Could Your Cabling Be Too Hot? With the emergence of VoIP phones and other PoE devices, network cabling is being used in ways not originally intended. Even certified Cat 5e cabling networks can have intermittent network problems because of increased temperatures caused by PoE. Large cable bundles in ceilings are now carrying additional power which can cause cables to rise over 15 degrees above typical operating temperatures. Network stability is compromised when the cabling e