So either the baud rate is wrong or you blew the card by accident.? That is if you did not change jumper settings ever.
There are other possibilities for the AA timeout, such as a failure of the 12VDC power via the cab bus cables to the PCP, or a locked-up NCE USB board (the Cab Bus LED will be stuck on).
The first test is to not touch any jumpers, but simply try the existing setup at both 9,600 and 19,200 baud. No matter what other JMRI or jumper setting, on or other (but never both) should respond with a Vx.x.x version number. That's a first goal before getting the correct final settings. If the "try both speeds" test fails, we need to look at hardware/driver/cable issues.
Note that you should completely reset the NCE USB (by unplugging/replugging both cables between the two speed tests.
Dave in Australia
