CDM404 allows to select one stereo balanced modulation out of four.

- Commutation is made by relays, which keep signal quality at its best, avoiding calibration, while allowing the commutation of very high amplitude signals.

- Selection is made via luminous push buttons on the front panel.

- In case of power failure or switch on process, Channel A is commuted.

- CDM404 is equipped with a stereo cue and monitoring section where the three input signals and the output can be mixed. This section includes a monitor output (line level), an headphone output and a bargraph which can be configured as a peakmeter or display RMS reading.

- Two dry loops are available for each commuted channel, allowing a subsequent routing of external remote controls. Possibility of expansion with the using of the FDI800. For instance:

• General "commercials" remote routed to "On Air" studio.
• Automatic management of the order indicators and the phones monitor to a studio "speak" used by several control rooms.

- The unit can be remotely controlled by switching on momentary or held button with the possibility to remote the indicators. A remote control interface with display is available (CDM404T).

USES:

• Commutation of several studios to "On Air" modulation.
• Selection of different modulations to a send output.
• Selection and routing of different modulations to a monitor return.
• Selection and routing of the headphones monitor modulation to a "speak" studio used by several control rooms.
• CDM404 can look after the local broadcasting in case of control room equipment needs servicing, as it allows a quick switching to satellite reception to any other emergency source. Therefore, the control room is completely isolated by simple automatic or manual commutation.