Universal interface for a wireless adapter

A universal interface for a wireless adapter, which supports a communication protocol used in automation technology, wherein associated with the wireless adapter are a first energy supply unit for energy supply of the wireless adapter and a radio module for communication with a superordinated control unit via a radio network, said universal interface has:

• at least five connection terminals, which are so embodied that, as a function of a field installation to be connected, a portion of said connection terminals are connectable either with different embodiments of field devices, or with a servicing device, or to use the wireless adapter in modem operation, and
• whereas depending on said field installation the occupation of said connection terminals is changed and the individual connection terminals are usable in different combinations;
• wherein a third connection terminal of said at least five connection terminals is, depending an said field installation that is to be connected, a ground terminal for an external energy supply unit or a bridge for connection to a fifth connection terminal of said at least five connection terminals and
• wherein for the case in which the wireless adapter works with a field device that is fed via the external energy supply unit in modern operation, the external energy supply unit is connected with said third connection terminal of said at least five connection terminals and said fourth connection terminal of said at least five connection terminals;
• said third connection terminal of said at least five connection terminals and said fifth connection terminal of said at least five connection terminals are connected with one another via a bridge;
• and
• the field device is connected to the wireless adapter via said fourth connection terminal of said at least five connection terminals and said fifth connection terminal of said at least five connection terminals.