Network Access Device Interface Extension for Sealed Water Protection
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Solution Overview
Problem
Accessing network access devices (NADs) located in difficult-to-reach areas, such as manholes or handholes, is challenging due to the need for technicians to physically travel to these locations and often involves pumping out water to access the device, which is inefficient and prone to damage from water exposure.
Innovation Solution
An interface extension system comprising a sealed cable and enclosure with a removable cap, allowing the interface connector to be extended from the NAD housing, creating a water-tight chamber that facilitates access without exposing the internal components to water, enabling technicians to connect management equipment from a safer and drier location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the NAD is sealed within a housing to prevent water damage, then the reliability of the device is improved, but the ease of operation deteriorates because technicians must physically access the sealed housing in difficult-to-reach locations
Solution Approach 1:
The interface extension system divides the access function from the sealed housing by extending the interface connector through a cable to an external enclosure. This segmentation allows the housing to remain sealed for water protection while the interface connector is accessible externally, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The interface extension acts as an intermediary between the sealed NAD housing and the technician's user interface device. It transfers data and power signals without requiring direct physical access to the housing, enabling operation while maintaining the sealed protective barrier.
2Ease of operation
If technicians travel to the NAD location and remove caps from interface ports to access the device, then the ease of operation is improved, but the time required for access increases and water exposure risks worsen
Solution Approach 1:
The interface extension is pre-installed and extends the interface connector to an externally accessible location before the technician arrives. This preliminary action eliminates the need for technicians to travel to difficult-to-reach locations and perform time-consuming cap removal procedures, significantly reducing access time while maintaining operational convenience.
3Ease of operation
If water is pumped from manholes or handholes to enable access to the NAD, then the ease of operation is improved, but the complexity of the procedure increases and water exposure risks worsen
Solution Approach 1:
The interface extension extracts the interface connector from the sealed housing and positions it in an externally accessible enclosure. This extraction eliminates the need for complex water pumping procedures, as technicians can access the interface connector directly at the extended location without entering or draining the manhole or handhole, significantly simplifying the access procedure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution simplifies and safeguards the access process by allowing technicians to manage NADs from a distance, reducing water exposure risks and eliminating the need for manual water removal, thereby enhancing maintenance efficiency and equipment protection.
Implementation Method 1
The removable cap forms a water-tight seal with the enclosure to prevent water from entering the chamber
Data Source
AI summary
Embodiments of the present disclosure generally pertain to systems and methods for interfacing with a network access device (“NAD”). An NAD in accordance with an exemplary embodiment of the present disclosure comprises an interface extension extending from a housing of the NAD. The interface extension comprises a cable and an enclosure that is sealed by a removable cap. The cable extends from a port on the housing, and the enclosure is positioned on the cable a desired distance from the housing. The removable cap screws onto the enclosure to form a water-tight chamber within the enclosure. The interface extension further comprises an interface connector connected to an end of the cable, and the interface connector is positioned within the chamber when the removable cap is screwed onto the enclosure. When access to the NAD is desired, a technician removes (e.g. unscrews) the removable cap from the enclosure and connects the interface connector to a user interface device. Accordingly, access to the interface of the NAD is facilitated.