ah ... forgot to mention the software is v3.1 and the BL3500 has now gone back to Error 2, data pulled low. could it be a faulty PCB35 ?

Hi

If you can control your BS via your BV in option 2-0 it might be as below

Check your cabling, special if you have a splitterbox for connecting the BV and BS to one cable.

Then connect one working ML cable from your BS to BL and see if that works.

brgds/Fritz.

Thanks for your response,

Strangely enough the easiest way to check is the hardest for me. I use a LexCom Masterlink Module which means everything is wired in ethernet and I also use Lexcom cables that make the link from ethernet to MasterLink. I'l not sure I even have a ML cable.

This has been working for more than 10 years. So I guess the question is what would wear out first, the cables in the wall, something in the BL3500, the plugs, ... ?  Everything else stil works for other devices or has been changed.

Is there any way to find out more about what is happening on the ML network ?  What a mystery !

Thanks again,

- Scott

Hi Scott

First Download the Master Link Handbook on this site under section service manuals. When done go the fault finding section that starts on page 34 and onwards. Read what error 2 means, clearly described. 

You might need to get at ML Tester part no 8053404. By this one can test the entire cable system incl the Lexcom. The Lexcom system is described on page 28 and onwards in the ML handbook. You might get a ML tester . See the ML Handbook.

Brgds/Fritz

Thanks !  Will check it out.