| 摘要 |
Abstract The system includes an active unit, such as a detector unit (4), which has a processor (13), a network port (7) for connection to a central control unit (2), and an optical data 5 input port. The processor (13) is arranged to enable the optical data input port on receipt of an enable signal received by the active unit from the central control unit (2) via a network (e.g., 3). Figure 2 |
