What About the Heat?
When transmitting power through copper conductors, there will be resistance, and this will generate heat. As more power is transmitted, more heat is generated. You can imagine that transmitting 100W will generate significantly more heat than when transmitting 15W or 30W. Heat is no friend to IP traffic on copper cabling. It weakens signal strength (attenuation) and makes IP traffic more prone to errors. More errors can cause your network to slow to a crawl and/or can possibly lead to rebooting. Berk-Tek understands the technical challenges involved with PoE and we have solutions specifically designed to solve these challenges.
Additional Temperature Budget
- Our LANmark-XTP (Cat. 6A) ahd LANmark-2000 (Cat. 6)product have been listed to 90˚C (194˚F).
- Our LANmark-1000 (Cat 6) product has been listed to 75˚C (167˚F). The standards require a 60˚C (140˚F) listing. In 2009, the TIA issued TSB-184 and in it, they recommend a maximum allowable temperature rise of 15˚C (59˚F). This limitation was arrived at assuming that the operating environment would have a maximum ambient temperature of 45˚C (113˚F). Adding the 15˚C would take the cable to its maximum listed operating temperature of 60˚C. By providing cables listed to 90˚C and 75˚C, we are providing you with an additional temperature budget of 30˚C and 15˚C. This temperature budget can be spent in operating environments where temperatures can climb above 45˚C and allow more heat generation through PoE.
Best Cable for High Power PoE
LANmark-XTP, our Category 6A product, is our absolute best performing solution for High Power PoE. Its discontinuous shield has been specially designed to provide not only outstanding electrical performance without grounding, but also outstanding PoE performance. In a bundle of 240 cables (10 fully populated 24-port patch panels), with 100W (802.3bt) of power energizing every pair in the bundle, LANmark-XTP had a temperature rise of only 19˚C (66˚F) in the center most cable. In comparison, Category 5e products had a temperature rise of 37˚C (99˚F).
Real World Testing
There are no electronics available yet that allow us to test 100W with simultaneous voice and data transmission. Therefore, how can you measure the effects of heat from high power PoE on your applications? The engineers at Berk-Tek created a 100-meter, four-connector test where we simultaneously transmitted voice, data, video and PoE power, while heating the cable to its 90˚C or 75˚C limit. We then tested voice, data, and video applications to find how Berk-Tek’s solutions would stand-up against the competition. As a leader in the industry, Berk-Tek saw this coming years ago. We invested in proprietary materials and in our proprietary Tek-Twist technology which protect your IP traffic from the effects of heat and noise. If you want solutions ready for more PoE, Berk-Tek has you covered, no sweat.