| 摘要 |
Transmission channels indicated as occupied in a communications system having peripheral modules are inspected for preparing subscriber-side transmission channels. A test sequence transmitter on the system side transmits a test sequence to a control unit for a selected peripheral module. The test sequence is transmitted to a test sequence receiver over a transmission channel, which is indicated as occupied and which is assigned to the peripheral module. The test sequence, which is transmitted by the test sequence transmitter, and the test sequence, which is received by the test sequence receiver, are inspected for an evaluation of conformity. In the instance of non-conformity, the selected transmission channel is disconnected in a targeted manner.
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