Technology Showcase: HDMI Distribution
Jun 4, 2009 12:00 PM, By Bennett Liles
With broad support in consumer electronics, HDMI is moving on up.
The DVI-488-MX-HD1 8x8 HDMI matrix routing switcher from DVIGear allows any of eight HDMI 1.3, DVI 1.0-compliant inputs to be switched to any combination of outputs with no switching latency or frame delay. The reclocked and jitter-free signals can travel cable lengths up to 197ft. HD audio transmission and sample-rate conversion allow Dolby TrueHD and DTS-HD to be used along with legacy audio formats. There are additional SPDIF digital audio connectors for all HDMI outputs, and the unit can be controlled through RS-232/422, TCP/IP, and web browser. The DVI-488-MX-HD1 supports PC resolutions up to 1920x1200 or 2048x1080 and HDTV resolutions up to 1080p/12-bit on gold-plated connectors, and it includes four-level status indicators for all inputs. A wide range of display compatibility is ensured through advanced EDID management with 100 memories.
Freeport offers the HF-18 series 1x8 HDMI splitter with plug-and-play operation for sending 1.65Gbps HDMI 1.3, HDCP-compatible video signals at up to 1080p resolution from one source to as many as eight displays. Multiple units can be joined together for more outputs, and the inputs can be multiplied by using the unit in conjunction with Freeport’s HDMI switcher. The unit supports VGA, SVGA, and SXGA (1280x1024) PC resolutions. All connections are HDMI Type A. The HF-18 series models come with a 6VDC, 3-amp power adapter.
One of the few companies into wireless HDMI distribution, Gefen recently introduced the GefenTV Wireless for HDMI Extender (GTV-WHDMI) for delivery of 1080p30 or 1080i60 video, 5.1 digital audio, and analog stereo sound to up to five locations in broadcast mode at distances up to 100ft. over 5GHz radio waves with a clear line of sight. HDCP-encrypted signals may only be used with one sender and one receiver operating in unicast mode. The video signals are fully HDMI 1.2-compliant, and PCM audio is supported when using HDMI at 32kHz, 44.1kHz, and 48kHz. The package includes one sender; one receiver; two universal 5VDC, 2.6-amp power supplies; one 6ft. HDMI cable; and a user manual.
The SP-HDMI-4A from Hall Research Technologies is a video splitter that distributes one HDMI input on a Type A connector to four HDMI outputs and supports PC resolutions from 480p to 1080p at 1.65Gbps. Using output 4, the SP-HDMI-4A can be cascaded up to three levels for more outputs, and each of the buffered outputs can run up to 40ft. at 1080p. The plug-and-play unit is HDMI 1.1-, HDCP 1.1-, and DVI 1.0-compliant, and it includes an LED power indicator on the front panel. The package includes the splitter, one universal switching power supply, and a user manual.
The Intelix HDMI-2X8 distribution amplifier has one HDMI input and one DVI input with optional digital SPDIF or optical audio. The front panel has a switch to select between the two video sources. The HDCP-compliant signal is routed to all eight outputs through HDMI Type A connectors, and multiple units may be linked at a distance of up to 30ft. The unit supports video resolutions up to 1080p, and it accommodates an input DDC signal of 5V peak-to-peak. The 2RU metal chassis is rackmountable, and the unit comes with a 12VDC power supply and rackmounting ears. The shipping weight is 9lbs., and power consumption is 15W.
The GVS184 4-Port HDMI splitter from IOGear distributes a single HDMI 1.3b, HDCP-compliant input signal to four outputs with a maximum data rate of 2.25Gbps in video resolutions from 480i to 1080p. The unit can automatically downscale video to fit supported resolutions for any display that supports automatic video-resolution scaling. The plug-and-play unit also features a front-panel reset button along with power and active-port LEDs. The package includes a power adapter, a quick-start guide, and a warranty card.
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