Radionics D7212B1 Panel Help

I still have lots of 6112's and a bunch of 4112's out there still chugging away. IMO the 6112 was a great panel.

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| > | > Thanks for the detailed information on the Datalock code. It will be | > | useful | > | > as I investigate the panel. I like these puzzels and I might end up | > with | > a | > | > good alarm system when I'm finish, all the better. | > | >

| > | > If I come to some useful results I'll surely inform you. | > | >

| > | > Bob | > | | > | Even if you get it to work it will never be a good alarm system | > | | > | | > | | >

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Just replaced a 4112 the other day... Go figure...

Cool. Let us know if you need help with zone response codes.

| > > I appreciate your concern over my abilities to work with electroincs. I | > can | > > assure that I am not in over my head. I bought the older version of the | > > board just because it has a socketed EPROM that I could extract the | code. | > My | > > intention is to use the Radionics code if I can. Otherwise I am fully | > > prepared, and capable, to write an entirely new program for this board. | > And | > > yes, I am that good. I currently have a good protion of the original | > > Radinonics code decomplied and I am using a logic analyzer to track the | > > operation of the microprocessor in areas where the code is not clear to | > me, | > > yet. I have the key circuits mapped out on the board and I am adding to | my | > > knowledge daily. For example, I already know how to unlock this panel by | > > running a program to change the password in RAM. May not be the best way | > to | > > do it, but it can be done. I can also monitor and inject communication | > > signals into the peripheral bus using my PC. | > >

| > > I expect your perspective is different from mine. For me, this is a fun | > > project to see how something works, down to the bits, bytes, volts and | > ohms. | > > If I get a useful alarm system at the end of it all, good for me. If I | > > don't, I learned one heck of a lot and my next design in my "real job" | may | > > be just that much better. As you suggest, if I ONLY wanted an alarm | > system, | > > this is NOT the way to go. I agree. Trouble is, I don't learn that much | by | > > signing a contract for an alarm system around the kitchen table. | >

| > Nobody says you have to sign a contract for an alarm system the problem | here | > is you have an ancient junk panel that in the end will still be worthless | no | > matter how much you work on it. My suggestion is to get a decent and | fairly | > new panel and work on that. Plenty of those on Ebay | >

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ok so they're old. never had any problems with them though - i still show

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| > | > | > Thanks for the detailed information on the Datalock code. It will | be | > | > | useful | > | > | > as I investigate the panel. I like these puzzels and I might end | up | > | > with | > | > a | > | > | > good alarm system when I'm finish, all the better. | > | > | >

| > | > | > If I come to some useful results I'll surely inform you. | > | > | >

| > | > | > Bob | > | > | | > | > | Even if you get it to work it will never be a good alarm system | > | > | | > | > | | > | > | | > | >

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Ugh!

Thanks to everyone on this thread for their help and kind encouragement. The panel is unlocked and ready for business. The D1255 keypads are responding to the panel and everything looks good.

Final update on the D7212B1 unlocking story.

It seems that Jim Rojas and I have a good way to unlock Radionics

To be clear, the method that we have, by design, prevents capturing the original datalock code and programming to avoid competitive problems that could arise otherwise.

Thanks again to everyone for their insights.

programming

prevention,