① Slot bound to BOM
Factory programming locks module type per slot table; on-site slot change needs config reload and spare code update.
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Modular chassis control
Mix relay, dimming, HVAC and curtain modules in slots — scalable room grades.
- 4–8 Standard slot count
CPU + function modules - 8–32 Relay circuit expansion
stacked by slot - Hot-swap Module spares
coded to slot - Same series Economy → luxury
unified chassis look
* Slot and circuit counts are template conventions; contract attaches 《Chassis slot configuration table》 and terminal cross-reference; no unauthorized slot swaps on site.
Chassis slot configuration table
Core tender attachment — each SLOT module model, output circuits, and notes; power-on and accept circuit by circuit. Highlighted: CPU master and main relay slot.
| Slot | Module type | Circuits | Notes |
|---|---|---|---|
| SLOT1 | Master CPU module | — | Scene engine · RS485 master · local persistence |
| SLOT2 | 8-circuit relay module | R1–R8 | Main, downlight, bath, minibar, outlets, etc. |
| SLOT3 | 2-circuit dimmer module | D1–D2 | Bedside read, mood strip (0–10V) |
| SLOT4 | FCU HVAC module | AHU-1 | Two-pipe FCU; Welcome/vacant scenes |
| — | (Panel low-voltage) | — | Entry / bedside RS485 panels via CPU bus |
| — | Card power | CP-1 | Dry contact to CPU DI; not a slot module |
| Slot | Module type | Circuits | Notes |
|---|---|---|---|
| SLOT1 | Master CPU module | — | Dual bus; living + bedroom zone scenes |
| SLOT2 | 12-circuit relay module | R1–R12 | Living, dining, entry, corridor main lighting |
| SLOT3 | 8-circuit relay module | R13–R20 | Master, second bed, dual bath, wardrobe |
| SLOT4 | 4-circuit dimmer module | D1–D4 | Strip, wall wash, dining mood |
| SLOT5 | FCU HVAC module ×2 channel | AHU-1 / AHU-2 | Living and master independent FCU |
| SLOT6 | curtain module ×2 | C1–C4 | Living large window + master + second bed |
| SLOT7 | VRF gateway module (optional) | VRF-1 | VRF retrofit replaces FCU slot |
| SLOT8 | Reserve / expansion | — | Spare slot; later add without chassis swap |
Engineering essentials · Four implementation rules
Modular acceptance centers on slot table and terminal mapping — points below for LV riser construction brief.
② Terminal per-circuit acceptance
R1–Rn / D1–Dn match mains box circuits one-to-one; sign-off cannot use vague "functions OK".
③ LV riser cooling and access
Chassis ≥20 cm service clearance; module spacing for cooling; mains/LV partitioned.
④ Modular spares
After-sales swap failed slot module only, not whole box; stock SLOT2 relay, SLOT4 HVAC high-turn parts.
Four deployment route comparison
Modular excels atcircuit expansion and field module swap— compared to other three routes below.
| Comparison | Wireless RCU | Central wired | RS485 bus | Modular chassis |
|---|---|---|---|---|
| Use case | Existing retrofit | Luxury new build | Chain standard store | Suite · multi-circuit |
| Circuit expansion | ★★☆☆☆ | ★★★☆☆ | ★★★☆☆ | ★★★★★ |
| Field module swap | ★★★☆☆ | ★★☆☆☆ | ★★★★☆ | ★★★★★ |
| Install flexibility | ★★★★★ | ★★☆☆☆ | ★★★☆☆ | ★★★☆☆ |
| Stability | ★★★☆☆ | ★★★★★ | ★★★★☆ | ★★★★★ |
| Acceptance focus | Pairing · signal | Terminals · circuits | Address · topology | Slot table · circuit mapping |
Guestroom control technology · Four deployment routes
Column A four pages — current modular chassis route; other routes on respective tech pages.
