Depending on having the Monitor functionality switched on in the Audio Selection Dialog the channel strip has a different outlay.

From bottom to top:

The Fader controls the channels level into the mix, it can also automatically switch the channel into an unmuted/ON state if the option “Fader start on -50 DB” is set.

Without Monitor
MUTE excludes this channel from the Mix.
SOLO excludes all other channels from the Mix hearing only this channel post Fader & Mute.

With Monitor
ON includes this channel in the Mix.
CUE is a pre-fader and pre-ON route to the Monitor Speakers for audible check of the Input Gain. The Mix is unaffected.
TB will switch the Monitors Talk Back Microphone to this channel and the channels input to the Monitor Speakers, excluding it from the mix. Making a private conversation probable.

Connect is a direct Luci Studio control, for Connecting the Instance to its incoming stream. Depending on the functionality of the Luci Studio Instance it will toggle between different states and control functions:

 

When Luci Studio is set to be a RTP server this button starts with Connect to set the server into “Waiting for input” state (Antenna button on Luci Studio). It then shows “Awaiting” and when an incoming stream is received it shows “On Hold” as long as the channel is muted. Unmuted it will show “On Air“, as this stream is now in the Mix. Pressing it in all these conditions, Luci Studio will disconnect.

When Luci Studio is set to connect to a RTP recipient this button starts with Connect to set the Luci Studio connect (Antenna button). It then shows “Awaiting” and pressing it will start the connection (Mic Button on Luci Studio). If an incoming stream is received it shows “On Hold” as long as the channel is muted. Unmuted it will show “On Air“, as this stream is now in the Mix. Pressing it in this condition, Luci Studio will disconnect (Both Antenna and Mic button).

When Luci Studio is set to connect to a SIP recipient this button starts with Connect to register Luci Studio (Antenna button). It then shows “Awaiting” and pressing it will make the sip call (Mic Button on Luci Studio). When an incoming call is alert, it shows “incoming“, pressing it will answer the call. If an incoming stream is received it shows “On Hold” as long as the channel is muted. Unmuted it will show “On Air“, as this stream is now in the Mix. Pressing it in this condition, Luci Studio will hangup and (Both Antenna and Mic button).

The Return knob will adjust the volume for the MIX-1 audio stream returned to the connected instance of this channel.

With the Gain knob you can set the input gain to an appropriate level around -8 dB on the VU level meter.

The VU level Meter shows the incoming audio level, pre-fader/on, post gain level.

Local channel strip

The Local channel strip appears when a Local audio input and output are chosen in the Audio Selection Dialog. It has the same layout as previously described, but without the CONNECT button, displaying instead the name of the corresponding Audio Input.