Invention Grant
- Patent Title: Systems and methods for incorporating a single-port ethernet device in a media protocol ring
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Application No.: US16521773Application Date: 2019-07-25
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Publication No.: US11277279B2Publication Date: 2022-03-15
- Inventor: David E. Hoglund , Robert C. Hall , Timothy C. Gamroth
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Foley & Lardner LLP
- Main IPC: G06F15/173
- IPC: G06F15/173 ; H04L12/437 ; H04L43/065 ; H04L12/10 ; H04L41/0677 ; H04L12/28 ; H04L41/0213 ; H04L41/044 ; H04L12/42

Abstract:
A system and method of identifying faulted devices in an Ethernet network of a building management system (BMS). The system includes a network manager device, a first client device, and a second client device. A first port of the first client device is connected to a first port of the network manager device, a first port of the second client device is connected to a second port of the first client device and a second port of the second client device is connected to a second port of the network manager device. A third port of the first client device is connected to a port of a device external to a ring of the network. The network manager device is configured to transmit a frame having a count field.
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