VERFAHREN ZUM MESSEN IM TEILNEHMERBEREICH EINES INTEGRATED SERVICES DIGITAL NETWORK (ISDN)-SYSTEMS

摘要

Interface-specific procedures in the form of alternate sending and receiving of data are carried out between the network termination which constitutes the limit of the user domain and the user terminals. The order of the data sequences and the duration of transmission of each data sequence are predetermined, which impedes measurements in the user domain. This difficulty is overcome by using a test pattern generator which can organize all data sequences required for the operations in an order and for a duration which facilitate measurement. The generator can also produce freely definable data sequences for the measurements. In addition, the generator is capable of producing control and/or identification data in synchronization with the data sequences. Application: measurements in the user domain of an ISDN system.