We are using 9 contrologix chassis communicating on control net.We are facing a problem that when we open RSlinx or RSlogix 5k & go online some cards of two nodes show abnormal behaviour.The status of cards become Faluted & aftrer some time we get a message I/O not responding & after some time these cards become OK & I/O s also become Ok.we had run Rsnetworx agin but every thing seems to be fine in Rsnetworx(keeper is valid to all nodes).Is it possibe that controlnet cable has got damaged due to which this problem is coming?how we can verify that there is no problem with cable,any test? If cable had some problem is there any connector through which we can reconect this damage portion of cable