| 摘要 |
The advertising unit has a casing enclosing an internal space. A control unit partially mounted in the space includes communication ports, where one of the communication ports is connected to a source unit. A data exchanging unit includes internal and external communication ports. The internal communication port is connected to a data storage unit of the source unit either immediately via a data transferring channel or via one of the communication ports of the control unit. The external communication port includes a coupling unit, which is connected to a freely movable telecommunication tool. |
