Integrated Modem Network Interface Device
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Solution Overview
Problem
Current network interface devices require separate data cables for modulators-demodulators, leading to increased costs and electromagnetic losses, and require customer access for maintenance and upgrades.
Innovation Solution
Incorporating a modulator-demodulator into the network interface device within an enclosure, eliminating the need for a separate data cable and allowing for remote diagnosis and maintenance, with the option to provide electrical power and support expansion cards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate data cable is used to connect the modulator-demodulator to the network interface device, then the modulator-demodulator can be externally accessible, but the cost increases and electromagnetic losses occur
Solution Approach 1:
The patent integrates the modulator-demodulator directly into the network interface device enclosure, eliminating the need for a separate data cable connection. This merging of components removes the cable-related electromagnetic losses and improves signal transmission quality while reducing overall system complexity and cost.
2Ease of repair
If the modulator-demodulator is placed outside the network interface device enclosure, then it can be accessed for maintenance, but customer access is required and service continuity is disrupted
Solution Approach 1:
The modulator-demodulator is designed to remain installed within the network interface device enclosure at the provider's location, eliminating the need for customer access for maintenance. The provider can service and replace the modulator-demodulator remotely without disrupting customer service, enabling self-service maintenance from the provider's perspective.
3Loss of energy
If the modulator-demodulator is integrated into the network interface device, then cable costs and electromagnetic losses are eliminated, but the device complexity increases
Solution Approach 1:
The modulator-demodulator is integrated into the network interface device enclosure, combining previously separate components into a single unified device. This integration eliminates cable costs and electromagnetic losses while the shared enclosure and power infrastructure minimize the increase in overall device complexity.
4Duration of action of stationary object
If the modulator-demodulator remains with the network interface device when customers move, then service continuity is maintained, but the device must be designed for portability and reuse
Solution Approach 1:
The network interface device is designed as a portable, reusable unit that can be transferred between customer locations. The integrated modulator-demodulator and power circuitry are configured to operate independently at each location, enabling the device to serve multiple customers sequentially while maintaining service continuity without requiring customer-owned equipment.
Data Source
AI summary
A network interface to a data network has a modulator-demodulator. The modulator-demodulator receives a modulated carrier signal from an input connection. A power circuit connected to the input connection receives electrical power from a loop plant and provides the electrical power to the modulator-demodulator.