VR2R-0527
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Bi-directional SerDes for Scale-Up - Line hint:
434
Context Before
A circulator cannot be used as copper cables are linear transmission lines, which means that the inbound and outbound signals will be summed at the receiver through superposition.
Evidence
The receiver at each end of the copper wire therefore needs a mechanism to separate the local TX from the local RX.
Context After
The solution to this problem is the use of a hybrid at each end of the wire. Without a hybrid, there will be self-interference at the local RX because both the local TX and local RX are being transmitted along the same wire:
② Atomic Claim
因此 copper wire 兩端的 receiver 都需要一套 mechanism，把 local TX 與 local RX 分離。
- Epistemic Mode:
INFERRED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "inferred from superposition problem",
"numeric_mentions": [],
"temporal_mentions": []
},
"reason": "GENERAL_RECEIVER_REQUIREMENT_WITHOUT_CANONICAL_ENTITY",
"statement": "the receiver at each end of the copper wire needs a mechanism to separate local TX from local RX."
}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。