R 1EFF : 001-049, 056-056, 058-058, 061-099, 1 31-64-00Page B21 1101-149, 151-199, 201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,

 H. Simplified symbols (Ref. Fig. 097) With this FMA option, some symbols of the PFD image are modified to reduce tracing time and thus enable a correct FMA display. When the programming pin MP-6C of the DMC is activated:
 -
the double graduations on the roll scale are replaced by single dashes

 -
the white mark for 45 deg. value on the roll scale is reduced by half of his lenght

 -
the mach number display has only two digits instead of three.

 **ON A/C ALL
 4. EIS Acquisition and Wiring
__________________________
 **ON A/C 051-099,
 (Ref. Fig. 098)

R **ON A/C 001-049, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. 099)
 **ON A/C ALL
 A. FMGC
 (Ref. Fig. A000)

 (1) FMGC - EIS (Flight Management part) The DMC uses a few data from the FMGC - EIS bus for display on the PFD
 **ON A/C 051-099,
 (Ref. Fig. A001)
R **ON A/C 001-049, 101-149, 151-199, 201-299, 301-399, 401-499,
 (Ref. Fig. A002)
 1EFF : ALL 1 31-64-00Page B22 1 1 Aug 01/05 1 1 1CES 1

 PFD - Simplified symbology
 Figure 097

R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 31-64-00Page B23 1201-299, 301-302, 1May 01/05 1 1 1CES 1

 INTENTIONALLY BLANK

 1 1

31-64-00Page B24
1 1 Feb 01/05 1 1 1CES 1R EIS Acquisitions R Figure 098

R 1EFF : 051-099, 1 31-64-00 Page B25/B26 1 1 May 01/05 1 1 1CES

 EIS Acquisitions
 Figure 099

R 1EFF : 001-049, 101-149, 151-199, 201-299, 1 31-64-00 Page B27/B28 1301-399, 401-499, 1Aug 01/05 1 1 1CES
1

R  EIS Acquisitions : FMGC Figure A000
 1EFF : 1 1 1CES  ALL  1 111 31-64-00 Page B29 May 01/05

 INTENTIONALLY BLANK

 1 1

31-64-00Page B30
1 1 May 01/05R 1 1
1CES 1R FMGCs EIS - DMCs Wiring Interface R Figure A001

R 1EFF : 051-099, 1 31-64-00 Page B31/B32 1 1 May 01/05 1 1 1CES

 FMGCs EIS - DMCs Wiring Interface
 Figure A002

R 1EFF : 001-049, 101-149, 151-199, 201-299, 1 31-64-00 Page B33/B34 1301-399, 401-499, 1Aug 01/05 1 1 1CES R **ON A/C ALL

 For a complete description of the FMGC - EIS bus switching refer 31-65-00
 (2) FMGC - A (guidance part) Each DMC receives and processes both FMGC 1 and 2 'A' buses, and uses them (either 1 or 2) independently for the display of the flight director orders and the flight mode annunciations, according to the engagement status of the FDs and the APs.
 (a) Display of the FD or FPD orders The DMCs working on side 1 use the FMGC 1-A bus for the display of the FD orders. If FD 1 fails, or if the FMGC 1-A bus is no longer valid, there is an automatic switching to the FD 2 and the DMC use the FMGC 2-A bus for the display of the FD orders.
 NOTE : FD orders means : FD bars (pitch, roll, yaw) or FPD orders
____ related to the Flight Path Vector in TRK/FPA mode.
 (b) Display of the Flight Mode Announcements Regarding the FMA, which displays the armed and active modes for the FD, the AP and the A/THR, the DMCs working on side 1 use:
 -
FMGC 1-A bus if no AP is engaged or if AP1 is engaged alone or if the 2 APs are engaged (DUAL).

 -
FMGC 2-A bus if AP2 is engaged.

 If the FMGC 1-A bus is no longer valid, the DMCs read the AP/FD engagement status from the FWCs:
 -
If there is no AP engaged, the FMA displays the flight mode annunciations from the FMGC 2-A bus (the CAPT PFD displays the FD 2 orders whatsoever).

 -
If the AP 1 is engaged (in this case, the non validity of the FMGC 1-A bus is due most likely to a disconnection of this bus from the DMC). The FMA is blanked.

 The same applies to the DMC working on side 2, replacing in the text FMGC 1 with 2 and vice versa.
 The table below summarizes the logic of the selection of FMGC 1 and 2 'A' buses.
 1EFF : ALL 1 31-64-00Page B35 1 1 May 01/05 1 1 1CES 1 ---------------------------------------------------------------------------| FMGC 1-A | FMGC 2-A |CAPT FMGC 1-A or FMGC 2-A|F/O FMGC 1-A or FMGC 2-A | | valid | valid |for FD| for FMA |for FD| for FMA | | | | |no AP|AP1|AP2|DUAL| |no AP|AP1|AP2|DUAL| |----------|----------|------------|---|---|----|------------|---|---|----| | N | N | Permanent checking through of the FMGC 1 and 2 | | | | 'A' buses until finding a valid one. |

 O | Y | N |  1 |  1  | 1 | / | /  |  1 | 1 | 1 | / | / | | | | | | | | | | | | | |
　
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