SA260324R-0285
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Vera ETL256 - Line hint:
354
Context Before
Each Vera ETL rack consists of 32 compute trays, 16 above and 16 below, arranged symmetrically around four 1U MGX ETL switch trays (based on Spectrum-6) in the middle. The symmetric split is deliberate: it minimizes cable length variance between compute trays and the spine, keeping all connections within copper reach.
Evidence
From each switch tray, rear-facing ports connect to that copper spine for intra-rack communication
Context After
, while 32 front-facing OSFP cages provide optical connectivity to the rest of the POD.
② Atomic Claim
每個 switch tray 的後方 ports 連到 copper spine，負責機櫃內通訊。
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"attribute": "PORT_COUNT",
"context_nodes": [],
"entity": {
"id": "04_knowledge_base/Copper",
"label": "copper"
},
"frame_type": "ATTRIBUTE",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
},
"value": {
"numeric_mentions": [],
"value_text": "每個 switch tray 的後方 ports 連到 copper spine，負責機櫃內通訊。"
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| entity | copper | Copper |
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。