PON Converter Power Supply via Photoelectric Composite Cable
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Solution Overview
Problem
In passive optical networks (PONs), the difference in interface types between network devices and terminal devices often requires an intermediate device for signal interaction, but some terminal devices lack a power supply, preventing effective signal interaction due to the inability to power the intermediate converter.
Innovation Solution
A converter system utilizing a photoelectric composite cable that integrates an optical fiber for PON protocol signals and a power supply line, allowing the network device to power the converter and reduce cable complexity, with a power supply selection unit to ensure stable power from either the network or terminal device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an intermediate device (converter) is arranged between the network device and terminal device to implement signal interaction, then signal compatibility between different interface types is achieved, but the terminal device cannot supply power to the converter, causing signal interaction to fail
Solution Approach 1:
Instead of the terminal device supplying power to the converter (conventional approach), the network device supplies power to the converter through the optical fiber cable. This inversion of the power supply direction resolves the contradiction by enabling the converter to receive power from a device that definitely has power supply capability, thus ensuring both interface compatibility and reliable signal interaction.
Solution Approach 2:
The patent introduces a power supply module as an intermediary component within the converter. This module receives power from the network device through the optical fiber cable and provides power to the converter's internal components, enabling the converter to function as a reliable intermediary device for signal conversion without being constrained by the terminal device's power supply capability.
2Reliability
If separate cables are used for optical signal transmission and power supply, then power can be reliably supplied to the converter, but the network architecture complexity increases
Solution Approach 1:
The patent merges the optical signal transmission function and power supply function into a single optical fiber cable. The cable includes both optical fibers for signal transmission and power supply lines for power delivery, eliminating the need for separate power cables and reducing overall network architecture complexity while maintaining reliable power supply to the converter.
Solution Approach 2:
The optical fiber cable is designed with multi-functionality, serving both as an optical signal transmission medium and as a power supply conduit. This universal cable structure reduces the number of components needed in the network architecture while ensuring reliable power delivery to the converter through the same cable that carries optical signals.
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 enables reliable signal interaction between network and terminal devices by powering the converter, reducing network architecture complexity and improving data transmission efficiency across PON-based scenarios.
Implementation Method 1
an optical fiber configured to transmit an optical signal with a passive optical network PON protocol format
Implementation Method 2
a first transmission line configured to transmit a first power supply current
Data Source
AI summary
Embodiments of this application disclose a converter and a transmission system that are configured to effectively ensure successful signal transmission between a network device and a terminal device. The converter is configured to connect to a first cable, the first cable is a photoelectric composite cable, and the first cable includes an optical fiber configured to transmit an optical signal with a passive optical network PON protocol format and a first transmission line configured to transmit a first power supply current. The first transmission line is connected to a conversion unit, the conversion unit is further configured to connect to a data interface, and the data interface is configured to transmit an electrical signal with a target protocol format.