US 12,250,022 B2
Optical port identification
Riccardo Ceccatelli, Genoa (IT); Stefano Orsi, Genoa (IT); Francesco Cisamolo, Genoa (IT); and Roberto Magri, Genoa (IT)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/924,401
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed May 11, 2020, PCT No. PCT/EP2020/063074
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/228364, PCT Pub. Date Nov. 18, 2021.
Prior Publication US 2023/0188210 A1, Jun. 15, 2023
Int. Cl. H04B 10/079 (2013.01); H04B 10/60 (2013.01); H04J 14/02 (2006.01); H04Q 11/00 (2006.01); H04B 10/40 (2013.01); H04B 10/50 (2013.01)
CPC H04B 10/07955 (2013.01) [H04J 14/0282 (2013.01); H04Q 11/0062 (2013.01); H04B 10/40 (2013.01); H04B 10/50 (2013.01); H04B 10/60 (2013.01); H04Q 2011/0083 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An indicator system for optical ports of a passive optical communications equipment, the indicator system comprising:
a plurality of photodetectors configured to detect an optical signal on the optical ports;
an optical filter configured to demultiplex wavelength division multiplexed (WDM) optical signals on an aggregate WDM port onto a plurality of separate optical lines for each wavelength, and connected to each of the optical ports, wherein the indicator system detects presence of the WDM optical signals separated by the demultiplexer onto separate optical ports;
a plurality of indicators configured to indicate on which optical ports an optical signal is detected by the photodetector; and
a power source configured to provide power to the photodetectors and indicators, wherein the power source is self-contained at the passive optical communications equipment, wherein the power source comprises a button on an exterior surface of the passive optical communications equipment, and wherein the button is configured to generate power when depressed.