Northern UTA220/UTA220k - Manual (Page 114)

13-4
UTA220/UTA220k
Softload
The password, stored in nonvolatile memory, consists of zero
to eight alphanumeric digits. Leading zeros are significant. The
password may also be disabled, preventing any softload
operations except inquiries.
By default, the softload password is set to null. It is
recommended that the softload password be changed when
initially configuring the unit in order to prevent accidental or
unauthorized softload attempts. The softload password
commands are listed in Table 13-4.
Request Softload Product Version Information: $Q
The $Q command returns the product code, the version number
of the active software, and the version number of the alternate
software. It can provide a positive verification of the success
of a softload operation, and indicates which software set is
currently active.
A typical response to the $Q command might be:
PRODUCT NUMBER: 4563672
ACTIVE SOFTWARE: 1D
ALTERNATE SOFTWARE: 1B
If the alternate software set contained any software versions
that were invalid, the word INVALID would appear instead of
a version code. A software set that is invalid cannot become
the active software set.
If the $Q command returns the ERROR message, the TA does
not support the optional softload feature.
Note: Before initiating softload, configure both the local DTE
host computer and the local TA for a hardware (out-of-band)
flow control method (e.g. RTS/CTS). Do not use software flow
control (XON/XOFF), since the softload software files contain
XON/XOFF characters that would be misinterpreted as flow
control characters.
Table 13-4: Softload Password Commands
Command Operation
%P1? Display softload password.
%P1 = x Set softload password to x, where x is 0-8 alphanumeric
digits.
%P1 = D Disable the softload function.