-
code 2 : system keys (bits 12 to 22) : When the corresponding bit is at 1 on label 275 of the DMC - light comes on steady if the key is pressed or flashes if not pressed. Warning keys (bits 26 to 27) :

 1EFF : ALL 1 31-56-00Page 4 1 1 Feb 01/98 1 1 1CES 1 Whatever the status of the corresponding keys when the corresponding bit moves to 1, this causes these lights to come on steady.

 -code 3 : only bit 27 is taken into account to illuminate CLR.
 NOTE : - CLR and STS are always on steady
____ -In DMC MONO DISPLAY operation, several lights may be on at the same time.
 C. Power Supply (Ref. Fig. 003) The ECP is supplied by a 28VDC busbar. This is the essential DC busbar (401PP). The CPU power supply system is unaffected by electrical microcuts less than or equal to 10 ms. Beyond this duration, return to normal supply will cause re-initialization of the unit ; this will last for less than 100 ms.
 1EFF : ALL 1 31-56-00Page 5 1 1 Feb 01/98 1 1 1CES 1

 ECP - Power Supply
 Figure 003
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1  1  Feb 01/98
 1  1
 1CES  1

 3. ECP ARINC 429 Output Bus
________________________
 A. LABEL 270 - ECP Warning Switches
 -------------------------------------------------------------------------------| TITLE | BIT No. | VALUE | MEANING | |---------|---------|-------|-------------------------------------------------| | | 1 | 1 | | | | 2 | 0 | 270 : WARNING SWITCH POSITION | | | 3 | 1 | | | LABEL | 4 | 1 | 1) Switch pressed, bit 1 on the bus | | | 5 | 1 | | | | 6 | 0 | | | | 7 | 0 | | | | 8 | 0 | | |---------|---------|-------|-------------------------------------------------| | | 9 | | 0 ) | | SDI | 10 | | ) Channel 2 | | | | | 1 ) | |---------|---------|-------|-------------------------------------------------| | | 11 | | CLR 1 | | | 12 | | SPARE | | | 13 | | STS | | | 14 | | RCL | | | 15 | | SPARE | | | 16 | | CLR 2 | | | 17 | | EMERGENCY CANCEL | | | 18 | | TO CONFIG TEST | | | 19 | | ) | | DATA | 20 | | ) | | | 21 | | ) | | | 22 | | ) | | | 23 | | ) | | | 24 | | ) SPARE | | | 25 | | ) | | | 26 | | ) | | | 27 | | ) | | | 28 | | ) | | | 29 | | ) | |---------|---------|-------|-------------------------------------------------| | SSM | 30 | | 0 ) FW 0 ) FT 1 ) NCD 1 ) NORMAL | | | 31 | | 0 ) 1 ) 0 ) 1 ) | |---------|---------|-------|-------------------------------------------------| | PARITY | 32 | | | -------------------------------------------------------------------------------
1EFF : ALL 1 31-56-00Page 7 1 1 Feb 01/98 1 1 1CES 1 B. LABEL 271 - System Switches

 -------------------------------------------------------------------------------| TITLE | BIT No. | VALUE | MEANING | |---------|---------|-------|-------------------------------------------------| | | 1 | 1 | | | | 2 | 0 | 271 : SYSTEM SWITCH POSITION | | | 3 | 1 | | | LABEL | 4 | 1 | | | | 5 | 1 | | | | 6 | 0 | | | | 7 | 0 | | | | 8 | 1 | | |---------|---------|-------|-------------------------------------------------| | | 9 | | 0 ) | | SDI | 10 | | ) Channel 2 | | | | | 1 ) | |---------|---------|-------|-------------------------------------------------| | | 11 | | ENG | NOTE : | | | 12 | | BLEED | The corresponding bit is on | | | 13 | | APU | the bus as long as a key is | | | 14 | | HYD | pressed or for 8 transmis-| | | 15 | | ELEC | sion cycles. | | | 16 | | SPARE | | | | 17 | | COND | | | | 18 | | PRESS | | | | 19 | | FUEL | | | DATA | 20 | | FLT/CTL | | | | 21 | | DOOR | | | | 22 | | BRAKES | | | | 23 | | ALL | | | | 24 | | ) | | | | 25 | | ) | | | | 26 | | ) SPARE | | | | 27 | | ) | | | | 28 | | ) | | | | 29 | | ) | | |---------|---------|-------|------------------|------------------------------| | SSM | 30 | | 0 ) FW 0 ) FT 1 ) NCD 1 ) NORMAL | | | 31 | | 0 ) 1 ) 0 ) 1 ) | |---------|---------|-------|-------------------------------------------------| | PARITY | 32 | | | -------------------------------------------------------------------------------
1EFF : ALL 1 31-56-00Page 8 1 1 Feb 01/98 1 1 1CES 1 C. LABEL 272 - Light Status

 -------------------------------------------------------------------------------| TITLE | BIT No. | VALUE | MEANING | |---------|---------|-------|-------------------------------------------------| | | 1 | 1 | | | | 2 | 0 | 272 : LIGHT STATUS | | | 3 | 1 | | | LABEL | 4 | 1 | | | | 5 | 1 | | | | 6 | 0 | | | | 7 | 1 | | | | 8 | 0 | | |---------|---------|-------|-------------------------------------------------| | | 9 | | 0 ) | | SDI | 10 | | ) Channel 2 | | | | | 1 ) | |---------|---------|-------|-------------------------------------------------| | | 11 | | ENG | Bit 1 : light on | | | 12 | | BLEED | | | | 13 | | APU | | | | 14 | | HYD | | | | 15 | | ELEC | | | | 16 | | STATUS | | | | 17 | | COND | | | | 18 | | PRESS | | | | 19 | | FUEL | | | DATA | 20 | | FLT/CTL | | | | 21 | | DOOR | | | | 22 | | BRAKES | | | | 23 | | CLR1 | | | | 24 | | CLR2 | | | | 25 | | SPARE | | | | 26 | | L. TEST | | | | 27 | | DIM | | | | 28 | | SPARE | | | | 29 | | SPARE | | |---------|---------|-------|------------------|------------------------------| | SSM | 30 | | 0 ) FW 0 ) FT 1 ) NCD 1 ) NORMAL | | | 31 | | 0 ) 1 ) 0 ) 1 ) | |---------|---------|-------|-------------------------------------------------| | PARITY | 32 | | | -------------------------------------------------------------------------------
　
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