| 摘要 |
<p>A network healing smart fiber optic switch for fast, automatic switching between multiple paths of an optical transmission line with minimal disruption. The network healing smart fiber optic switch feeds multiple fiber optic inputs to a splitter (402). One of the outputs of the splitter goes to an optical switch (406), which selects the signal to send to the output based on a control signal from an analog selection circuit. Other outputs of the splitter go to the analog selection circuit (412, 414, 422, 424, 426), which outputs a control signal to the optical switch. The analog selection circuit compares the primary optical signal to a selected setpoint (416) to determine the signal's validity. The analog selection circuit routes a secondary, optical signal upon failure of the primary optical signal. After the primary signal is restored and valid for a specified period, the analog selection circuit deselects the secondary optical signal and routes the primary optical signal.</p> |
