Automatic Selection Device for Redundant Power and Data Switching
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Solution Overview
Problem
Wired data telecommunications networks lack redundancy in power and data delivery, leading to connectivity issues and device failure when equipment fails, especially in critical applications like VOIP and internet connectivity.
Innovation Solution
An automatic selection device provides redundant signaling and power delivery between two power sourcing equipment devices, allowing for seamless switching between redundant ports and communication with a network management system in case of failure, ensuring continuous data and power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant power and data sources are implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The system pre-configures redundant power and data sources before failures occur. The automatic selection device is pre-programmed with failure detection protocols and redundant path routing, enabling immediate switchover without manual intervention or complex real-time decision-making during outages.
Solution Approach 2:
An automatic selection device acts as an intermediary between multiple power sourcing equipment devices and powered devices. This mediator handles the complexity of monitoring, selection, and switching automatically, shielding end users from the underlying system complexity while ensuring high availability.
2Loss of time
If automatic switching between redundant sources is implemented, then loss of time is reduced, but device complexity increases
Solution Approach 1:
The automatic selection device performs self-service by autonomously monitoring the operational status of power sourcing equipment, detecting failures, and initiating switchover to redundant sources without external intervention. This self-service capability minimizes downtime while encapsulating the complexity within a dedicated management function.
Solution Approach 2:
The system implements continuous feedback loops where the automatic selection device monitors power and data transmission quality in real-time. Upon detecting degradation or failure conditions, the feedback mechanism triggers automatic switchover to redundant sources, ensuring minimal disruption while maintaining closed-loop control.
3Reliability
If redundant power sourcing equipment is added, then reliability is improved, but use of energy increases
Solution Approach 1:
The system applies local quality by providing redundant power and data capabilities only where and when needed. The automatic selection device enables selective activation of redundant sources based on actual operational requirements, allowing powered devices to receive power from primary sources during normal operation and switch to redundant sources only upon failure detection.
Data Source
AI summary
Redundancy of data and/or Inline Power in a wired data telecommunications network from a pair of power sourcing equipment (PSE) devices via an automatic selection device is provided by providing redundant signaling to/from each of the pair of PSE devices, and coupling a port of one PSE device and a redundant port of the second PSE device to respective first and second interfaces of a port of the selection device. The selection device initially selects one of the two PSE devices and communicates data and/or Inline Power to a third interface of the selection device. A powered device (PD) coupled to that third interface communicates data and/or Inline Power with the selected one of the first and second PSE device through the selection device. Upon detection of a condition, such as a failure condition, the selection device may select the other of the two interfaces.