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 MCDU Access to COMM MENU page Figure 201A/TASK 46-21-00-991-008-A
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 COMM INIT and VHF3 SCAN MASK pages
 Figure 202/TASK 46-21-00-991-009

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ACTION RESULT -------------------------------------------------------------------------------
On the MCDU MENU page:
 - the ATSU prompt is shown.
 On the upper ECAM DU:
 - the ACARS STBY memo is shown.
 NOTE : This memo shows that the ATSU____
 router is not initialized.
 3. On the MCDU MENU page:  On the MCDU 1 (2 or 3):
 - push the line key adjacent to  - the ATSU DATALINK page comes into
 the ATSU indication.  view.
 4. On the ATSU DATALINK page:  On the MCDU 1 (2 or 3):
 - push the line key adjacent to  - the COMM MENU page comes into view.
 the (REQ) COMM indication.
 On the COMM MENU page:
 - the ENTER A/L IDENT message is shown
 in the scratchpad.
 5. On the COMM MENU page:  On the MCDU 1 (2 or 3):
 - push the line key adjacent to  - the COMM INIT page comes into view.
 the COMM INIT indication.
 On the COMM INIT page:
 - make sure that the Aircraft
 Registration Number is shown in the
 A/C REGISTR field.
 NOTE : This data comes from the CFDIU.____
 6. On the MCDU 1 (2 or 3):  On the COMM INIT page:
 - push the CLR mode key until the  - the scratchpad is empty and available
 last scratchpad message goes  for manual entry
 out of view
 7. On the COMM INIT page:  On the COMM INIT page:
 - enter the three-character code  - the three characters of the A/L IDENT
 of the A/L IDENT in the  code come into view in the scratchpad
 scratchpad

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ACTION RESULT -------------------------------------------------------------------------------
-push the line key adjacent to the A/L IDENT indication (4L).
8. On the COMM INIT page:
-enter the two-character code of the A/L IDENT in the scratchpad
-push the line key adjacent to the A/L IDENT indication (3L).
9. On the MCDU 1 (2 or 3):
-push the CLR mode key to clear the scratchpad message.
10. On the COMM INIT page:
-push the line key adjacent to the VHF3 SCAN MASK indication.
11. On the VHF3 SCAN MASK page:
-push the line key adjacent to the SCAN MASK *ERASE indication.
12. On the VHF3 SCAN MASK page:
-push successively the line keys adjacent to the Service Providers (SP) indications in the appropriate priority order.
13. On the VHF3 SCAN MASK page:
-push the line key adjacent to the SCAN MASK LOAD* indication.
-
the three characters of the A/L IDENTcode come into view in the related boxes.

On the COMM INIT page:

-
the two characters of the A/L IDENTcode come into view in the scratchpad

-
the two characters of the A/L IDENTcode come into view in the related boxes.

 -
the ENTER VHF3 SCAN MASK message comes into view in the scratchpad.

On the COMM INIT page:

-
the ENTER VHF3 SCAN MASK message goesout of view in the scratchpad.

On the MCDU 1 (2 or 3):

-
the VHF3 SCAN MASK page comes intoview.

On the VHF3 SCAN MASK page:

-
the star "*" adjacent to the ERASEindication goes out of view thencomes into view again.

 NOTE : This function erases the
____ selections that you made before.
On the VHF3 SCAN MASK page:
-make sure that the selected ServiceProviders are in cyan
-
the SELECT indication goes out ofview and the priority number ofselection #1 (thru #7) comes into view.

On the VHF3 SCAN MASK page:

-
the star "*" adjacent to the SCANMASK LOAD indication goes out of viewthen comes into view again.

 On the upper ECAM DU:
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ACTION RESULT -------------------------------------------------------------------------------
14. On the RMP1 (2 or 3):
　
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