| 摘要 |
The invention enables the use of the asynchronous Ethernet MAN (C) as if it was a regular fiber optic line, while eliminating the uncertainties of it's cloud environment. The invention provides a new method for synchronizing transmissions of real time synchronous data packets over an asynchronous network between two terminal nodes (A1) and (A2). The synchronization procedure is implemented within intermediating communication devices, which connect between the terminal nodes TDM equipment and the asynchronous network (C). Each communication device comprises local clocks, which are activated by a Stratum 2/3/3e/4/4e pulse generator. The local clocks synchronization is based on the transmission of the timestamp packets through an asynchronous network. Based on the references, an internal digital PLL enable, attenuating the jitter/wander in data transmission signal in accordance to Stratum 2/3/3e/4/4e accuracy standards. The DPLL data result is then processed to be used by the local clock of the receiving terminal. |
