Jitter analysis for DS-3 to SONET interface circuit with reduced complexity
Bibliographic record
Abstract
The feasibility is discussed of designing a DS-3 to 28 VT 1.5 synchronous optical network (SONET) interface circuit without using intermediate DS-2 and DS-1 desynchronizer phase-lock loops (PLLs). Elimination of intermediate PLLs results in a significant reduction in the cost and complexity of SONET interface circuits for the existing asynchronous digital multiplex hierarchy. The primary concern of implementing such an interface is the effect on accumulated DS-1 waiting time jitter. In order to analyze jitter accumulation, two multiplex models are used. Both models consist of back-to-back M13 multiplexing followed by back-to-back DS-1 to VT 1.5 mapping. The first model includes intermediate DS-2 and DS-1 desynchronizer PLLs, while the second model does not. The jitter analysis and results for both models are given. It is estimated that elimination of these PLLs can reduce the circuit complexity by 14000 gates in a DS-3 to 28 VT1.5 interface design.>
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".