Northern UTA220/UTA220k - Manual (Page 112)

13-2
UTA220/UTA220k
Softload
The TA software file contains an ASCII coded “header” which
can be displayed to verify the software's product and version
information before initiating the softload. On DOS based PCs,
this can be accomplished with the “TYPE” command. For
example, to view the header information of a file called TA.SL,
enter:
TYPE TA.SL
A typical header might look like this:
METHOD: SOFTLOAD YGMS-1
PRODUCT: ISDN TA
BOARD ID: 4563672
CPU ID: 0
VERSION: 1CPT-D
TA Power-Up Sequence
When the TA is powered up, it tries to execute the current
active set. The active set is stored in nonvolatile memory and
is determined by the last swap command.
However, if the active set indicated by the nonvolatile memory
selection is invalid, the TA will display a PROM ERROR
message on the LCD and then attempt to execute the alternate
set of software. This could occur if a softload session is aborted
or a hardware failure occurs.
If a SELECTED PROM INVALID message appears, the unit
will still operate, but possibly with an incorrect software set.
The error message will remain on the LCD for approximately
three seconds.
To clear the error, download the correct software, and then use
the swap command to activate it. If this does not resolve the
problem, the unit may require factory service.
If a FATAL ERROR occurs, the unit cannot operate and
must be serviced. PROM ERROR messages are shown in
Table 13-1.
Table 13-1: PROM Error Messages
LCD Message Description
SELECTED
PROM INVALID The selected PROM is invalid (blank or last softload session
failed). The TA is overriding the software selection and is
executing from the alternate software set.
FATAL ERROR
PROM INVALID The selected PROM is invalid, and the alternate software
set is also invalid. Normal operation is not possible.