(f)  
All analog discrete inputs are paralleled and thus both EICAS computers receive the same inputs.

 (10)
 EICAS Outputs (Fig. 12)

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SYSTEM INPUTS

EICAS COMPUTER
ALL LEVEL A MESSAGES AND SELECTED LEVEL B AND C MESSAGES LEVEL B AND C MESSAGES
EICAS Warning, Caution, and Advisory Analog Discretes Schematic (Typical)
Figure 10

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MAINTENANCE MANUAL

SYSTEM INPUT

EICAS Status and Maintenance Messages (Typical)
Figure 11

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MAINTENANCE MANUAL

LEFT EICAS
HARDWARE SOFTWARE
COMPUTER FAULT
CMPTR VALID
V0
LEFT

CAS INCREASEMONITORING
THRU 80 KT
ADC DATA
V1
J
DIGITALDECREASE
LEFT
V2
RAD ALT DATA

TEST IN
INPUTS THRU 75 KT SELT-TEST
PROGRESS
RAD ALT

SEI INHIBIT V3 > 400 FT
V0 V4
NOSE ON GROUND SYS 1
V1MCL
SEI
SYNC
NOSE ON GROUND SYS 2

ENABLE 20 SEC
V2
SEI INHIBIT
X
RIGHT
LANDING V3 R EICAS
MCL RESET MCL ADC
Y
F TO MCL
G
GEARTO MCL A
3
CMPTR VALID
MAIN GEAR ON
TAKEOFF
V4
ON
INPUTS (SHT 2)
GROUND SYS 1
(SHT 2)
MAIN GEAR ON

MESSAGEENGINEINHIBIT
GND
V0
AURAL
TO MCLF GROUND SYS 2 (NEW
LOGIC
AINHIBIT
SHUTDOWN
SYNC
V1  (SHT 2) RIGHTB
WARNING
5
CAUTION) AURAL
RAD ALT ANALOG
X
SYSTEM
L FUEL VALVE CUTOFF
FUEL
4
V2
SYSTEMTO

AURAL
Y WARNING SYS
INPUTSDIGITAL

R FUEL VALVE CUTOFF
V3
T/O THRUST
2
L T/R IN TRANSIT
LDG
T/O
V4 THRUST
L N1 > 66.5
INTERNALSA (SHT 2) GEARTHRUST
L T/R DEPLOYED
V0

SYNC
SAME ASINPUTS REVERSER
ENGINE
R T/R IN TRANSIT
RIGHT
INPUTS

X
R T/R DEPLOYED LOGIC

LIMITR N1 > 66.5
V1
EICAS
L
Y THRUST REV
NO ENGINE DATA DISPLAYED
V2
UPPER
FUEL SYSTEM INPUTS
UPPER DU OVHT STATUS
NC
DU
V3
MUX
THRUST
TO TOPB

DU BEAM TEST FAIL U.STROKE/
DRIVER
UPPER
REVERSER
　
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