data communciation equipment and procedures for data transmission with reduced risk of default

摘要

The invention relates to a data transmission device having a number of N uplink interfaces (E1, UP) that can be directed via a processing line (A, B) provided with a data processing component (T, LIC) to a starting element (F). The invention is characterized in that a first processing line (A) and a second processing line (B) are provided, each comprising two separate processing rows (A1, A2, B1, B2) for N/2 data lines each. A first half (1 to 8) of the N uplink interfaces (E1, UP) is connected to the first processing line (A) and the second half (9 to 16) of the N uplink interfaces (E1, UP) is connected to the second processing line (B). Every processing line (A, B) comprises a circuit arrangement (8A, 8B) that connects the N/2 data lines connected to the processing line (A or B) to the respective other processing line (B or A) to one of the processing rows (A1, A2, B1, B2) available there. The circuit arrangements (8A, 8B) are controlled in such a manner that one of the two processing lines (A or B) is active and the respective other processing line is switched to a standby mode so that the data traffic waiting at the N uplink interfaces (E1, UP) can be handled via one of the two processing lines (A or B).