B520 | Bosch 12V Auxiliary Power Supply Module with SDI2 Bus Communication, 2A OutputDescription The Bosch B520 Auxiliary Power Supply Module is a 12V, 2A expansion module designed to enhance power capacity for Bosch control panels. It provides stable auxiliary power for connected devices and supervises up to two 12V batteries, ensuring reliable operation in both fire and intrusion applications. Built for industrial, commercial, and institutional systems, the B520 enables efficient power management with seamless SDI2 bus
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B520 | Bosch 12V Auxiliary Power Supply Module with SDI2 Bus Communication, 2A Output