelf GbE network switches for distribution
• Requires only one UTP cable per position (Cat 5e or Cat 6)
• Quick synchronization means maximum up-time
• Installation is plug and play – no complex setup routines or programming
• Designed to function on a separate, dedicated Ethernet network
• Cat 5e max. distance: 200+ ft. (60m), Cat 6 max. distance: 250+ ft. (75m)
• Cascading multiple network switches and cable runs allows maximum distribution distances of 1000+ ft.
(300m) when necessary
• HDMI version 1.3 and HDCP version 2.0 compliant
• Supports 720p and 1080p and embedded digital audio (2-channel PCM)
• IR can be transmitted over the UTP cable back to the source location
• Maximum number of sinks is 127 with HDCP protected content
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