Cable Parking System for Network Element Expansion
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Solution Overview
Problem
Traditional backplanes in network elements are purely electrical and lack flexibility, making it difficult to expand rack-mounted network modules with different types of cards while maintaining airflow and EMI integrity.
Innovation Solution
A cable parking system that includes a filler card with a park module to support cables for future working cards, allowing pre-cabling of network elements before shipment, and using pluggable module holders to protect and route cables, which can be easily swapped with working cards like client, line, or fabric cards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a backplane is used for electrical connectivity between modules, then electrical connection is achieved, but flexibility for future expansion with different card types is limited
Solution Approach 1:
The backplane is segmented into multiple independent cable connection points, allowing each slot to have its own dedicated cable routing. This enables flexible reconfiguration and expansion without requiring a complete backplane redesign, as cables can be individually routed and connected to support different card types.
Solution Approach 2:
The cable management system is designed with universal connectors and routing paths that can accommodate multiple card types and configurations. The same cable infrastructure supports various working card types (client, line, fabric cards) through standardized connection interfaces, enabling future expansion without additional complexity.
2Adaptability or versatility
If filler cards are used to maintain airflow and EMI integrity, then structural integrity is maintained, but cable management for future cards becomes difficult
Solution Approach 1:
Cables are pre-routed and pre-positioned through the filler cards during manufacturing, with cable parks and guides already in place. This preliminary cable management setup ensures that when working cards are later installed, the cables are already properly positioned and connected, maintaining both airflow integrity and EMI shielding while enabling easy cable access and management.
Solution Approach 2:
The filler cards act as intermediary components that maintain the physical structure, airflow paths, and EMI shielding while incorporating cable parks and routing features. These intermediaries allow cables to be managed and accessed without compromising the structural integrity, airflow, or electromagnetic interference protection that the filler cards provide.
3Productivity
If the system is cabled after installation, then flexibility for card replacement is maintained, but installation time and disruption increase
Solution Approach 1:
The system is pre-cabled during manufacturing with all necessary cables routed through the filler cards and connected to the cable parks. This preliminary cabling action allows working cards to be quickly swapped in and out without requiring cable reconfiguration, significantly reducing installation time and disruption while maintaining full flexibility for card replacements.
Solution Approach 2:
The cable parking system is designed to be self-contained within the filler card structure, with cables automatically positioned and secured as cards are installed or removed. This self-service cable management eliminates the need for manual cable routing during card replacements, reducing installation time while preserving adaptability for different card types.
Data Source
AI summary
Systems and methods for a cable parking system for a network element and a method thereof comprising a filler card configured to be inserted in a slot of a plurality of slots, wherein the network element includes a shelf containing the plurality of slots. The network element including a park module configured to attach to a faceplate of the filler card and configured to receive and hold a plurality of cables for connectivity between the plurality of slots. The cable parking system where the filler card is inserted in lieu of a working card that includes one or more of a client card, a line card, a fabric card, and a combination thereof, and wherein the park module supports the plurality of cables for a future working card. The cable parking system further comprising one or more pluggable module holders each configured to insert in the park module and each configured to hold one or more pluggable modules with a cable connected thereof.