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HONEYWELL Aerospace Electronic Systems Page 56
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Nominal +27.5 Vdc
Minimum +20.5 Vdc
Maximum +32.2 Vdc
Nominal 50 Watts
Maximum 100 Watts
5.5.3 28 Vdc Backup Input Power Requirements
The MARK III does not require use of standby 28 Vdc Battery Backup Input Power.
5.5.4 Power Interrupt Requirements
The MARK III shall be capable of continuous operation through any power-off transient under 200
milliseconds. Non-volatile data shall be unaffected by Input Power Loss and does not depend upon a
standby 28 Vdc Battery Bus, if the aircraft is so equipped.