| 摘要 |
A laser and single-mode optical fibre telesignalization signal acquisition device, including a laser sending circuit (1), a single-mode optical fibre (8), an optical signal switch (4) and a laser signal receiving circuit (2). The laser sending circuit (1) is connected to one end of the single-mode optical fibre (8), and a pigtail adaptor (9) at the other end of the single-mode optical fibre (8) is correspondingly installed on an optical through-via at one side of the optical signal switch (4). The laser signal receiving circuit (2) is connected to one end of a single-mode optical fibre (10), and a pigtail adaptor (11) at the other end of the single-mode optical fibre (10) is correspondingly installed on an optical through-via at the other side of the optical signal switch (4). The device feeds back the operating status of the monitored apparatus using the ON/OFF of the optical signal circuit and transmits the telesignalization information to the monitoring apparatus, with a simple structure, reliable performance, low power consumption, and resistance to electromagnetic interference.
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