US 12,079,332 B2
Security device to protect active communication ports
Mark L. Zeller, Clarkston, WA (US)
Assigned to Schweitzer Engineering Laboratories, Inc., Pullman, WA (US)
Filed by Schweitzer Engineering Laboratories, Inc., Pullman, WA (US)
Filed on Oct. 15, 2021, as Appl. No. 17/502,334.
Prior Publication US 2023/0119025 A1, Apr. 20, 2023
Int. Cl. G06F 21/55 (2013.01); G06F 11/30 (2006.01); G06F 21/60 (2013.01); G06F 21/81 (2013.01)
CPC G06F 21/554 (2013.01) [G06F 11/3062 (2013.01); G06F 11/3089 (2013.01); G06F 21/606 (2013.01); G06F 21/81 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A system, comprising:
a first interface to connect to a first communication port of a first host device;
a second interface to connect to a second communication port of a second host device, wherein the first interface and the second interface comprise a plurality of channels to enable communication between the first host device and the second host device via the first communication port and the second communication port; and
control logic to:
monitor a power channel between the first host device and the second host device;
monitor a communication channel between the first host device and the second host device;
detect an interruption of at least one of the power channel or the communication channel; and
disable communication between the first host device and the second host device in response to the interruption.