SAN JOSE, Calif. – PLX Technology, Inc. demonstrated a 10 Gbit/second Ethernet link carrying both data and electrical power a distance of 300 meters over Category 6A unshielded twisted pair copper cable. The demo uses PLX's TN8022 transceiver and the company's repeaters for Power-over-Ethernet (PoE).
The transceiver dissipates about 16W at 300 meters. It draws less than 4W at 100 meters.
"Extending 10GBase-T links to cover room-to-room and floor-to-floor distances, and providing power over existing Ethernet cables, should help accelerate adoption of the technology by equipment makers and IT managers who were previously forced to use optical fiber for these applications," said Bob Wheeler, senior analyst at The Linley Group (Mountain View, Calif.).
"PLX has reduced power dissipation [for 10GBase-T] to the point where it is now capable of PoE repeater utilization," said Ron Cates, PLX's vice president of marketing for networking products.
PCI Express interface specialist PLX got into transceivers with its acquisition of startup Teranetics in September.