Telecom Power Distribution via Existing Wire Pairs
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Solution Overview
Problem
Traditional telecommunications systems face challenges in providing reliable electrical power to remote equipment, especially in locations where connecting a mains electricity supply is difficult, and existing methods are inadequate for supporting high-bandwidth services over long distances using twisted wire pairs.
Innovation Solution
The system employs a non-conducting link, such as wireless or optical fibre, between intermediate points, with power delivered over conducting links from the network connection point and customer premises, allowing for efficient power apportionment and voltage control to maintain service even in case of power failures, using conversion equipment at each end to support high-bandwidth communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a non-conducting link (optical fibre or wireless) is used between intermediate points, then high-bandwidth communication over long distances is enabled, but electrical power must be supplied to transceivers at each end which requires difficult-to-connect mains electricity supplies
Solution Approach 1:
The patent uses the existing telephone wire pair as an intermediary to deliver electrical power to remote transceivers that would otherwise be difficult to power. The wire pair serves as a mediator between the power source and the remote equipment, enabling power delivery without requiring direct mains electricity connections to remote locations.
Solution Approach 2:
The telephone wire pair is given multiple functions: it continues to carry voice telephony traffic while simultaneously serving as a power delivery conduit and supporting data communications. This multi-functionality eliminates the need for separate power infrastructure at remote locations.
2Productivity
If DSL technology is used to carry high-speed digital information over existing telephone lines, then bandwidth is improved, but transmission losses increase over long distances limiting achievable bitrate
Solution Approach 1:
The patent segments the communication link into two parts: a long-distance segment using optical fibre or wireless between intermediate points (where power is available), and a short local segment using the telephone wire pair to the customer premises. This segmentation allows high bandwidth over long distances while minimizing losses on the final segment.
Solution Approach 2:
Intermediate points with optical fibre or wireless connectivity serve as intermediaries that bridge the gap between the exchange and remote customer premises. These intermediaries provide a low-loss transmission path for the majority of the distance, with power delivery enabled through the existing wire pair infrastructure.
3Productivity
If access multiplexers are placed at intermediate points closer to users, then distance losses are reduced and multiple users can share bandwidth, but the system becomes more complex and requires power supplies at locations difficult to access
Solution Approach 1:
The access multiplexer at the intermediate point is designed to be multi-functional, handling voice telephony, data communications, and power delivery through the same wire pair infrastructure. This reduces overall system complexity by consolidating functions rather than adding separate infrastructure for each function.
Solution Approach 2:
The system allows remote transceivers to power themselves through the wire pair without requiring external power connections or complex power distribution infrastructure. The power is delivered automatically through the existing telephony line infrastructure that is already in place.
Data Source
AI summary
A communications connection comprises intermediate connection points (6,11) connected by a non-conducting communications link (20), with conversion equipment in one or both intermediate points for converting communications between electrical and non-electrical carriers, and each being arranged to be powered from the respective ends (1, 12). If a metallic path (18) is present between the two intermediate points, the system can be arranged to use this for a limited connection service in the event of loss of electrical power to one or both of the intermediate points (6,11).