UPS Aviation Technologies 10 User Manual Download Page 6

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

User’s Guide

Page 2

1.2.1 Speaker 

Amplifier

The "S" in the push-button section stands for speaker. This switch will
place all selected audio on the cockpit speaker when this switch is
selected. NOTE: with the exception of unswitched unmuted inputs
(Altimeter warning), the speaker amplifier is not active in the "Split
Mode." To reduce power consumption and internal heat buildup in the
avionics stack, switch off the speaker amplifier when not in use.

1.3 

Mic Selector Switch (Fail Safe Operation)

Unit power is turned on and off by the Mic
selector switch. In the 

OFF

 or "

FAIL

-

SAFE

"

position, the pilot is connected directly to Com
1 allowing transmit and receive capability
regardless of unit condition. Any time power is
removed or turned 

OFF

, the audio selector will

be placed in the fail-safe mode. The first
position clockwise from O

FF

 is C

OM 

1. Both

pilot and copilot will be connected to the Com
l transceiver. While in the C

OM

 1 or C

OM

 2

mode, the intercom functions normally. Both
the pilot and copilot have transmit capabilities

on the selected transceiver. All hear the selected audio if the intercom is
in the A

LL

 mode. Only the person who presses their Push To Talk (PTT),

will be heard over the aircraft radio. Turning the rotary switch to the
C

OM

 2 position will place pilot and copilot on Com 2.

The SL10-Series has an automatic selector mode. Audio from the
selected transceiver is automatically heard in the headsets and speaker
(when selected). You can check this function by switching from C

OM

 1

to C

OM

 2 and watch the selected audio light on the selector change from

C1 to C2. This ensures the pilot will never transmit on a radio is not
listening to.
In SL10-series units, Serial Number 

T03092 and above

, when switching

the mic selector rotary switch from C

OM

 1 to C

OM

 2, while C

OM

 2 audio

had been selected, Com 1 audio will continue to be heard. This
eliminates the pilot having to switch Com 1 audio back on, if desired.
When switching from C

OM

 1 to C

OM

 2 while Com 2 has NOT been

selected, Com 1 audio will be switched off. In essence, switching the mic
selector will not effect the selection of Com audio.

Important

: When the mic selector is in the full counter clockwise

position, the SL10 power is removed, and it is in the 

FAIL

-

SAFE

 mode.

The pilot headset and microphone is connected directly to Com 1.

Figure 2

Mic Selector

Summary of Contents for 10

Page 1: ...Apolloâ Model SL10 Series Audio Selector Panel User s Guide December 2001 560 0973 00a ...

Page 2: ...e U S A UPS Aviation Technologies Inc 2345 Turner Road S E Salem OR 97302 U S A Toll Free 800 525 6726 Canada Toll Free 800 654 3415 International 503 391 3411 FAX 503 364 2138 Visit our web page at http www upsat com Send comments about this manual by email to techpubs at ups com History of Revisions Original Release December 2001 Rev 00 Ordering Information To receive additional copies of the Ap...

Page 3: ... Split Mode 3 1 5 Intercom 3 1 5 1 Volume Control Monaural SL10M SL10 3 1 5 2 Volume Control Stereo SL10S SL10MS 4 1 5 3 Adjusting the VOX Squelch control Monaural SL10 SL10M 4 1 5 4 Adjusting the VOX Squelch control Stereo SL10S SL10MS 5 1 5 5 Intercom Modes All versions 5 1 5 6 Push to talk intercom mode 7 1 6 Marker Beacon SL10M SL10M S 8 1 6 1 Middle Marker Sense 8 1 6 2 External Marker Lights...

Page 4: ...UPS Aviation Technologies SL10 Series Audio Selector Panel and Intercom System User s Guide ...

Page 5: ...n selected an internal backlight will illuminate indicating which audio source is selected Because the rotary switch controls what transceiver is being heard by the pilot and copilot the crew Cl Com 1 and C2 Com 2 push buttons are of the momentary type and do not remain in when selected This is also part of the auto function You will always hear the audio from the transceiver that is selected by t...

Page 6: ...ies on the selected transceiver All hear the selected audio if the intercom is in the ALL mode Only the person who presses their Push To Talk PTT will be heard over the aircraft radio Turning the rotary switch to the COM 2 position will place pilot and copilot on Com 2 The SL10 Series has an automatic selector mode Audio from the selected transceiver is automatically heard in the headsets and spea...

Page 7: ... may want to talk to Air Traffic Control while the copilot may be speaking to Flight Watch The Split Mode radio selection can be reversed by switching to COM 2 COM l The pilot will be on Com 2 and the copilot will be on Com 1 A third Split Mode selection is TEL COM l This will place the pilot on airborne radiotelephone HF or other transceiver if installed while the copilot will be on Com 1 Note In...

Page 8: ...adset 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 1 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 a...

Page 9: ... function is valid only when the unit is either in the COM 1 or COM 2 position of the Mic Selector switch When the unit is in the Split mode only the passengers have intercom function ISO 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 t...

Page 10: ...tor 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 spea...

Page 11: ...ell as communicate on the intercom Music and intercom is muted during intercom and radio communications Crew Pilot Copilot A C Radio Entertainm ent 1 Copilot Pilot A C Radio Entertainment 1 Passengers Entertainment 2 A second music source is automatically enabled for the passengers 1 5 6 Push to talk intercom mode SL10 series audio selector intercom systems with serial number beginning with the le...

Page 12: ...ated on the top of the unit See Section 2 5 A 3 position switch is used to set the receiver sensitivity and to test the indicator lamps Use HIGH sensitivity initially This allows you to hear the outer marker beacon about a mile out Then select the LOW sensitivity to give you a more accurate location of the Outer Marker The momentary down switch position is labeled TEST and illuminates all three la...

Page 13: ...O C35d sensitivity specifications the sensitivity of the receiver has been adjusted to meet real world requirements 150mV and 1400mV Soft This will usually eliminate the need for the avionics shop to reduce the sensitivity in the field so as to prevent early detection of the marker beacons If your particular installation requires more or less sensitivity please call the factory for details on how ...

Page 14: ...d to UPS Aviation Technologies or a certified UPS Aviation Technologies Service Center for repairs This warranty is not transferable Any implied warranties expire at the expiration date of this warranty UPS Aviation Technologies SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES This warranty does not cover a defect that has resulted from improper or unreasonable use or maintenance as det...

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Page 16: ...560 0973 00a December 2001 ...

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