NTP/PTP network time service hot backup circuit

• Main Authors: JIAN HEBING, YANG CAIFANG, LI WENLONG, DENG YIFENG, ZENG YINGCHUN, WEN XUEBIN, ZHU MIN
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION

The utility model discloses an NTP/PTP network time service hot backup circuit, belongs to the technical field of time unification, and solves the problem that domestic chip manufacturers cannot realize 100M/1000M network port combination and shunt chips. The NTP/PTP network time service hot backup circuit comprises a first FPGA (Field Programmable Gate Array) chip, a second FPGA chip, a first PHY (Physical Layer) chip, a second PHY chip, a link switching hot backup unit, a voltage type transformer and an RJ45 (Registered Jack 45) network port, the first PHY chip is respectively connected with the first FPGA chip and the link switching hot backup unit, the second PHY chip is respectively connected with the second FPGA chip and the link switching hot backup unit, a signal output end of the link switching hot backup unit is connected with a signal input end of the voltage type transformer, and a signal output end of the voltage type transformer is connected with a signal input end of the RJ45 network port. Acco