Seven switches are provided on the front of the Model 4040 console and eleven switches on the Model 4080. The functions are a STANDBY switch, a MANUAL switch, a HOLD switch and the rest are the remote station switches. The STANDBY switch places the console in the standby mode where there is neither incoming nor outgoing communications. The remote call signal is still active in this mode. The MANUAL switch is a push to talk switch that allows the operator to override incoming noise or communications. The HOLD switch places the console in the standby mode and places a selected remote station on hold. The LED immediately above the remote station switch blinks indicating it is on hold.

The upper LED indicates system status. When an operator depresses a remote switch, both LED's illuminate on that operator's console. The upper LED will illuminate on the other consoles in the system. This tells other operators which remotes are busy. In addition, there is one LED above the STANDBY Switch that illuminates whenever the system is in standby and both the incoming and outgoing audio is switched off.

Each operator console is supplied with a 12 foot pre-fabricated cable assembly (PN 813-8011) for connection to the audio switcher requiring no field terminations. The operator console receives power from and communicates with the audio switcher. Field wiring to the remote stations is terminated at the audio switcher. The audio switcher can be mounted remote from the operator consoles.

A mute input is available on the audio switcher for each remote station for use in banking pneumatic tube applications. A remote contact closure input from the pneumatic tube system will temporarily mute the remote microphone for the period of time the contact closure is activated. This feature eliminates the pneumatic tube background noise from triggering the remote microphone and distracting the operator.