DPU/DO - Page 12 - REV. 5/25/00
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S P A C E S A V E R D I A G N O S T I C U N I T 3 . 6
S Y S T E M C O M M U N I C A T I O N F A I L E D !
- - S e l e c t . . .
< H E L P > f o r I n f o r m a t i o n
< T E S T > t o R e t r y
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-- Communication Fail Screen --
When this screen is displayed, it means that there is no communication possible with the module
the diagnostic unit is supposedly connected to. By pressing HELP, an information screen with
suggestions on how to proceed is displayed. After checking all the possible conditions that could
result in communication failure, the user must press TEST to attempt the initial communication
test again.
When communication in the module has been established with the diagnostic unit, there is a
chance that all carriage controls are not part of the communication circuit. In that case, the
screen shown below will be displayed. For example, if a communication line is removed and
replaced with an end-of-system jumper the unit remembers the total number of carriages and
realizes that only those up to the interruption point can be accessed.
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S P A C E S A V E R D I A G N O S T I C U N I T 3 . 6
* * * C O M M U N I C A T I O N T E R M I N A T E D * * *
C o n n e c t e d t o 3 U n i t ( s )
- - S e l e c t . . .
< H E L P > < D I A G N O S E > < T E S T >
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-- Communication Terminated Screen --
With this screen, the user is presented with three options. Pressing HELP displays a list of
suggestions to try that might be the solution to the terminated communication situation. After
checking out the displayed possibilities, returning to this screen and pressing TEST will re-run
the initial communication test in order to achieve complete communication. If the user wishes to
troubleshoot the portion of the system that is up and running while this screen is displayed,
pressing DIAGNOSE will send the user to the diagnostic section.
