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Chapter
2
Operation
MSF
5000
Instruction Manual
Station Diagnostics
Station Diagnostics
The system contains extensive diagnostic capabilities. The two basic
categories of
diagnostics
are the
Power-up/Reset Diagnostics and Continuous Diagnostics.
Power-Up/Reset Diagnostics
Upon station power-up
or reset,
a
variety of diagnostic
tests are performed to
verify
the
hardware is functional, and firmware and code
plug
devices
are
correctly programmed.
The hardware diagnostic
tests encompass both
digital
and
audio
tests.
These tests can detect a faulty device or group of components. In
some instances (i.e., the
ASICs),
the
faulty circuit within
a
component can be
identified.
The faulty components
are
indicated
to the user
via
the
Status display on
the
Control Tray and
the
Fail LEDs
on the
TTRC
and Secure Boards. There
are three
forms of power-up/reset diagnostic failure indications:
©
Flashing Control Tray
Status
Display Failure
Indication
©
Flashing
TTRC LED
or Secure
Fail
LED
Failure Indications
Control Tray Status Display Error Code Indication
Fiashing Control Tray Status Display Failure
Indication
The
entire
Status display may flash
8.8.8.
two or four times in
a sequence to
indicate
a
specific
error.
Refer
to
Appendix
B
-
Error Codes for
more information.
This
indicates the Status
display may
not be able to
display
normal error codes.
Flashing
TTRC LED
or
Secure Fail LED Failure
Indications
These
LEDs
may flash two,
four, or
six times
in
a
sequence to
indicate
a
specific
error.
Refer to
Appendix
B
-
Error Codes for
more information.
This
indicates the
TTRC
or Secure board has determined that it is unable to communicate to the
SSCB via
the
IPCB. Normally,
the remote modules pass self-diagnosed failures to
the
SSCB over
the
IPCB
so the
Control Tray can display
the appropriate error
codes on the
Status display.
2-18
68P81082E06
3/14/94
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