190-02246-10 GI 275 Part 23 AML STC Installation Manual
Rev. 11 Page 3-9
Table 3-11 Circuit Breaker Labels - Independent Essential Busses
Notes:
[1] Label as “STBY ADI A” and “STBY ADI B” if the GI 275 is configured as a Standby ADI
and no MFD pages are configured.
[2] Label as “MFD/STBY ADI A” and “MFD/STBY ADI B” if the GI 275 is configured as an
MFD/Standby ADI and MFD pages are configured.
[3] It is not required to connect each GEA 110 to both essential busses (refer to Figure B-9). If
it is desired to connect each GEA 110 to only one essential bus, label similarly to GEA 24
in the above table.
[4] Not connected to essential busses. Refer to Table 3-8.
[5] It is acceptable to use a fuse in lieu of a circuit breaker for the GSB 15.
[6] If a GSB 15 Type-C unit (P/Ns 011-04937-20, -30, -40, -50) is installed in a 14V electrical
system, a 7.5A breaker or fuse is required.
Description
Label CB Value
Single LRU Dual LRU 14V / 28V System
GI 275 configured as Primary Attitude
only indicator (Basic)
ATT A
ATT B
ATT 1A
ATT 1B
ATT 2A
ATT 2B
5A
GI 275 configured as ADI
(3-in-1 or 4-in-1)
PFD A
PFD B
PFD 1A
PFD 1B
PFD 2A
PFD 2B
5A
GI 275 configured as MFD MFD [4]
MFD 1 [4]
MFD 2 [4]
5A
GI 275 configured as MFD/Standby ADI
STBY ADI A [1]
STBY ADI B [1]
5A
MFD/STBY ADI A [2]
MFD/STBY ADI B [2]
GI 275 configured as HSI HSI [4]
HSI 1 [4]
HSI 2 [4]
5A
GI 275 configured as HSI/Standby ADI
HSI/STBY ADI A
HSI/STBY ADI B
5A
GI 275 configured as EIS
EIS A
EIS B
EIS L A
EIS L B
EIS R A
EIS R B
5A
GEA 110
ENG SNSR A [3]
ENG SNSR B [3]
ENG SNSR L A
ENG SNSR L B
ENG SNSR R A
ENG SNSR R B
5A
GEA 24 ENG SNSR
ENG SNSR L
ENG SNSR R
5A
GSB 15 USB
USB 1
USB 2
5A or 7.5A [5] [6]
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