clm_03c73f0d30ae4594ba316a71ee3d0f91_r1

VR2-0538

① SA Source

• Source: 開啟完整 SA 文章
• Section: Rack Level Infrastructure: Power Delivery
• Line hint: 629

Context Before

Source: OCP, Meta, SemiAnalysis

Evidence

The BBU/CBU and switch rack will be connected to the GPU rack with 50V horizontal busbars

Context After

We have more detailed power and architecture details in our VR NVL72 Component BoM and Power Budget Model ↗.

Networking: NVLink 6, Rubin Scale Out

② Atomic Claim

BBU／CBU 與 switch rack 會透過 50V horizontal busbars 連接 GPU rack。

• Epistemic Mode: HYPOTHETICAL
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "frame_type": "NARY_RELATION",
  "participants": [
    {
      "node": {
        "id": "04_knowledge_base/BBU",
        "label": "BBU"
      },
      "role": "endpoint_or_system"
    },
    {
      "node": {
        "id": "04_knowledge_base/Capacitor Backup Unit (CBU)",
        "label": "CBU"
      },
      "role": "connected_entity"
    },
    {
      "node": {
        "id": "04_knowledge_base/Busbar",
        "label": "busbars"
      },
      "role": "connected_entity"
    },
    {
      "node": {
        "id": "04_knowledge_base/GPU",
        "label": "GPU"
      },
      "role": "connected_entity"
    }
  ],
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [
      "50"
    ],
    "temporal_mentions": []
  },
  "relation_type": "CONNECTS_TO"
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
endpoint_or_system	BBU	BBU
connected_entity	CBU	04_knowledge_base/Capacitor Backup Unit (CBU)
connected_entity	busbars	Busbar
connected_entity	GPU	GPU

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。