| 摘要 |
<p>In a digital transmission system including one or more matrix switches (MS0-MS6) in which data in digital form is stored in a send memory (10) during one selected time slot of a recurring time frame, transferred to a receive memory (11) during another time slot of the recurring time frame to establish desired data paths (0B0-0B7, 1B1-1B7) through the switch between selected inputs and outputs, means is provided in the form of a programmable read only memory (232, 233) to control the insertion loss of each data path (0B0-0B7, 1B1-1B7) in a selective manner. </p> |
