I have as stated a BPC 6-14184. I just completed a reconfiguration of my track layout. I turned on all the blocks that I redid, and they worked fine. Since the new configuration would allow me to run trains around my entire layout with minimal/no movement of switches for continuous running, I attempted to energize my complete set of Blocks for the continuous running. I attempted to turn on Block One and when the first Locomotive entered that block it died. I attempted to turn on the block again but no go. I went back to my control board and to my surprise when I addressed the BPC with "ACC 1 AUX1, 2", the green LED did not flash. I thought maybe, in my previous work I may have "Unprogrammed" that BPC. I tried to program it again by removing the shorting plug and set for two (2) TPC operation and then setting it for "BLOCK 1". Again, to my surprise neither command elicited the One Second LED Flash when completing with the "SET" button. I did notice when I turned my Control Board on, the Green LED did flash quickly. A quick look at the track and I noticed that I left a pair of Dikes on the track. These Dikes have insulated handles and the way they were positioned allowed me to believe that they would not have created a short but still with the BPC not "Functioning", I assumed it was time to hit E-bay for a replacement. I got two new, in the box, BPC's and installed one. I experienced the same set of conditions as with the original BPC. I got my meter out and it acts as a "Poorman's" Oscilloscope showing wave forms when connected to my Phone by Bluetooth. I connected my leads across the power input, and it registered the requisite Twelve (12) volts. I then connected the meter leads to the "DAT" and "COMM" wires (these for this reading were not connected to the BPC). I issued a command to the subject BPC, and I saw a blip on the phone screen. After all this explanation, does anyone know what voltage should be observed across the data lines when a command is executed? And does anyone see anything that would prevent both BPC's from correctly working based on my trouble shooting?
As you can see, it has been a great deal of time since I originally posted this issue. I got extremely frustrated with the issue and walked away from my layout concentrating on other endeavors. One night I was laying in bed reviewing the issue and determined that I never really checked continuity in the Command wire. The next day I did in fact check the continuity of both sides of the command wire. Everything proved to be nominal. I decided that it would not be a big effort to change out the command wire just as a precaution. I removed the wire from the problem BPC and went to the barrier strip that distributes the data to all of my different control boxes. The first lug took the requisite amount of tork to loosen. The second lug was extremely easy to loosen. Could it be I wondered? Tightening down both lugs securely and reattaching the data wire to the troublesome box, I issued a command. It worked. How long that one screw terminal had not been tightened down adequately is anyone's quess. And why it abruptly started failing after year(s) of service is an electrical mystery. So now all is well again on the Elmira Branch.
Moral of the story: Make sure all your connections are adequately torked. I went through all my barrier strips and double checked.