Firecom 5000D Series Installation & Operation Manual page 22

AUX & CELL BUTTONS:
Green LED:
The Digital Intercom allows the user to select which Aux ports are enabled for audio input and output. Unlike radios,
multiple Aux ports can be selected at once. An Aux port that is selected will have audio heard by all users, and all audio
traffic present will be sent out that Aux channel. The Digital Intercom lights a green LED to indicate an active Aux port.
When an Aux port has too much traffic and is distracting, it can be deactivated by pressing and holding the Aux button
for 3 seconds. This will turn off the green LED indicating that no audio from that Aux Port will be heard by the users.
Blue LED:
The Digital Intercom monitors audio on all Aux channels, and lights a blue LED if audio is detected. The blue LED provides
indication that there is audio traffic on an aux port. This is useful when an Aux port has been deactivated. On
deactivated Aux ports, the blue LED will light, indicating that unheard audio traffic is occurring on that port.
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FIGURE 20: Radio Select Controls & Indicators