# Instance: 2.1 + 3.7 — BMS Head-End

Module: [bms/head-end](../../../_playbook/modules/bms/head-end.md)
WBS leaves: 2.1 (supply), 3.7 (installation)

## Project-specific values

- **Server siting:** Lower Ground BMS Server Room (per `A-013`, pending Q-011).
- **Equipment list:** see `05-working-docs/A6-head-end-equipment.yaml` — 9 line items.
- **Power:** dedicated 32 A 230 V 1-φ feed, UPS-protected (per A7 head-end load 1,080 W, UPS 3 kVA / 30-min).
- **Network:** core switch SW-CORE 24× 1G + 4× SFP — connects 6 edge switches over fiber backbone (per A5).
- **Software:** BMS Contractor's standard graphics + driver suite, configured for 470 I/O points and 28 graphics pages (per B1 + B2).
- **Spare capacity at delivery:** server CPU/memory/disk sized at ≤50 % utilization at full I/O load (per BMS-01 spec).
- **FAT location:** BMS Contractor's facility, week 14–15 of D1 schedule.

## Quantities driving BOQ

- 1× server, 1× operator workstation, 1× graphics PC, 1× UPS, 1× rack, 2× monitors, 1× KVM, 1× printer (per A6).
- Installation: 1× lot — server-room rack populate, network terminations, software commissioning. ~80 hr of B4 manhours.