VR2R-0525
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Bi-directional SerDes for Scale-Up - Line hint:
434
Context Before
In optics, bidirectional interconnect can be achieved by integrating an optical circulator to a transceiver. The circulator works by routing the inbound and outbound signal onto separate paths, ensuring no overlaps between both at the photodiode receiver. Bidirectional interconnect is, however, much trickier in the copper domain.
Evidence
A circulator cannot be used as copper cables are linear transmission lines, which means that the inbound
Context After
and outbound signals will be summed at the receiver through superposition. The receiver at each end of the copper wire therefore needs a mechanism to separate the local TX from the local RX.
② Atomic Claim
由於 copper cables 是 linear transmission lines，因此 circulator 無法使用；這意味著 inbound……
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "continues in VR2R-0526",
"numeric_mentions": [],
"temporal_mentions": []
},
"reason": "EXTRACTION_FRAGMENT_GENERAL_COPPER_TRANSMISSION_LINE_PHYSICS",
"statement": "a circulator cannot be used because copper cables are linear transmission lines, meaning the inbound…"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| — | — | — |
⑤ Human Review
請在 Properties 逐項確認：
- 原文 → Atomic Claim 是否忠實
- Atomic Claim → Semantic Frame 是否忠實
- Canonical Entity mapping 是否正確
- Epistemic mode 是否保留原文語氣
- 最後選擇
review_action
Review state
Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。