The Acme Aerospace 312BS101-1 Dedicated Battery/Charger (DBC) is a line-replaceable unit that supplies primary and emergency power to Integrated Standby Flight Displays (ISFD) on Boeing 737, 747, 757, and 767 aircraft, with a three-year battery replacement interval.
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Overview
Acme Aerospace 312BS101-1 Dedicated Battery/Charger (DBC) is a dual-function unit that provides 28 VDC primary power from the aircraft bus to the Integrated Standby Flight Display and automatically transfers to its internal sealed lead-acid battery (part number 312BS101-1) to supply 24 VDC emergency power if the aircraft bus fails. The single LRU design simplifies installation and maintenance and is intended to provide continuous ISFD power with a typical three-year battery service interval.
Features & Benefits
Dual-function design: Provides both primary power path from the aircraft bus and secondary emergency power from an internal battery
Safety-critical power: Ensures ISFD availability during electrical emergencies
Long-term reliability: Designed for a three-year battery replacement interval to minimize maintenance
Automated power transfer: Seamless automatic switching from aircraft bus power to internal battery power upon failure
Fault indication: Includes a front-panel fault indicator light for detected faults
OEM approved: Supplied and distributed through official Boeing supply channels for compatibility
Specifications
Part Number: 312BS101-1
Manufacturer: Acme Aerospace
Product Type: Dedicated Battery/Charger (DBC)
Aircraft Application: Boeing 737, 747, 757, 767
Primary Power Input: 28 VDC from aircraft bus
Emergency Power Output: 24 VDC from internal sealed lead-acid battery
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DISCLAIMER: Product information provided “as is.” Boeing may add, change, discontinue or remove this information at any time. Product photos may not be exact match to product delivered. Seeterms & conditions.
