NEW YORK — The Ethernet Alliance announced on Tuesday a new subcommittee to support Power over Ethernet (PoE). PoE, the delivery of power over Ethernet cables -- the same cables carrying data to a device -- has promise for less power-hungry remote devices, such as wall-mounted cameras and in automotive advanced driver assistance systems (ADAS).
The subcommittee will support the IEEE's "growing library of PoE standards and extend[ing] the range of applications and devices using" PoE, according to a press release. The subcommittee will also demonstrate the technology and promote market awareness of new and existing PoE capabilities.
"There are a number of projects that happened in the IEEE, a host of projects that need basic marketing and awareness as well as interoperability," said John D'Ambrosia, chairman of Ethernet Alliance in an interview with EE Times.
PoE will have a whole host of new applications, D'Ambrosia said. Four-pair PoE, delivering at least 49 watts, will enable uses not envisioned before because prior PoE generations did not have enough power to support it.
The use of parallelization, running multiple connectors together to create an aggregate link, has a long history in Ethernet. For example, some of today's 100 Gbit/second Ethernet systems use four 25G links.
With more power available, PoE will find uses in kiosks, nursing stations, and other business applications that have power constraints. Automotive Ethernet is one key driver.
"The automotive market could significantly profit more than most from deploying standard Ethernet coupled with PoE," said Mike Jones, in a blog on EE Times.
"We're working to support it," said D'Ambrosia about automotive and PoE.
D'Ambrosia mentioned two projects on Ethernet in vehicles. The reduced twisted pair gigabit Ethernet PHY taskforce is working on unshielded twisted pair that reduces conductors down to two from eight lowering weight. In addition, the Alliance is also pursuing a technology called Power over Data Line (PoDL), which is an interconnect for the power system in cars via Ethernet.
"The introduction of [Ethernet in] automotive is going to have a profound effect," he said, similar to the introduction of the iPhone and the iPad.
About 300 million Ethernet ports will be available in cars by the end of this decade. "It's really a game changer," he said. "It's a new source of data and applications that's going to penetrate throughout the ecosystem," he added
The Ethernet Alliance was founded about nine years ago, D'Ambrosia said, with a focus on supporting Ethernet technologies developed in the IEEE 802. The alliance supports ongoing IEEE 802.3 projects encompassing Power over Ethernet (PoE), 10, 40, and 100 Gbit/second standards as well as Ethernet Passive Optical Networking.
— Zewde Yeraswork, Associate Editor, EE Times