C. Remote Print Button
(1)
Remote Print Button Function A remote print button function causes generation of specified print reports as a function of flight phase. The 'trigger' is reprogrammable via the GSE. The definition about which print report in which flight phase has to be generated, is defined in the respective report trigger logic.
(2)
Remote Print Button Installation The print button is installed on the pedestal assy on panel 112VU in the cockpit.
D. MCDU Functions and Rules
(Ref. Fig. 012)
Some of the AIDS functions are controlled by the MCDU.
The MCDU display has 14 lines, each line has 24 characters. Line 1 is
used as a title line or to show data to which the operator does not have
access. Line 14 is used as a scratchpad line for entering data into the
system.
Lines 2 through 13 are data lines arranged into six pairs (lines 2-3,
4-5, 6-7, 8-9, 10-11, 12-13). Each pair of lines has a label line and a
data line. The data lines are adjacent to the Line Select Keys (LSK), and
the label line is above the data line.
The line pairs are referenced by LSKs as shown below and in the menu
figures:
LSK CRT Lines
1L and 1R 2 and 3 2L and 2R 4 and 5 3L and 3R 6 and 7 4L and 4R 8 and 9 5L and 5R 10 and 11 6L and 6R 12 and 13
The LSKs allow entry of data into a field and access to a data or a function identified by that field.
(1) MCDU Keys The keyboard has the following alphanumeric keys: Activating an alphanumeric key (0 through 9, A through Z, ., +, -, . and / ) enters that character into the scratchpad of the MCDU.
R 1EFF : 106-149, 211-299, 301-399, 401-499, 1 31-36-00Page A12 1 1 Config-2 Aug 01/05 1 1 1CES 1
MCDU and MCDU Menu
Figure 012
R 1EFF : 106-149, 211-299, 301-399, 401-499, 1 31-36-00Page A13 1 1 Config-2 Aug 01/05 1 1 1CES 1 If you push the MCDU MENU the display shows the MCDU menu. The other mode keys are not used for AIDS.
Function keys
'NEXT PAGE' = shows the next page or to a option
'ARROW up' = scrolls the displayed page up
'ARROW down' = scrolls the displayed page down
'CLR' = clears the scratchpad and data
fields.
' . OVFY' = enters a . into the scratchpad (not used
for AIDS).
There are three annunciators on the MCDU front panel:
'MCDU MENU' : This annunciator illuminates white when a system
linked to the MCDU requests the display. 'FAIL' : Not used for AIDS 'FMGC' : Not used for AIDS
(2) General Display Rules No-valid and Missing Data For all display fields, only valid data is displayed. If the data is not valid or "xxxx", the display field shows dashes (---). When a new page is accessed, or data are entered, it may require the computer to perform calculations before all the data to be displayed are available. In these cases, the screen is cleared. Then the portion of the display that is available and can be displayed is presented to the operator immediately. However, the data fields that are not available would be left as dashes and filled in as the data become available.
Small and Large Front Panels The MCDU has two sizes of front panel. Generally all data on the data line are displayed on a large front panel. But data on the label line are displayed on a small front panel. However, the following are exceptions:
-Data with default values (or computer calculated values) which could be changed by the operator are displayed on a small front panel.
-If two data entries are dependent upon each other, the independent data (those defaulted to or latest input by the operator) are displayed on a large front panel and the dependent data are on a small front panel.
-For additional exceptions for AIDS which ensure more clarification in several menus.
R 1EFF : 106-149, 211-299, 301-399, 401-499, 1 31-36-00Page A14 1 1 Config-2 Aug 01/05 1 1 1CES 1
(3) MCDU Special Symbols There are special symbols on MCDU displays that indicate certain functions to the operator. Certain symbols show the operator what is available or if there is more information than is already displayed. The following symbols are used in the displays:
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320飞机维护手册 AMM 指示/记录系统 3(83)
