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Kramer Does DVI Over Twisted Pair

Kramer Electronics this week announced its new PT-571HDCP and PT-572HDCP twisted-pair transmitter and receiver for DVI signals.

The combo can transmit DVI signals directly over a twisted-pair cabling; shielded twisted-pair cables are recommended, according to the company.

Kramer Electronics

Kramer Electronics


Kramer officials said the PT-571HDCP and PT-572HDCP represent a compact and inexpensive solution for DVI signal transmission over long distances. The PT-571HDCP converts a DVI signal into a signal that can be run over shielded twisted-pair cables. The PT-572HDCP receiver then converts the signal back to a DVI signal. Both units support bandwidth of up to 1.65Gbps and are HDCP-compliant and HDTV-compatible.


Using the new transmitter/receiver pair, a DVI signal can be transmitted up to 295 feet at SXGA resolution and up to 98 feet at UXGA resolution when using Kramer's shielded BC-DGKat524 cable. Kramer's shielded BC-DGKat623 cable can extend the range for UXGA to 230 feet. The company says it will soon introduce what it calls the Kramer shielded BC-DGKat7a23 cable that will extend the range to 265 feet for UXGA signals.


The company did not offer performance characteristics for non-Kramer cables.



Kramer PT-572HDCP

The PT-571HDCP and PT-572HDCP use a multicolored status LED that illuminates red when receiving power only, orange when an input or output signal and power are attached, and yellow when both an active input and output are attached.


The PT-571HDCP and PT-572HDCP pass the EDID and HPD signals from the source to the display device over the twisted pair cable together with the DVI signal.  The PT-571HDCP employs Kramer's Power Connect feature in which a single connection to the transmitter powers both units. The required 12V DC is transmitted through the twisted pair cable, along with the other signals, to the receiver.


The PT-571HDCP and PT-572HDCP are housed in the ultra-compact Pico Tools enclosure. They carry a list price of $220 per unit and are available now.


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