How to handle a 3500 42M failure?
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The 42M model has a total of 4 channels, and after evaluation it seems that channels 1 and 2 are the ones with problems. Diagnosis: Channels 1 and 2 are not working properly, while channels 3 and 4 are fine. How is such a fault typically handled? The Kangjisen engineer said hot plugging is not possible due to the risk of damaging the card components! I wonder if anyone has dealt with this kind of fault? ?
Measure the gap voltage, replace the 12 34 wires; hot plugging should be possible.
\"Not OK\" does not necessarily mean there is a problem with the 42M channel circuit; an issue with the external circuit can also cause \"Not OK\"
Swap the two good sets of wires to the not ok side. When the \"Not ok\" signal is not displayed, switching to a good channel shows it. Can’t this prove that the channel is broken either? ?
A \"not OK\" status does not necessarily indicate a hardware channel failure; it’s possible to use a good signal source to conduct tests. Even if there is indeed a channel failure, there are separate front and rear cards that need to be checked one by one. Additionally, the 3500 card modules can be hot-plugged without any issues. To determine the cause of the fault quickly, it’s possible to read the error codes via communication, and by referring to those codes, the corresponding issue can be identified and resolved swiftly.
Swap the two good sets of wires to the not ok side. When the \"Not ok\" signal is not displayed, switching to a good channel shows it. Can’t this prove that the channel is broken either? ? :)
In this case, the possibility of a fault is relatively high; however, it is still necessary to determine whether the issue lies with the front card or the back card. It would be helpful to be able to read the error code, or else the replacement method can be used to diagnose the problem. Additionally, if it is a newly installed card, it is necessary to check the signal acquisition configuration as well as the jumpers on the back card, as incorrect settings can also result in a NOT OK status.
Check the site and the wiring; it generally doesn’t break easily