Bosch B901 Door Control Module SDI2/SDI

Designed for reliable site-wide access management, the Bosch B901 Door Control Module is a compact door controller that brings supervised, addressable SDI2/SDI integration to Bosch-compatible control panels. Ideal for commercial buildings, education campuses and healthcare facilities, this module delivers robust access control with 14 programmable authority levels so you can manage users, groups, schedules and area-armed states from the panel. The B901 supports direct Wiegand card reader connectivity and runs on standard 12V DC power, reducing installation time and wiring complexity for security integrators. On-board supervised points and a buzzer output enhance monitoring and alerting for door states, tamper conditions and intrusion events—making it a dependable component for surveillance and security systems. Configurable Request-to-Exit and Request-to-Enter inputs offer flexible egress and entry control while ensuring compliance with emergency egress requirements when paired with mechanical releases. Add the Bosch B901 to your access control design to improve security, simplify maintenance, and strengthen monitoring—contact us to request a quote or technical integration support.

• Simplifies system integration: native SDI2/SDI addressable interface for fast connection to Bosch panels and streamlined access control deployment
• Flexible access management: 14 programmable authority levels let you enforce user-, group-, time- and area-based permissions for tighter security
• Install-friendly wiring: direct Wiegand reader support and 12V DC power reduce cabling complexity and speed up installations
• Enhanced monitoring & response: supervised on-board points and buzzer output provide reliable tamper, door state and event notification for surveillance and intrusion systems
• Controlled egress and entry: configurable Request-to-Exit/Request-to-Enter inputs with shunt options give precise control over door release behavior