**ON A/C 151-199, 201-210,
E. MCDU Operation The MCDU is operated via several keys (line select, mode, function). The acknowledgement of the user action is indicated on the screen.
(1)
Entering the AIDS mode (Ref. Fig. 014A) To initiate communication with AIDS via the MCDU, the operator activates the 'MCDU MENU' key. The MCDU will respond with the display of the 'MCDU MENU' page. This page indicates the selectable systems. If the operator activates the Line key adjacent to 'AIDS', the communication is broken with the currently active system and the AIDS initial menu appears.
(2)
MCDU Return Function (Ref. Fig. 015A) The DMU will issue a MCDU 'RETURN' when the '<' and the sign 'RETURN' are shown in line 13 and the key 6L is activated. This means that the display will change to the previous 'higher' menu level. The menus themselves are described in the following paragraphs.
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AIDS Main Menu
Figure 014
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R AIDS Main Menu Figure 014A
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MCDU Return Function (Example)
Figure 015
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R MCDU Return Function Figure 015A
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MCDU Display Print (Example)
Figure 016
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(3) MCDU Display Print (Ref. Fig. 016A) The DMU issues an MCDU display print when the sign 'PRINT' and the asterix are shown in line 13. It also needs 6R to be activated. The display content is printed in the same format as it is shown on the display when 6R on the MCDU is activated. If the necessity of the scroll function is indicated, which means that more information is available than shown on the display, the complete information is printed. Each of these print outs is transmitted with a header containing A/C identification, date, UTC, City pair and Flight number.
F. MCDU Controlled DMU Function
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R MCDU Display Print Figure 016A
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The AIDS main menu provides access to the following functions:
AIDS |- Parameter Label Call-Up |- Parameter Alpha Call-up |- DMU Programming
| |- Programming Menus
| |- DAR
| | |- Format
| | |- Speed Select
| | |- Documentation Format
| | |- Run/Stop Time
| | |- Start/Stop Logic
| | |- Buffer Size
| |
| |- Trigger Condition
| | |- Show Condition List
| | |- Create Condition
| |
| |- Print Report
| | |- Remote Print Button
| | |- Report Inhibit
| | |- Create Report
| | |- Individual Report Programming
| | | |- Header
| | | |- Counters
| | | |- Limits
| | | | |- Stall Table | | | | | | | |- ACARS Link | | | |- Start Logic | | | |- Report Increment | | | |- Inhibit | | | |- Discrete Trigger Inhibit | | | | | |- Report Rules | | |- EVMU | | |- Hex Switch | | | |- Flight Phase Logic Limits | | | |- Access Code | | | |- Call-Up | |- Filter Constants | |- Alpha Call-Ups | |- Parameter Call-Ups
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| |- LRU Assignments | |- Previous Reports |- Special Reports |- CPU 2
| |- Programming Menus
| |- Print Report
| | |- Report Rule
| |
| |- Limits
| |- A320
| |- A321
| |- A319
|
|- Manual Request Reports |- Stored Reports
G. User Access Levels All DMU functions, which can be manually activated by the user via the MCDU are protected by a user access control mechanism based on a password-mechanism. Users identify themselves to the DMU by entering a password in the AIDS DMU PROGRAMMING Menu. No password entry is required for enabling the 'Security User 1' functions. That means all functions available for 'Security User 1' are enabled automatically after power-up. No password entry is required for branching into sub-menus, printing the MCDU screen and entering report and DAR channel numbers for the purpose of menu selection.
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