The maintenance cable NEFF is a connecting adapter, which is used mainly during commissioning or maintenance and allows configuration, parameterisation and diagnostics of a positioner. During the manufacture, the electronics are encapsulated in a translucent adhesive. Thus the maintenance cable is protected against environmental influences, yet it still has a high-quality appearance. An LED display provides information on the operating status. The conspicuous light patterns can be easily identified, even from a greater distance.