US 12,452,567 B2
Combo optical network unit optical module circuit
Fusheng Xiong, Shenzhen (CN); Hailiang Jin, Shenzhen (CN); Sijun Wang, Shenzhen (CN); Xianghui Zhang, Shenzhen (CN); Lin Wu, Shenzhen (CN); and Jixun Ju, Shenzhen (CN)
Assigned to POTRON TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by POTRON TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed on May 2, 2023, as Appl. No. 18/310,553.
Claims priority of application No. 202211167367.3 (CN), filed on Sep. 23, 2022.
Prior Publication US 2024/0107208 A1, Mar. 28, 2024
Int. Cl. H04Q 11/00 (2006.01)
CPC H04Q 11/0067 (2013.01) [H04Q 11/0005 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A COMBO optical network unit (ONU) optical module circuit, comprising:
a microcontroller unit (MCU) control circuit;
a 10-gigabit symmetric passive optical network (XGSPON) ONU circuit; and
a gigabit passive optical network (GPON) ONU circuit; wherein,
the MCU control circuit comprises a first control unit, a second control unit, and a third control unit; wherein,
the first control unit is configured to determine a transmission channel according to a level of an input signal, wherein a high level indicates an XGSPON ONU input state, and a low level indicates a GPON ONU input state;
the second control unit is configured to switch between a TX_SD 10G signal and a TX_SD_1G signal, wherein the TX_SD_10G signal is configured to indicate to switch to the XGSPON ONU input state, and the TX_SD_1G signal is configured to indicate to switch to the GPON ONU input state;
the third control unit is configured to start an optical module, and is further configured to supply power to the GPONG ONU circuit, or supply power to the XGSPONG ONU circuit; and
the first control unit is further configured to control the XGSPON ONU circuit through a first serial clock port and a first serial data port in an inter integrated circuit communication mode, or control the GPON ONU circuit through a second serial clock port and a second serial data port in an I2C communication mode;
the XGSPON ONU circuit is configured to receive and emit a 10G optical signal according to the control of the first control unit; and
the GPON ONU circuit is configured to receive and emit a 2.5G optical signal according to the control of the first control unit.