Apparatus for implementing the function of a virtual container-11 and a tributary unit group-2 in a synchronous digital hierarchy
US5790557A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 13, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Sep 13, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/0089
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus for implementing the integrated function of virtual container-11(VC-11) and tributary unit group-2(TUG-2) is configured to transmit and receive a DS-1 network signal and a TUG-2 system signal through a synchronization process in a synchronous multiplexing structure. Data between a network and a system is converted by using only one Tx buffer and one receiving buffer in a transmitter and a receiver respectively. An input of a Tx FIFO buffer is a DS-1 signal of 1.544 Mbps, and an output thereof is a TU-11 frame of 1.728 Mbps including spaces for a path overhead and a pointer. An input of a RX FIFO buffer is the TU-11 signal of 1.728 Mbps in which the path overhead and the pointer are eliminated, and an output thereof is the DS-1 signal of 1.544 Mbps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.