Page 24 - Security Today, November 2017

(as demonstrated by the TEK Center’s testing) with any of the following.
• When multiple cables are bundled and transmitting 1080 HD
or especially 4K UHD.
• The closer to the maximum length of 100 meters.
• Any electromagnetic noise sources close to the structured ca-
bling (fluorescent light ballasts, power cables).
• Operating environments where elevated temperatures occur.
When transmitting high definition, ultra-high definition or be- yond, alien crosstalk (cable-to-cable noise) starts to become a sig- nificant factor. The structured cabling system has to be designed to account for alien crosstalk, especially when cables are bundled, and unfortunately Category 6 products were not designed for this. Additionally, the structured cabling system will most likely also be carrying power (up to 100W) to energize the display monitor eliminating the need for a separate outlet. This will elevate the temperature (especially in a cable bundle), further stressing the network infrastructure.
Brian Simmons is the copper product manager for Berk-Tek.
1117 | NETWORKING SECURITY 10/3/17 12:41 PM
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