With a work device that holds to a surface by vacuum pressure and can move on the surface to perform jobs and is connected to a base station through a supply line, there exists a danger that the work device will fall if the attractive force weakens. A mobile device to provision secure data OTA in a non-UICC type SE including an OTA proxy to connect to a Trusted Service Manager system, and to receive provisioning data from the TSM system; a near-field-communication enabled chip to conduct a contactless transaction; and a SE to store information provisioned through OTA proxy, in which the SE is a non-UICC type SE. The DOCSIS MAC sends DOCSIS management packets portion of the decoded data to the host processor and sends transmit packet data portion of the decoded data to the data network.