RCU Controllers
256-ch RS485 RCU host
256-ch RS485 RCU host — 256-circuit RS485 host with centralized circuit dispatch. RS485/Modbus RTU or wireless Mesh; manages switch panels and guestroom scenes.
256-ch RS485 RCU host
256-ch RS485 RCU host — 256-circuit RS485 host with centralized circuit dispatch. RS485/Modbus RTU or wireless Mesh; manages switch panels and guestroom scenes.
- 256-circuit capacity selection
- new-build hotel centralized cabling
- multi-property chain replication
- high-circuit-count guest rooms and public areas
RS485 RCU guestroom control host centralized management of guestroom and public-area circuits
RS485 bus to terminal modules/panels
Topology star / bus · addresses plannable
Protocol Modbus RTU · BMS integration
Application upscale hotels · chains · high circuit count
- Circuit capacity
- 256-ch RS485 RCU host
- Bus
- RS485
- Capacity
- pertype No. 80～
- Topology
- star / bus · addresses plannable
- Protocol
- Modbus RTU · BMS integration
Specifications
| Parameter | Specification |
|---|---|
| Product name | 256-ch RS485 RCU host |
| Product series | RS485 busguestroom control host |
| Circuit capacity | RS485 RCU guestroom control host |
| Bus | 256-ch RS485 RCU host — 256-circuit RS485 host with centralized circuit dispatch. RS485/Modbus RTU or wireless Mesh; manages switch panels and guestroom scenes. |
| Topology | star / bus · addresses plannable |
| Capacity | pertype No. 80～ |
| Protocol | Modbus RTU · BMS integration |
| Communication protocol | Modbus RTU · BMS integration |
| Installation | low-voltage cabinet / equipment room / DIN rail(model-dependent) |
| Delivery | bulk project supply · detailed designschedule with construction drawingssync |
Wiring diagram
RS485 bus RCU host engineering wiring reference — bus cascading, terminal addressing, and BMS integration; refer to signed drawing set for terminal details.
Installation notes
- Bus address schedule must be planned with the circuit schedule during detailed design to avoid conflicts
- Long-distance buses require termination resistors and shield grounding per specification
- Wire per project drawing; signed projects use factory shipment drawings
- After power-on, commission with each slave station: Modbus communication and scene logic, item-by-item acceptance
Downloads
For full specifications, wiring topology, address planning, and certification documents, search the download center or contact sales for project-level BOM.
Product datasheet PDF includesRS485 busguestroom controlhostdimensions, electricalwith installation parameters wiring topology drawing set RS485 busguestroom control host · wiring topology reference Modbus address table bus slave station planning reference Contact for selection get address schedule template and project BOM
Companion hotel smart switch panels
RCU hosts coordinate guestroom loads with smart switch and scene panels on RS485 or wireless bus.
Recommended for you
requiresRS485 busguestroom control hostselection andbusplanning？ Contact our team for address schedule templates, bus topology, and chain replication solutions.
