SALTO CU4EB8US Expansion Board, RS485 A

Add flexible, controller-managed relay outputs to your access and automation infrastructure with the SALTO Systems CU4EB8US expansion board. Designed as a purpose-built control panel expansion, this board delivers additional switchable relays for lift floor access, multi-shutter and barrier control, machine switching and other building automation tasks—reducing cabling complexity and speeding installation. The CU4EB8US works directly with SALTO CU42xx controllers and is managed by the main controller with software-configurable I/O, so integrators can tailor behavior without on-site rewiring. With RS485 (BUS485) connectivity and support for up to 16 connected expansion units, the board scales to meet large commercial or multi-site deployments while enabling ProAccess Space alarm event integration for enhanced security monitoring and surveillance response. Powered by an external adapter and engineered for reliable low-voltage operation, the CU4EB8US is ideal for access control, security and building management projects that demand robust I/O expansion. Add this SALTO expansion board to your next installation to simplify control workflows and improve system responsiveness.

• Expand relay control for lifts, barriers and shutters to streamline building access and automation
• Seamless integration with CU42xx controllers and ProAccess Space for centralized security monitoring
• Supports up to 16 expansion units to scale I/O capacity across large sites
• Controller-managed, software-configurable inputs/outputs for fast commissioning and remote configuration
• RS485 (BUS485) connectivity enables online event triggering and alarm integration for real-time surveillance
• Reliable operation with external power adapter for continuous, low-voltage system performance