Abstract: The invention relates to a monitoring device with cameras, monitors and a connection medium for said monitoring device. Provided in this connection are a response code memory for the storage of response codes by which image data can be retrieved by cameras, response code generation media which are allocated to the monitors and generate response codes which indicate which cameras should retrieve image data, whereby the connection medium is designed for the purpose of through connecting image data to the monitors in response to the response codes generated by the response code generation media allocated to said monitors.