Wiegand Reader Interface
Direct interface to compatible Wiegand card readers for adding door access to your G-Series system.
Four Door States
Manages Locked, Unlocked, Secured and Fire Unlock states for flexible, code-compliant access control.
REX / REN Inputs
Request-to-Exit and Request-to-Enter inputs with a shunt-only option and supervised onboard points.
SDI2 & SDI Compatible
Supports the SDI2 bus and remains SDI compatible for easy integration on existing systems.
Which panels does the B901 work with?
It is a door controller module for Bosch G-Series panels, connecting via the SDI2 bus (SDI compatible).
How many doors does it control?
The B901 controls a single door with a Wiegand card reader interface. Add more B901 modules for additional doors.
What readers can I connect?
Any compatible Wiegand card reader connects directly to the B901 for card or token access.
Does it support exit requests?
Yes. It has Request-to-Exit and Request-to-Enter inputs, with a shunt-only option and supervised onboard points.
What door states does it handle?
Locked, Unlocked, Secured and Fire Unlock, including a buzzer output for door-held/forced alerts.
What's in the box?
The B901 door controller module PCB. A card reader, lock hardware and enclosure are supplied separately.
