Pluggable Module for PPS Signal Testing in Network Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Network elements often lack accessible connectors for testing Pulse-Per-Second (PPS) signals, as panel space is limited, making it difficult to connect PPS signals to test equipment without using additional connectors.
Innovation Solution
A pluggable module that fits into existing network element cages, sending a plugged-in indication to route PPS-IN and PPS-OUT signals between the network element and test equipment, utilizing existing connectors to avoid occupying precious panel space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional connectors are added to the panel for testing PPS signals, then the accessibility of PPS signal testing is improved, but the panel space consumption increases
Solution Approach 1:
The pluggable module enables existing network connectors to serve dual purposes: normal network communication and PPS signal testing. By plugging the module into standard network ports, the same physical connector provides both data transmission and time synchronization signal access, eliminating the need for separate dedicated test connectors.
Solution Approach 2:
The pluggable module acts as an intermediary device that bridges between the network element's internal PPS signals and external test equipment. It contains detection circuitry that identifies when the module is installed and routes PPS signals through the existing connector infrastructure to the attached test device, enabling indirect access without modifying the original connector design.
2Measurement precision
If the network element is designed with dedicated PPS test connectors, then the measurement precision of PPS signals is improved, but the device complexity increases
Solution Approach 1:
The testing functionality is extracted from the network element's fixed architecture and implemented as a separate pluggable module. This allows the PPS signal routing and test capabilities to be independently designed and installed only when needed, rather than being permanently integrated into the network element's connector system.
Solution Approach 2:
The system transitions from a static connector configuration to a dynamic, reconfigurable setup. The pluggable module can be inserted or removed based on testing requirements, and the detection circuitry dynamically activates PPS signal routing only when the module is present, allowing the system to adapt its functionality rather than requiring permanent dedicated connections.
3Area of stationary object
If existing connectors are reused for PPS signal routing, then the panel space is conserved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The pluggable module includes detection circuitry that provides feedback to the network element about its presence. This feedback mechanism allows the network element to automatically detect when the module is installed and accordingly activate or deactivate PPS signal routing through the existing connectors, making the signal path control automatic rather than manual.
Data Source
AI summary
A pluggable module, for testing time-synchronization signals of network elements, includes a first connector for connecting to test equipment, a second connector for connecting to a network port of a network element, and at least one driver. The at least one driver is connected between the first and second connectors and is configured to buffer and relay a time-synchronization signal between the network element and the test equipment.