Intercom transceiver with fiber optic link
US9143233B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Jun 10, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/0001
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method for carrying a downstream optical signal and an upstream optical signal on a fiber optic link is disclosed. The system and method includes a first transceiver unit that receives an input communication signal from at least one external communication device at an electrical input port, a transmitter that converts the input communication signal into an optical signal and transmits the optical signal as an downstream optical signal on a fiber optic link, a receiver at the second transceiver unit that receives the downstream optical signal and converts the downstream optical signal into an electrical communication signal, and a first circuit in the second transceiver unit that determines whether the second transceiver couples the electrical communication signal to a two wire intercom circuit or a four wire intercom circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.