Advanced physical layer (APL) adapter for legacy field devices
US12218775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2022 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Mar 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/40032
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An Advanced Physical Layer (APL) adapter for enabling functional interconnection of a 2-wire APL spur to at least one industrial process legacy field device includes a first pair of terminals, APL physical layer (PHY) circuitry, a second pair of terminals and connectivity circuitry. The first pair of terminals is configured for connection to the 2-wire APL spur. The APL PHY circuitry is capacitively coupled to the first pair of terminals. The connectivity circuitry is configured to communicate with a legacy field device connected to the second pair of terminals in accordance with a legacy communication protocol and control the APL PHY circuitry to communicate through the first pair of terminals in accordance with an Ethernet protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.