User`s guide

3: Operation • 10
©2014 Axia Audio - Rev.1.3.8
port results in the Main GPO Pin 1 would engage which
is the “Mute Speaker” command. Through port routing,
the physical port would have the following pin-out on
the DA-15 connector:
PIN FUNCTION
Pin1 GPO 1 Listening Lamp
Pin2 GPO 2
Pin3 GPO 3 Ring Lamp
Pin4 GPO 4 Mic Mute Lamp
Pin5 GPO 5 Talking Lamp
Pin6 not used
Pin7 GND GPO common
Pin8 common Out 0v Source (GND)
Pin9 +5 volts +5v Source
Pin10 common In GPI common
Pin11 GPI 1 Mute Speaker command
Pin12 GPI 2 Busy (also mutes speaker)
Pin13 GPI 3
Pin14 GPI 4
Pin15 GPI 5
Physical GPIO port (w/port routing)
The desktop models do not have a GPIO port on the
rear, but with the use of GPIO port routing it is possible
to assign these functions to a GPIO port located any-
where within the network. This helps with keeping the
countertop cleaner with fewer cables. Conguration of
GPIO routing and more is covered in the next chapter.
Trigger Level
Each Intercom station is given a trigger level through
conguration which denes its importance. The trigger
value denes how station-to-station calling is managed.
Basically, higher valued stations can talk to any other
stations. Equal valued stations are allowed to talk freely.
Lower valued stations can call and an acknowledgment
by the receiving station is required prior to a talk session.
In cases where an acknowledgment is given, a 5 minute
window is opened between the two stations that allows
the lower triggered station continuous option to engage a
talk session without further acknowledgement from the
higher valued station.
When dening external sources which may interact
with a station, a trigger value can be dened to the exter-
nal source which permits the external source to interrupt
or require acknowledgment from the station.
Intercom stations can also be assigned a different
value of trigger based on the GPIO logic of “BUSY”.
This allows for creating equal trigger among all station
unless a station is Busy which does not allow stations to
interrupt.
Trigger value can also adjust volume presence in cas-
es where multiple stations call a single station. Higher
triggered stations will be given more presence as others
are dimed or muted.
Case Examples
In order to help understand the many ways that the
stations can be operated, the following section describes
some basic as well as some more imaginative means to
operate the Axia Intercom station.
Icom Station to Icom Station
The basic operation of an Axia Intercom stations is
fundamental and the use of the user interface so simple
that it is almost silly to mention it. By conguring each
station with a label name and selecting those names in
the key assignment interface, each station is now able
to talk and listen to each other. Don’t forget to include a
microphone!
Icom Station call to other device
Other intercom device is used in a broad sense and
the rules of engagement may vary. The assumption is
that GPIO triggering is the key to enabling communica-
tion. By dening an External Source with GPIO for Talk
and Listen dened, the Axia Intercom station user can
press the Talk button and a GPO trigger will be acti-
vated, which will enable a PTT button on a radio trans-
ceiver, trigger a third party intercom’s listen function, or
activate other logic circuits or Pathnder Stack Events to
trigger an event.
Likewise, external GPI trigger can enable an Axia
Intercom station’s listen function which allows for the
external device to send audio to the station.