GPIB-RS232 all lights yellow

[DarekB]

Dear Colleagues

I probably have a problem with my GPIB-RS232 converter. For some time all lights on its front panel  lit in yellow and I cannot communicate with my power supply. I tried to reset the converter but I do not see any reaction. After swiching off and on again all lights lit pernanently in yellow (see atached photos). How do you think, is the converter damaged?

[sullivan@aps.anl.gov]

I also have a unit (SN 1517A20) that has been in service for >5 years with this exact same problem.  

[DarekB]

It was informed, after about two months, by NI service in Hungary (the converter was send there from Poland for service) that the converter is definitely damaged (mainboard main chip).

As a result I decided to buy a new one. After mounting the new GPIB-RS232 in our EBIS system it was confirmed that the old one was the source of all our connection problems (first random and then permanent).

Best regards,

Darek