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
3-3
3.5.2.1 Mono headsets in Stereo Installation
All passenger headsets are connected in parallel. Therefore, if a monaural headset is plugged in to a SL10
Stereo installation, one channel will be shorted. Although no damage to the unit will occur, all passengers
will lose one channel.
3.5.3 Adjusting the VOX-Squelch control, Monaural (SL10, SL10M)
The SL10 provides adjustable VOX squelch controls for the pilot and copilot (the copilot's VOX control
also adjusts the passengers VOX squelch) Since the number of microphones open at any one time is
reduced, the amount of background noise is diminished. This also allows the use of dissimilar headsets with
the same intercom. The user can adjust the trip level of the VOX to fit the individual's voice and mic, which
helps eliminate the frustration of clipping the first syllables.
With the engine running, set the VOX control knob by slowly rotating the S
QL
control knob clockwise until
you no longer hear the engine noise in the headphones. When the microphone is positioned properly near
your lips, normal speech levels should open the channel. When you have stopped talking, there is a delay
of about ½ second before the channel closes. This helps prevent choppy communications.
3.5.4 Adjusting the VOX- Squelch control, Stereo (SL10S, SL10MS)
The stereo versions of the SL10 incorporate a single VOX Squelch control for all positions. Like all UPS
Aviation Technologies intercoms, since the number of microphones active at any one time is reduced, the
unwanted background noise in the headphones is diminished. This also allows the use of dissimilar
headsets with the same intercom.
With the engine running, set the VOX trip level by slowly rotating the S
QUELCH
control knob clockwise
until you no longer hear the engine noise in the headphones. When the microphone is positioned properly
near your lips, normal speech levels should open the channel. When you have stopped talking, there is a
delay of about ½ second before the channel closes. This prevents closure between words and prevents
choppy communications.
3.5.5 Intercom Modes (All versions)
The center switch is a 3-position mode switch that allows the pilot to tailor the intercom function to best
meet the situation. The description of the intercom mode function is valid only when the unit is either in the
C
OM
1 or C
OM
2 position of the Mic Selector switch. When the unit is in the "Split" mode, only the
passengers have intercom function.
I
SO
: (Up Position): The pilot is isolated from the intercom and is connected only to the aircraft radio. He
will hear the aircraft radio reception (and sidetone during radio transmissions). Copilot and passengers will
hear the intercom and music on Entertainment 1, but not the aircraft radio receptions or pilot transmissions.
A
LL
: (Middle Position): All parties will hear the aircraft radio, intercom, and music from entertainment
input #1. However, during any intercom communications, the music volume automatically decreases when
SoftMute is active (See section 3.6.5.1). The music volume increases gradually back to the original level
after communications have been completed.
C
REW
(Down Position): Pilot and copilot are connected on one intercom channel and have exclusive
access to the aircraft radios. They may also listen to Entertainment 1. Passengers can continue to
communicate with themselves without interrupting the Crew and also may listen to Entertainment 2.
Anytime the SL10 is in either the C
OM
1/C
OM
2, C
OM
2/C
OM
1, or T
EL
/C
OM
1, ("Split Mode") the pilot and
copilot do not have any intercom function. The passengers will maintain intercommunications.
3.5.5.1 Soft Mute (Mono)
Soft Mute must be enabled during installation by jumpering top connector pins 12 and N. A SPST switch
can be installed between these pins for a pilot selectable mute mode. Without this connection, music is not
muted during intercom activation. This “Karaoke Mode” prevents the music muting when a sing-along is
desired. "Soft Mute" mode only applies to entertainment input #1. Entertainment #2 does not mute.