Sheet N-202-EN: Central OOB, CVS and spine cabinets and fan-wall fronts on X 35–72 m

What this sheet shows

N-202-EN is the deployment plan at scale 1:100 for X 35–72 m. The line under the top border states the contents: all GPU and network cabinet IDs, CDUs and fan walls (facility context), column axes, maintenance zones and section cuts. That line also states that door positions are not supplied and are not shown. The drawn row runs from R035 and R036 through NETA-CU10 and R055–R058. Between NETB-CU07 and NETA-CU08 the plan draws the central cabinets OOB-A, CVS-A, SPA-1, SPA-2, SPA-3, SPB-1, SPB-2, SPB-3, CVS-B and OOB-B. CDU-06B, CDU-07A, CDU-07B, CDU-08A, CDU-08B, CDU-09A, CDU-09B and CDU-10A sit on the wall side of the row. FW-03, FW-04, FW-05, FW-06 and FW-07 are each labeled fan wall 3000×1400 (facility context), with front zone 1050 and shared use. North of Y6000, NPS-7-06, NPS-8-01 and NPS-8-02 are each marked reserved area (facility context). Column-axis bubbles read 35.9, 41.7, 47.5, 53.3, 59.1, 64.9 and 71.8, the metre axis is marked 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70 and 72, and a graphic scale of 5 m is marked 1:100. A dashed cut lettered C at both ends is drawn through SPA-2. A dashed cut lettered A at both ends is drawn on the line between R043 and R044 and through CDU-08A. This is the X 35–72 m plan in the GPU hall reference.

Where each network cabinet sits

The tables give every network cabinet on this sheet an X0–X1 in the title block's millimetres. NETB-CU06 is 36,245–37,045. The plan prints XP-06 1,700 on the open interval after it, and NETA-CU07 is 38,745–39,545. R037 through R042 lie between NETA-CU07 and NETB-CU07 at 43,145–43,945. The plan prints XP-C1 1,550 on the open interval after NETB-CU07, and OOB-A is 45,495–46,295. From OOB-A the next cabinets share edges: CVS-A 46,295–47,095, SPA-1 47,095–47,895, SPA-2 47,895–48,695 and SPA-3 48,695–49,495. The plan prints XP-C2 1,650 after SPA-3. The following run shares edges from SPB-1 51,145–51,945 through SPB-2 51,945–52,745, SPB-3 52,745–53,545, CVS-B 53,545–54,345 and OOB-B 54,345–55,145. The plan prints XP-C3 1,600 after OOB-B, and NETA-CU08 is 56,745–57,545, with R043 through R048 between it and NETB-CU08 at 61,145–61,945. NETA-CU09 starts on that same 61,945 (61,945–62,745), with R049 through R054 between it and NETB-CU09 at 66,345–67,145. The plan prints XP-09 1,700 after NETB-CU09, and NETA-CU10 is 68,845–69,645, with R055 through R058 after it. ΔX vs previous is -2,990 on NETB-CU06, -2,690 from NETA-CU07 through SPA-3, -2,590 from SPB-1 through OOB-B, -2,540 from NETA-CU08 through NETB-CU09, and -2,240 on NETA-CU10. Note 3 states the placement rule: cabinets sit on IT support rails clear of the main-beam zone (axis ±160 mm) at every position.

Front zones and the Y chain

Front clearance is printed on each network-cabinet row. The table gives 1050 to FW-03 to NETB-CU06 and NETA-CU07, 1050 to FW-04 to NETB-CU07 and OOB-A, 1050 to FW-05 to SPA-3 and SPB-1, 1050 to FW-06 to OOB-B and NETA-CU08, and 1050 to FW-07 to NETB-CU09 and NETA-CU10. It gives 2450 cold aisle to CVS-A, SPA-1, SPA-2, SPB-2, SPB-3, CVS-B, NETB-CU08 and NETA-CU09. CVS-A, SPA-1 and SPA-2 sit between the FW-04 pair and SPA-3. SPB-2, SPB-3 and CVS-B sit between SPB-1 and OOB-B. NETB-CU08 and NETA-CU09 sit between NETA-CU08 and NETB-CU09, with R043 through R048 before them and R049 through R054 after them. The callout names the fan-wall case: network cabinet front zone where a fan wall faces (1,050 mm). Switch front withdrawal needs 1,000 mm and fan-wall service needs 850 mm; both use the same 1,050 mm zone and are not performed at the same time, which the sheet marks with red cross-hatch. GPU cabinet fronts keep a 1,200 mm tray-withdrawal zone, marked with orange hatch, and the callout states that fan walls do not face GPU cabinets. Note 1 is the Y chain those zones sit in: wall line Y0, wall zone Y200, CDU ≤950 to Y1150, rear maintenance 1000 to Y2150, cabinet 1200 to Y3350, then cold aisle 2450 to the fan-wall rear and column-flange line Y5800 (flange Y5825, partition axis Y6000). Note 1's cabinet 1200 is the cabinet depth ending at Y3350. The callout's 1,200 mm is the orange tray-withdrawal zone at the GPU fronts. Note 2 names the rear zone 1000, drawn as blue dots, as GPU rear access and network PSU/fan replacement from the rear. The Y scale prints 4400 between 3350 and Y6000. Y3350 plus the callout's 1,050 mm is that printed 4400, and 4400 plus the 1400 in the fan-wall label 3000×1400 is the column-flange line Y5800. The same 1,050 mm plus 1400 is note 1's 2450, the cold aisle carried to the fan-wall rear.

Status

The title block dates the sheet 2026-10-05 and issues it as Public Edition P2, number N-202-EN, sheet 10 of 30, scale 1:100, units mm. The sheet title is Deployment plan X 35–72 m. The status line reads: reference design for study and evaluation — not for construction. The header says door positions are not supplied and are not shown. Note 4 says door positions are to be confirmed, and it states that electrical-zone reserved areas north of Y6000 are facility context. On the plan those areas are the boxes NPS-7-06, NPS-8-01 and NPS-8-02. FW-03, FW-04, FW-05, FW-06 and FW-07 are marked facility context on the fan-wall labels. The drawing is part of the Public Edition P2 network reference design.

Sheet guide — the devices on this drawing

Get the full drawing set

This sheet is one page of the GPU Hall Network Reference Design — Public Edition P2 (75 pages, 1.6 MB) — a direct PDF download with a published SHA-256 checksum, no registration. The complete coordinated set is on the downloads page. Background guides: data center one-line diagrams · GB300 NVL72 facility requirements · liquid cooling and CDU design.