| 摘要 |
<p>The invention relates to an apparatus (M) having a backplane (10) adapted for coaction with a number of circuit boards (31, 35) arranged in side-by-side relationship and including a number of mutually adjacent and mutually spaced elongated, narrow backplane-related connector fields (1-9), each of which is adapted for firm but easily removed mechanical and electrical coaction with a corresponding connector field (31a, 31b, 33a) related to an edge-part of respective circuit boards. A number of first selected backplane-related connector fields (1, 3, 5) are connected electrically to a first bus (A), and a number of second selected backplane related connector fields (2, 4, 6) are connected electrically to a second bus (B). The backplane-related connector fields (1-9) are divided into a predetermined number of groups (10a, 10b, 10c) where each group is allotted a part-section of the backplane and wherein the first connector fields (1, 3, 5) of respective groups are joined together and connect to a first bus (A). Each backplane-related group (10a, 10b, 10c) is allocated the same number of connector fields and each second connector field (2, 4, 6) of each group (10a, 10b, 10c) are mutually joined and connect to a second bus (B), and so on when required.</p> |
