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Dear all,
I am facing one problem every time i download data in panel or shutdown and restart panel my amplifier modules stop working only RX light blink and rail module communication faults came on panel.
Some time it disapear after 24 hours but now its not going and voice msg not working.
I already check wirring and also download data for cpu and asu but faild
Please help

Rail module no's are 01100601,01110601,01120601, 01130601,01140601
FTCU installed on rail 2 with ASU .
Cab is 21 chase 3
Only 4 amplifier not working on same rail power supply working.
FTCU having problem? Or amplifier rail?
Can any one help for troubleshooting

Problem solved by removing power supply on same chaise and install again.
Whenever i powered off panel or download database apmlifier stop communicating and rail module fault appair.
But when i remove powersupply amplifier start working and power cercuit overloaded fault appair.
Now both cleared. Real Problem was in power supply but fault appair when remove powersupply and installed again.