Switching an SPE amp off left the already-open connection reading as connected
(the amp stops answering once off, but the stale open handle kept the status at
"connected"), so the panel never showed OFF and PowerOn — which only wakes a
DISCONNECTED amp, and must NOT pulse RTS/DTR on a running one — did nothing
until the operator restarted OpsLog. PowerOff now drops the connection and marks
the amp offline, exactly as a fresh start would; the poll's plain reopen never
wakes a switched-off amp, so it stays off until the ON button's RTS/DTR edge.
rouggy
a20d9a0b76