Network element and input/output device for a synchronous transmission system
AssigneeAlcatel
InventorsDavid Scheer, Jürgen Kasper, Werner Beisel, Wolfgang Krips
Life of this patent
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Abstract
The invention concerns a network element and an input-output unit (1) for a synchronous transmission system according to the standard for Synchronous Digital Hierarchy or according to the comparable Synchronous Optical Network (SONET) standard. The input-output unit (1) contains a signal processing device (2) that has a reception data memory (5), a transmission data memory (7), a control unit (6) and a processor (3). The processor (3) is a digital signal processor which essentially carries out the processing of a STM-N signal.
Claims21
Synchronous transmission system for digital signals combined to a multiplex signal, comprising network elements which are connected to each other via one or several transmission media, each network element further comprising an input/output device (1) for receiving and transmitting the multiplex signal, with the input/output device (1) further comprising an interface device (4) and a signal processing device (2) for processing data received from the interface device (4), characterized in that the signal processing device (2) comprises memory means (5, 6, 7) for storing the data and a programmable processor (3) for carrying out the processing according to a program, that the memory means (5, 6, 7) is responsive to data and write address signals for arranging the data in a predetermined pattern for access by the processor (3) for processing the data, that the memory means (5, 6, 7) is responsive to read address signals for conveying to the interface device (4) data received from the processor (3) and that the processing is changeable by changing the program.
Network element for a synchronous transmission system, with an input/output device (1) comprising an interface device (4) capable of transmitting a multiplex signal and processing a received multiplex signal, and a signal processing device (2) for processing data received from the interface device (4), characterized in that the signal processing device (2) comprises memory means (5, 6, 7) for storing the data and a processor (3) for carrying out the processing according to a program, that the memory means (5, 6, 7) is responsive to data and write address signals for arranging the data in a predetermined pattern for access by the processor (3) for processing the data, that the memory means (5, 6, 7) is responsive to read address signals for conveying to the interface device (4) data received from the processor (3) and that the processing is changeable by changing the program.
Input/output device (1) for a network element which forms a part of a synchronous transmission system, comprising an interface device (4) capable of transmitting a multiplex signal and processing a received multiplex signal, and a signal processing device (2) for processing data received from the interface device (4), characterized in that the signal processing device (2) includes memory means (5, 6, 7) for storing the data and a processor (3) for carrying out the processing according to a program, that the memory means (5, 6, 7) arrange the data in a predetermined pattern so that the processor (3) can access and process the data, that the memory means (5, 6, 7) can convey to the interface device (4) data received from the processor (3) and that the processing is changeable by changing the program.
Dependencies are inferred from the claim text.