ODU MAC

Technical ArticleIn practice, it happens that a special test machine is used, for example, through which the printed circuitboards run on a conveyor.Figure 7Testing of printed cicuit boards for ICCT and function testThe printed circuit boards are thereby pressed against the needle bed from above during a short conveyorstop and the signals run over the interface connector to the computer. If the production program is changedevery week, for example, then the interface connector is worked at least once every week.The demands on the ODU-MAC´s insertion/withdrawal cycles are not very great here, because the insertion/withdrawalcycles accumulate on the spring-loaded pins on the needle bed. On the other hand,the ODU-MAC, under certain circumstances, must have a very high number of poles (certainly severalhundred).As the interface connector for such applications, the ODU-MAC, developed by ODU, has gained acceptanceall around the world.ODU-MAC – the modularly attachableconnector system which can be strungtogether.Figure 8Example: Testing mobile telephonesIn principle, everything is the same as for the testing of auto radios, which was outlined above. The differencesare: the connection of the mobile telephones doesn´t take place over adaptor cables but insteadover their outer connectors in connection beds and 4 telephones are always tested simultaneously.Docking station for testing 4 mobile telephones(demo model). The 4 coaxial contacts for50 Ω (4 GHz), the 4 x 10 signal contacts andthe 4 x 2 power contacts can be seen.Abbildung 9Page 68ODU Steckverbindungssysteme GmbH & Co. KG, Pregelstr. 11, D-84453 Mühldorf/Inn, Tel. +49/86 31/61 56-0, Fax +49/86 31/61 56 49, www.odu.de