| 摘要 |
A switching unit for a telecommunication network, such as an SDH telecommunications network comprises a command controlled switching matrix (3) having at least two switching degrees of freedom and a control logic (5) for generating a first type of control commands (CMPS-s, CMSP-B) which, for a group of connections, define the switching thereof in the first degree of freedom, and at least a second type of control commands (Cvcs), which specify for a given connection the switching thereof in all degrees of freedom. Between the control logic (5) and the switching matrix (3), a conversion circuit (15) there is provided for combining control commands of the first type with control commands of the second type into a control command of the second type. |
