UPS Aviation Technologies Apollo SL10, Руководство по установке

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UPS Aviation Technologies
SL10 Series Audio Selector Panel and Intercom System
Installation Manual
3-4
3.5.5.2 Soft Mute (Stereo)
Both entertainment devices have the "Soft Mute" mode. In units earlier than a “G” intercom board serial
number (second set of numbers), only entertainment input #1 has the mute inhibit capability. "Soft Mute"
mode for the Crew positions (Entertainment 1) can be selected by pressing in the Volume control knob
once. In later units the SQL knob controls the Soft Mute of the passengers entertainment (#2).
3.5.5.3 Entertainment Input
The audio selector panel has provisions for up to two separate entertainment input devices. Which device is
heard is determined by the position of the three position mode switch located in the center of the intercom
section of the audio panel. (See Table 3-1 for overview.)
While in the ISO (Isolate) mode, only the copilot and the four passengers will hear entertainment device #1.
In normal operation, whenever a person speaks or if the aircraft radio becomes active, the music will
automatically mute and then will gradually return to the original listening level when the intercom or radio
activity ceases.
Which entertainment device will be heard is determined by the mode selector switch. When in the A
LL
mode, all parties will hear the entertainment input #1. While in the C
REW
mode, pilot and copilot will hear
entertainment input #1 while the passengers may listen to entertainment input #2.
It is also possible to use only one entertainment input device for both entertainment inputs. It is suggested
however, that a switch (DPDT) be installed between the single entertainment device and entertainment
input #1. This will allow the pilot and copilot decide if they hear entertainment while in the Crew mode.
Table 3-1 Intercom Modes
Mode Pilot Hears Copilot Hears Passenger Hears Comments
Isolate A/C Radio
Pilot Sidetone
(during radio
transmission) Copilot and passenger
intercom
Entertainment #1 Passenger and Copilot
intercom
Entertainment #1 This mode allows the
pilot to communicate
with the ground without
the copilot or passengers
bothered by the
conversations. Copilot
and passengers can
continue to communicate
and listen to music
All Pilot
Copilot
A/C Radio
Passengers
Entertainment #1 Copilot
Pilot
A/C Radio
Passengers
Entertainment #1 Passengers
Pilot
Copilot
A/C Radio
Entertainment #1 This mode allows all on
board to hear radio
reception as well as
communicate on the
intercom. Music and
intercom is muted during
intercom and radio
communications
Crew Pilot
Copilot
A/C Radio
Entertainment #1 Copilot
Pilot
A/C Radio
Entertainment #1 Passengers
Entertainment #2 A second music source
is automatically enabled
for the passengers.
3.5.6 Push to talk intercom mode
SL10-series audio selector/intercom systems with serial number beginning with the letter “M” (monaural
version) or “G” (stereo version).
In some extremely high noise environments, it may be desirable to have a push to talk (PTT) intercom,
instead of relying on voice-activation (VOX).
In SL10 series with later configuration boards, the PTT intercom capability is added. To operate the PTT,
simply rotate the SL10 squelch control to maximum (fully CW). Grounding the appropriate pin on the top
connector through a momentary switch will open only that intercom channel. The pilot and copilot are
individually. All passenger mics are controlled with pin 20.
The same pins are used for both mono and stereo SL10 Systems. This applies ONLY to units with
applicable serial numbers.