User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-200 SDU and SCM
23-15-30 3-9
DATE TBD
• The A781-200 SDU must have successfully logged
on to a satellite
that is visible at
the test location within the last 168 hours (7 days).
• The aircraft has to be outside the hangar and far away from the hangars and towers
in orde
r to obtain good results.
• The aircraft must be facing due north in the northe
rn hemisphere, and due south in
the southern hemisphere.
C. PIM Test
To run the PIM test you must be in mainten
ance mod
e. You can only access the MCDU
maintenance menus when the plane is on the ground and classic services are logged off.
To start the PIM test:
1. In the MCDU CONFIG 1/4 menu, type the protection level cod
e in the scratchpad,
and press the button next PROT LEVEL CODE.
NOTE: Contact RCI product support for the PROT level code.
The SATCOM Maintenance Entry page appears.
2. To enter maintenance mode, press the button next to CONFIRM.
The MAINTENANCE MENU appears.
3. To start the PIM test, press the button next to INTER
MOD TEST.
The PIM test starts. The test ta
kes about five minutes.
D. PIM Test Results
(1) PIM Test Overall Status
At the end of the PIM test, the A781-200 SDU displays
the test results on the MCDU
screen.