Group Wiring System Online Wire Pair Location
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Solution Overview
Problem
Conventional methods for wire pair identification in communication systems are labor-intensive and time-consuming, requiring server system disconnection for relocation, which leads to short circuits due to low DC voltage impedance.
Innovation Solution
A group wiring system with a testing device that applies a low-frequency voltage signal above 200 Hz to create circuit impedance higher than the filtering means, allowing light emitting means to function and enable wire pair location without server system detachment, using a hub, distribution frame, and testing circuits with light emitting and filtering means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a low DC voltage testing signal is applied to locate wire pairs, then the light emitting means can identify wire pair connections, but the circuit impedance becomes too low causing short circuits when the server system is connected
Solution Approach 1:
The patent changes the frequency parameter of the testing signal from low frequency (DC) to high frequency (above 200 Hz). This parameter change increases the circuit impedance when the signal passes through the hub, preventing short circuits while maintaining the ability to identify wire pairs through the light emitting means
Solution Approach 2:
The patent makes the testing signal dynamic by using a variable frequency source that can be adjusted above 200 Hz. This dynamic adjustment allows the system to adapt to different operational states (server connected or disconnected) while maintaining safe impedance levels
2Reliability
If the server system is disconnected before locating wire pairs, then short circuits are prevented, but the locating process becomes labor-intensive and time-consuming
Solution Approach 1:
By changing the frequency parameter to above 200 Hz, the system achieves both safety (preventing short circuits) and efficiency (allowing online locating), eliminating the need to disconnect the server system
Solution Approach 2:
The high frequency signal acts as an intermediary that allows the locating function to operate safely through the connected hub without directly conflicting with the low voltage signals used by the server system
3Ease of operation
If the light emitting means is built into the group wiring system, then wire pair identification is simplified, but relocating wire pairs requires removal of all server connections
Solution Approach 1:
The built-in light emitting means uses high frequency testing signals (>200 Hz) that can operate safely through connected servers, eliminating the need to remove server connections during relocation while maintaining ease of wire pair identification
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
Enables efficient on-line wire pair location, reducing labor and time, and preventing short circuits by using a low-frequency voltage signal that decays and filters through the hub, maintaining normal system operation.
Implementation Method 1
the light emitting means will emit light for assisting wire pair identification
Implementation Method 2
The testing voltage is a low-frequency voltage signal having a frequency higher than 200 Hz that creates a circuit impedance higher than an impedance of the filtering means when passing through the hub
Data Source
AI summary
A group wiring system includes a hub of a server system, a distribution frame including a plurality of wire pair receptacles, a plurality of remote receptacles, a testing device, and a plurality of testing circuits. Each testing circuit is coupled between conductive wires of contacts of an associated wire pair receptacle. Each testing circuit includes a light emitting device and a filtering device. The light emitting device emits light when the testing device applies a testing voltage to the contacts. The testing voltage is a low-frequency voltage signal having a frequency higher than 200 Hz that creates a circuit impedance higher than an impedance of the filtering device when passing through the hub, thereby decaying and filtering the voltage signal and allowing locating test while the server system is on-line. A method for locating wire pairs in a group wiring system is also disclosed.