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3.4.4 Class 2 alarms
These are caused by hardware faults on the MPU5 board. Most alarms of this class are
generated during power up self-test.
When shown on the display these alarms range from 21 – 2F with Bacta code 42, 53 or 54.
3.4.5 Class 3 alarms
These are caused by faults on the MPU6 and relate to the flash memory.
When shown on the display these alarms range from 31 - 36 with Bacta code 51 or 52.
Bacta Code Barcrest Group
No.
Message
53 21 RAM TEST FAILED
54 22 BARBUS FAILED
54 22 CPU PIT FAILED
54 22 CPU UART FAILED
54 23 MPU6 UART FAULT
54 24 ASIC TEST FAILED
54 25 MSP430 FAILED
54 2A METER SENSE FAIL
54 2A LCD METER FAIL
54 2A LCD METER CHANGED
54 2B RTC FAILED
42 2C MPU6 BATTERY
54 2F USBDEV PORT FAIL
Bacta Code Barcrest Group
No.
Message
51 31 PROM CHECKSUM
51 32 PROM INTEGRITY NO DSP
51 32 PROM MISSING
51 33 MISSING APP PROM
51 34 PROMS MISPLACED
51 35 PROMS SWAPPED
52 36 NO ID CELL
52 36 BAD ID CELL
52 36 INVALID ID CELL
52 36 WRONG ID CELL
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