Catalogs & product literature
Installation & commissioning manuals
Solutions & system design
Frequently asked questions
Do I need to register or leave an email to download documents?
No. Every catalog, manual and solution guide on this page opens directly. There is no form, no email gate and no sales follow-up triggered by a download.
Which documents cover RS-485 and Modbus integration?
The RS-485 RCU Solution V2.3, the FCU Module Manual V2.2 and the Gateway Switch Manual V2.2 cover wiring and register-level integration for wired hotel room control.
Are these documents the current versions?
The list was checked on 2026-11-07. File names carry their version number (for example V2.2 or V3.1); if your project needs a newer revision, request confirmation before tender submission.
How do I verify an authorized HOTEKEY distributor?
Send the company name, country and certificate number to [email protected]. We confirm the authorization status, territory and validity period by reply; we do not publish partner data on this site.