Patent ID: 9128841
Filing Date: 2015-09-08
Classification: G06F

Abstract:
1. A system for remote shutdown of a slave unit, the system comprising: a master unit comprising a first computing device, a second computing device, a first vital supervision card (VSC), a second VSC, a first copper to fiber (C/F) converter, and a second C/F converter, wherein the first computing device is configured to send a first life signal to the first VSC and the first C/F converter, and the second computing device is configured to send a second life signal to the second VSC and the second C/F converter; a slave unit comprising a third VSC, a fourth VSC, a first fiber to copper (F/C) converter, and a second F/C converter, wherein the first F/C converter is configured to forward the first life signal to the third VSC, and the second F/C converter is configured to forward the second life signal to the fourth VSC; and at least one fiber coupled between the master unit and the slave unit, configured to forward the first life signal from the first C/F converter to the first F/C converter and the second life signal from the second C/F converter to the second F/C converter, wherein: the first C/F converter is configured to be powered down in response to the second VSC failing to verify the second life signal; the second C/F converter is configured to be powered down in response to the first VSC failing to verify the first life signal; the first F/C converter is configured to be powered down in response to the fourth VSC failing to verify the second life signal; and the second F/C converter is configured to be powered down in response to the third VSC failing to verify the first life signal.