Switching from analog to serial with the 8816Hay gang! I am in the process of converting one of our TEOM 1400 unit sites into a serial connection from the old analog connection. Steve, I lost my notes on what I need to do inside the data logger. I remember you said there was a red button I needed to press to reset the thing and then log in to configure channels or something like that. Can you refresh my memory? Thanks in advance!