Emergency converter device for providing a supply current to a lighting device , the emergency converter device comprising at least one printed circuit board arranged within a housing , a control circuit and a non-volatile memory for storing data which are arranged on the at least one printed circuit board , an interface comprising at least a first connecting element and a second connecting element, wherein the interface comprises a status indicator light interface configured for connection to a status indicator light , and a test switch interface configured for connection to a test switch , or the interface comprises a duration link select interface configured for connection to a duration link selector , and a test switch interface configured for connection to a test switch , and the emergency converter device is characterized in that the emergency converter device comprises connecting means for connecting a data output terminal (USART_TX) and a data input terminal (USART_RX) of the control circuit to the exterior of the housing , wherein the connecting means is configured to connect the first connecting element with the data output terminal (USART_TX) and to connect the second connecting element with the data input terminal (USART_RX) of the control circuit , and that , when the interface comprises the status indicator light interface and the test switch interface , the first connecting element is a terminal (9.2) of the status indicator light interface and the second connecting element is a terminal of the test switch interface , and that , when the interface comprises the duration link select interface and the test switch interface , the first connecting element is a terminal of the duration link select interface and the second connecting element is another terminal of the duration link select interface . at least one printed circuit board arranged within a housing , a control circuit and a non-volatile memory for storing data which are arranged on the at least one printed circuit board , an interface comprising at least a first connecting element and a second connecting element, wherein the interface comprises a status indicator light interface configured for connection to a status indicator light , and a test switch interface configured for connection to a test switch , or the interface comprises a duration link select interface configured for connection to a duration link selector , and a test switch interface configured for connection to a test switch , and the emergency converter device is that the emergency converter device comprises connecting means for connecting a data output terminal (USART_TX) and a data input terminal (USART_RX) of the control circuit to the exterior of the housing , wherein the connecting means is configured to connect the first connecting element with the data output terminal (USART_TX) and to connect the second connecting element with the data input terminal (USART_RX) of the control circuit , and that , when the interface comprises the status indicator light interface and the test switch interface , the first connecting element is a terminal (9.2) of the status indicator light interface and the second connecting element is a terminal of the test switch interface , and that , when the interface comprises the duration link select interface and the test switch interface , the first connecting element is a terminal of the duration link select interface and the second connecting element is another terminal of the duration link select interface . <EOS>