Master / Slave

This configuration maintains the Slave unit(s) in a default Talk mode for hands free operation and the Master in default Listen mode.  For the Master to talk to the Slave the operator depresses the Talk/Listen switch on the Master unit and talks into the speaker/microphone.  The Slave unit is automatically switched to a Listen mode.  When the switch is released on the Master, it returns to Listen mode and the Slave returns to Talk mode.

Master   Slave A  Slave B  Slave C
|____________________| _ _ _ _ _ _ _ _ _ _ _ _ | _ _ _ _ _ _ _ _ _ _ _|
 Basic system   Optional expanded system