Salto Salto XS4 Controller (CU4200).
The CU4200 is the Salto XS4 Controller: it drives two readers and applies the access rules to release a door, strike, gate, or relay. It comes in an auxiliary version and an Ethernet version (CU42E0), with optional housing. It is the standard controller behind Salto wall and long-distance readers on the Space platform.
Where this model fits
- Driving wall and long-distance readers
- Elevator, gate, and turnstile control
- Standard two-reader access points on Salto Space
Parent product line
Salto XS4 Controller (CU4200) is a configuration of the Salto Controller product line. See the parent line page for the full credential stack, PMS integration list, and brand-standard notes that apply across every Salto Controller configuration.
How this model is configured
Every Salto lock is composed to your doors during scoping: finish, mortise and function type, credential technology (BLE, NFC, RFID, with mag-stripe or PIN fallback where needed), and handing. RevKey confirms each selection at the site survey and configures the final composed part number with you, so the lock that ships matches your door prep and brand standard.
Datasheets & documents
Where Salto XS4 Controller (CU4200) fits, and where it doesn’t
Best for
- Driving wall and long-distance readers (two readers per CU4200)
- Releasing elevators, gates, turnstiles, and amenity doors
- Growing control points with the I/O expansion or BLUEnet door controller
Not ideal for
- Self-contained electronic locks that need no separate controller
- Sizing by room count rather than by non-door access points
- Outdoor mounting without appropriate enclosure
Sourced from SALTO CU4000 Door Controller product page. Reviewed 2026-06-26 by RevKey.
Next step: scope a Salto XS4 Controller (CU4200) install
Tell us about your property and we will come back with a real scope for a Salto XS4 Controller (CU4200) install, including configuration selections, phasing, and brand-standard compliance review.