This identifies the tone index for which a maximum allowed receive PSD ceiling is being specified, the receive-direction counterpart to cvdslMCMConfProfileMaxTxPSDTone, pairing with cvdslMCMConfProfileMaxRxPSDPSD. It defines a cap this line's transceiver should tolerate/expect on the receive side at a given frequency, relevant for compatibility checking against what a peer at the far end might actually transmit. This table matters most in mixed-vendor or regulated deployments where both ends need aligned expectations of maximum power at each frequency to avoid one end saturating the other's receiver.