Operation
5.8.6.16.3 Reset ACU to ROM Defaults
Executing the Reset ACU to ROM defaults function is the final step in 7200 ACU
production, after testing but before packaging.
WARNING
Executing this function resets all parameters to their ROM defaults,
erases all targets, and clears all stored steptrack data. The 7200
ACU will be unusable after executing this function until it has been
reconfigured. It should not be necessary to execute this function in
the field, and should only be used upon the advice of a General
Dynamics SATCOM Technologies engineer.
5.8.6.16.4 I/O Loopback Tests
The I/O loopback tests function is used to verify operation of the I/O board during
factory tests. The tests require the use of the 7200 Test Bed Unit (TBU), which is
only available at the factory; therefore this test cannot be performed outside of the
factory. The tests are left accessible in the ACU in order to test the I/O card along
with the CPU and its firmware in place.
5.8.6.16.5 Force Faults Clear
The normal method used to clear faults is to execute Clear/correct system faults
from the Main menu. Force faults clear forces all faults to clear if executing
Clear/correct system faults fails to clear all faults (this may occur during a firmware
upgrade).
5.8.6.16.6 Clear Message Buffer
This function clears all messages out of the message buffer. It only needs to be
used when the message log is invalid due to NVRAM corruption or initial factory
conditions.
5.8.6.17 Message Printer Options
An optional message printer may be attached to the system. When the printer is
enabled (by setting the Shell parameter under the Remote port configuration...
menu to Printer), messages are printed out as the status of the system changes.
The parameters under Message printer option... allow the user to selectively
include or exclude certain types of messages. The parameters are described in
Table 5-40.
5-82
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