1616-920-03
8/28/2014
Rev: B
1
5
POST INSTALLATION TESTING
Follow the below check list for testing system after installation.
Step Procedure
Pass/Fai
l
1
Before applying power, inspect the system installed unit to ensure that
all units are properly installed.
NA
2
Apply power and ensure the circuit breaker is closed and power to the
system is available.
NA
3
Verify that the system transceiver is functioning according to the
applicable installation manual.
4
The MMU II display will show the software version in the MMU II and
the Message Set version. Then it will display MMU Starting. This is
done while the MMU II communicates with the transceiver. If this is
successful, the MMU II will display the tracker software version, and
the LBT software version. The MMU II will then display waiting
system registration. Once the system is registered, verify that 3 to 5
bars of signal are present on the display.
5
MMU II Test Procedures
6
NOTE: Following the MMU II Operator Guide as a reference
For steps 7 through 8 establish communication with the dispatch
center either through radio or cell phone connection as back up. Make
sure the audio panel is selected to the Satcom transmit select position.
7
Dial Test: Rotate the selector knob and select one of the
preprogrammed phone numbers on the MMU II and push the knob to
initiate the call. A ring should be audible in the headset. When
answered, verify that the connection is clear and free of interference.
Press the selector knob again to terminate the call.
8
Receive Call Test: Request the dispatch center to place a call to the
aircraft. Verify that the ring is heard. Answer the call by pressing the
selection knob. Verify that the connection is clear and free of
interference. Press the selector knob again to terminate the call.
