| 摘要 |
<p>An accessory for terminal blocks (1) is anticipated, which provides their universal use, so that the same terminal block (1) with each time ten terminals (1) in the telephone exchange distribution frame can be used not only on the subscriber's side but also the side of the exchange. The terminal block (1) features on its upper part (12) a longitudinal groove (11), the discussed accessory consists of an input snap-on part (22), which is intended for fitting into the specified groove (11) on the subscriber's side of the telephone exchange distribution frame (1), as well as covering part (21), which is intended to close at least one, bur preferably at least two out of ten terminals (1) on the same terminal block (1). Thanks to the specified accessory (2) a universal use of the telephone exchange terminal block (1) is provided, and in this way a unification of dimensions of the supports or guides for fastening terminal blocks (1) in the telephone exchange distribution frame is achieved.</p> |
