This read-only enumerated value reports the transmit state of a channel on the internal CellBus side in the ingress direction, flagging whether the channel is transmitting normally or is instead sending an AIS (Alarm Indication Signal) or FERF (Far-End Receive Failure) condition inward toward the switch fabric. Admins use this to trace alarm propagation through the internal switching path, distinguishing internal cellbus-side signaling from the external line-side states. For example, a channel showing receivingAis here indicates the internal cellbus path is itself signaling an alarm condition toward the switching core, separate from what's happening on the physical line.