Sheet N-002-EN: Hall key plan of 15 compute units and 10 central cabinets

What this sheet shows

N-002-EN is the whole-hall key plan at scale 1:200, drawn as two strips. The upper strip carries deployment plan N-201-EN (X 0–36 m) and the part of N-202-EN (X 35–72 m) up to axis 53.3; axis labels on that strip run from 0.0 to 53.3. The lower strip resumes N-202-EN at the same 53.3 axis and carries N-203-EN (X 71–107 m) out to axis 106.6. N-202-EN is the zone drawn on both strips, because its printed range crosses that strip break. The zone callouts overlap at the joints: N-201-EN runs to 36 m and N-202-EN starts at 35 m; N-202-EN runs to 72 m and N-203-EN starts at 71 m. Under the plans, the unit index lists CU-01 through CU-15 and the central-cabinet index lists OOB-A through OOB-B. The legend fixes the abbreviations: A01 is NETA-CU01, B01 is NETB-CU01, a GPU number such as 043 is R043, and a CDU label such as 08A is CDU-08A. Axis values are in metres. The X-range column of each index is in millimetres. Y=0 is the external wall line and Y=6000 is the partition axis; the electrical zone north of Y6000 is facility context. Dashed lines labeled A and B cross the lower strip, and a dashed line labeled C crosses the upper strip through the central cabinets. The hall on this plan is the GPU hall in the GPU hall reference.

How the unit index is organized

Each unit row records the same facts, and CU-01 is the pattern: GPU cabinets R001–R006, leaf groups LG01 and LG02, X range 2,355–7,555 mm, and a dash for the fan wall at both NETA and NETB. On the strip that row is A01, cabinets 001 through 006, and B01, with CDUs 01A and 01B drawn with the unit. The X column shows which neighbors share an edge. The shared millimetre is printed on both rows: 7,555 between CU-01 and CU-02, 19,645 between CU-03 and CU-04, 31,845 between CU-05 and CU-06, 61,945 between CU-08 and CU-09, 74,045 between CU-10 and CU-11, 86,245 between CU-12 and CU-13, and 98,445 between CU-14 and CU-15. The next range starts later at 14,445, 26,645, 38,745, 68,845, 81,045 and 93,245 mm. The central-cabinet ranges fall in the opening between the units: CU-07 ends at 43,945 mm and CU-08 begins at 56,745 mm. CU-15 closes the index at R085–R090, leaf groups LG29 and LG30, X 98,445–103,645 mm, with a dash in both fan-wall columns. The leaf-group column names the groups that sit in the unit.

Central cabinets and the fan-wall rule

Ten central cabinets sit in X order inside the opening between CU-07 and CU-08. OOB-A, OOB aggregation, is 45,495–46,295 mm with FW-04 in front. CVS-A, North–south spine, is 46,295–47,095 mm. SPA-1, SPA-2 and SPA-3 are compute spine, plane A, at 47,095–47,895 mm, 47,895–48,695 mm and 48,695–49,495 mm, with FW-05 in front of SPA-3. SPB-1, SPB-2 and SPB-3 are compute spine, plane B, at 51,145–51,945 mm, 51,945–52,745 mm and 52,745–53,545 mm, with FW-05 also in front of SPB-1. SPA-3 ends at 49,495 mm; SPB-1 begins at 51,145 mm. CVS-B, North–south spine, is 53,545–54,345 mm, and OOB-B, OOB aggregation, is 54,345–55,145 mm with FW-06 in front. The strips share axis 53.3. The upper strip's central-cabinet labels run OOB-A, CVS-A, SPA-1, SPA-2, SPA-3, SPB-1, SPB-2, SPB-3 and CVS-B. CVS-B's range starts at 53,545 mm, after axis 53.3, and its label is printed on the upper strip. SPB-3's range, 52,745–53,545 mm, crosses axis 53.3, and the lower strip prints SPB-3, CVS-B and OOB-B at its left edge. Note 3 states the facing rule: every fan wall faces a cross aisle and network cabinets only, and GPU cabinet fronts keep the 1,200 mm tray-withdrawal zone. The index names several walls on two rows. FW-01 is the fan wall at NETB for CU-02 and at NETA for CU-03; FW-02, FW-03, FW-07, FW-08 and FW-09 are entered the same way. FW-04 is the NETB wall of CU-07 and the wall in front of OOB-A. FW-06 is the wall in front of OOB-B and the NETA wall of CU-08.

Status

The title block dates the sheet 2026-10-05 and issues it as Public Edition P2, number N-002-EN, sheet 3 of 30, scale 1:200, units millimetres. The status line reads as a reference design for study and evaluation, not for construction. Note 1 states the row content this plan indexes: 90 GPU cabinets, 40 network cabinets (30 unit + 10 central), 30 CDUs and 9 fan walls, and it marks the fan walls as facility context. Note 2 states that cross-aisle widening relative to the previous layout totals 2,240 mm (N-204-EN). The note calls that a difference in the reference row layout and states that the building geometry is unchanged. Note 4 is the open item, in the sheet's own words: door positions are not supplied and are not shown. The drawing set is 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.