David
I find your question to be a bit confusing. Let me offer this as a possible answer to what I believe the question is. If I miss the mark then perhaps you can provide some clarification about the question.
First, I am not sure whether you are describing doing a write erase on devices and then connecting them to your 2509 or whether you are connecting them to the 2509, accessing them from the 2509 async ports, and then doing the write erase. So let me deal with both possibilities.
If you have done write erase before connecting the devices to the 2509 then you would have to manually start each connection from 2509 to device console and then would have access to build new configurations.
If you have connected the devices to the 2509 and started a session from the 2509 to the device console, then performed the write erase (and reload), then your console session would remain active when the device came back up and could then start building a new configuration. You would not need to restart the console connection and it would survive the write erase/reload.
HTH
Rick
HTH
Rick
