Sennheiser ADN D1 Instructions for Use - Page 63

Configuring the conference system via the central unit Display Direct Access 30 Units 20 The warning triangle N and the structural change icon K are displayed. Error and remedy N K Change in the number of conference units during the self-test: After switch-on, an automatic self-test is performed which simulates a running conference with all the conference units connected. If a failure of conference units occurs, the above mentioned error icons appear. A failure of conference units can be caused by undervoltages or overcurrents: ̈ Follow the steps described in the "System Load" menu item (see page 64). ̈ Perform a manual self-test (see page 67). Display Error and remedy Direct Access - - Units The warning triangle N and the short-circuit icon M are 20 displayed. The "Units" display displays no conference units ("--"). The PORT NM status LED of the affected ADN PS power supply flashes orange. The corresponding connection socket PORT on the ADN CU1 central unit or on the ADN PS power supply is deactivated. Short-circuit caused by: • metal parts (e.g. paper clips) that bridge the contacts of the plug connections • faulty system cables • wrong cables (e.g. crossover cables) ̈ Check if you are using the correct system cables. ̈ Follow the steps described under the "System Load" menu item (see page 64). ̈ Perform a manual self-test (see page 67). The "Units" display displays the connected conference units (e.g. "08"), the previously deactivated connection socket PORT is activated again. 62 | ADN Digital Conference System