UPS Aviation Technologies SL10, M, S, MS Audio Selector Panel Installation Manual

The UPS Aviation Technologies SL10, SL10M, SL10S, SL10MS are state of the art audio isolation amplifiers and audio selectors that contain a voice activated (VOX) intercom system. These panels are designed for ease of use and installation, as well as to facilitate cockpit resource management and improve passenger entertainment. This manual provides detailed installation and operation instructions for the SL10-series of Audio Selector Panel/Intercom Systems. This includes the following units: SL10, SL10M, SL10S, SL10MS.

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Document

Apollo â

Model SL10 Series

Audio Selector Panel

Installation Manual

December 2001

560-0978-00

No part of this document may be reproduced in any form or by any means without the express written consent of UPS Aviation Technologies, Inc.

UPS Aviation Technologies, Inc., II Morrow, and Apollo are trademarks of UPS Aviation Technologies,

Inc.

Printed in the U.S.A.

UPS Aviation Technologies, Inc.

2345 Turner Road, S.E. Salem, OR 97302

U.S.A. Toll Free

Canada Toll Free

800.525.6726

800.654.3415

International

FAX

503.391.3411

503.364.2138

Visit our web page at http://www.upsat.com

Send comments about this manual by email to: [email protected]

History of Revisions

Original Release December 2001 Rev. 00

Ordering Information

To receive additional copies of the Apollo SL10 Installation Guide, order part #560-0978-00 and for the

Apollo SL10 User’s Guide, order part #560-0975-00a.

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Table of Contents

Section I GENERAL INFORMATION................................................................................................ 1-1

1.1

INTRODUCTION......................................................................................................................... 1-1

1.2

SCOPE .......................................................................................................................................... 1-1

1.3

EQUIPMENT DESCRIPTION..................................................................................................... 1-1

1.4

APPROVAL BASIS - FAA .......................................................................................................... 1-2

1.5

SPECIFICATIONS ....................................................................................................................... 1-2

1.6

EQUIPMENT SUPPLIED ............................................................................................................ 1-3

1.7

EQUIPMENT REQUIRED BUT NOT SUPPLIED..................................................................... 1-3

1.8

LICENSE REQUIREMENTS....................................................................................................... 1-3

Section II -Installation................................................................................................. 2-1

2.1

GENERAL INFORMATION ....................................................................................................... 2-1

2.1.1

SCOPE................................................................................................................................. 2-1

2.2

Unpacking and Preliminary Inspection ......................................................................................... 2-1

2.3

Equipment Installation Procedures................................................................................................ 2-1

2.3.1

Cooling Requirements ......................................................................................................... 2-1

2.3.2

Mounting Requirements ...................................................................................................... 2-1

2.3.3

Mounting Rack Installation ................................................................................................. 2-2

2.3.4

Connector Assembly............................................................................................................ 2-2

2.4

Cable Harness Wiring ................................................................................................................... 2-2

2.4.1

Noise.................................................................................................................................... 2-2

2.4.2

Entertainment Input ............................................................................................................. 2-3

2.4.3

External Push-to-Talk.......................................................................................................... 2-4

2.4.4

Transmit Interlock ............................................................................................................... 2-4

2.4.5

Power................................................................................................................................... 2-4

2.4.6

Existing KMA-24 Installation ............................................................................................. 2-4

2.4.7

"Swap" Mode....................................................................................................................... 2-4

2.4.8

Backlighting ........................................................................................................................ 2-4

2.4.9

Speaker Loads ..................................................................................................................... 2-5

2.4.10

PA Mute............................................................................................................................... 2-5

2.4.11

Middle Marker Sense........................................................................................................... 2-5

2.4.12

Unswitched Inputs ............................................................................................................... 2-5

2.4.13

Intercom............................................................................................................................... 2-5

2.5

Adjustments .................................................................................................................................. 2-5

2.6

Marker Antenna Installation.......................................................................................................... 2-6

2.7

Communications Antenna Installation Notes................................................................................ 2-6

2.8

Unit Installation............................................................................................................................. 2-6

2.9

Post Installation Checkout............................................................................................................. 2-7

2.9.1

Operational Checkout, SL10 ............................................................................................... 2-7

2.10

Final Inspection. ....................................................................................................................... 2-7

Section III OPERATION.................................................................................................................... 3-1

3.1

SCOPE .......................................................................................................................................... 3-1

3.2

Audio Selector (All models) ......................................................................................................... 3-1

3.2.1

Speaker Amplifier................................................................................................................ 3-1

3.3

Mic Selector Switch (Fail Safe Operation) ................................................................................... 3-1

3.3.1

Swap Mode (Switch from Com 1 to Com 2 remotely) ........................................................ 3-2

3.4

Split Mode..................................................................................................................................... 3-2

3.5

Intercom ........................................................................................................................................ 3-2

3.5.1

Volume Control, Monaural (SL10M SL10) ........................................................................ 3-2

3.5.2

Volume Control, Stereo, (SL10S, SL10MS) ....................................................................... 3-2

3.5.3

Adjusting the VOX-Squelch control, Monaural (SL10, SL10M)........................................ 3-3

3.5.4

Adjusting the VOX- Squelch control, Stereo (SL10S, SL10MS)........................................ 3-3

3.5.5

Intercom Modes (All versions)............................................................................................ 3-3

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

3.5.6

Push to talk intercom mode ................................................................................................. 3-4

3.6

Marker Beacon (SL10M, SL10M-S.............................................................................................. 3-5

3.6.1

Middle Marker Sense........................................................................................................... 3-5

3.6.2

External Marker Lights (SL10, SL10S)............................................................................... 3-5

3.6.3

Receiver Sensitivity............................................................................................................. 3-5

Section IV- Warranty and Service ...................................................................................................... 4-1

4.1

Warranty........................................................................................................................................ 4-1

4.2

Factory Service ............................................................................................................................. 4-1

Appendix A External PTT Hook Up.....................................................................................................A

Appendix B- Installation Drawing ......................................................................................................... B

Appendix D Top Connector wiring (Mono), SL10, SL10M..................................................................D

Appendix E Top Connector wiring, (Stereo) SL10S, SL10MS ............................................................. E

Appendix F -Instructions for Continuing Airworthiness and FAA Form 337 ................................... F

Appendix G RTCA DO160B Environmental Qualification Form .....................................................G

Table of Figures

Figure 1-1 SL10MS Stereo unit................................................................................................................... 1-1

Figure 2-1 Adjustments ............................................................................................................................... 2-6

Figure 3-1 Audio Selector ........................................................................................................................... 3-1

Figure 3-2 Mic Selector.............................................................................................................................. 3-1

Figure 3-3 Volume Controls Mono ............................................................................................................. 3-2

Figure 3-4 Volume Control Stereo .............................................................................................................. 3-2

Tables

Table 3-1 Intercom Modes .......................................................................................................................... 3-4

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Section I

GENERAL INFORMATION

1.1 INTRODUCTION

The SL10 family of Audio Selector Panels are revolutionary products. Never before has there been so much capability and utility in such a compact package. These units are designed for ease of use and installation, as well as to facilitate cockpit resource management and improve passenger entertainment.

Before installing and/or using this product, please read this manual completely. This will ensure that you will take full advantage of all the advanced features.

1.2 SCOPE

This manual provides detailed installation and operation instructions for the UPS Aviation Technologies

SL10-series of Audio Selector Panel/Intercom Systems. This includes the following units:

Model Description Part Number

SL10

SL10M

SL10S

SL10MS

Audio Selector Panel

Audio Selector Panel with Marker Receiver

Stereo Audio Selector Panel

Stereo Audio Panel with Marker

430-6060-10

430-6060-20

430-6060-30

430-6060-40

Where the functions are identical to all units, it will be referred to herein as a SL10. Otherwise, the applicable units will be specified.

The SL10-series is a state of the art audio isolation amplifier and audio selector that contains a voice activated (VOX) intercom system. It can switch up to three transceivers (Com 1, Com 2 and TEL) and six receivers (Nav 1, Nav 2, ADF, DME, MKR and AUX). In addition, there are two unswitched inputs, for telephone ringer and altimeter warning. Push buttons select the receiver audio source provided to the headphones. A SPR button allows the user to listen to the receiver(s) selected on the cabin speaker. Except for the unswitched inputs, all speaker audio is muted during transmit. A rotary switch selects one of the three transceivers for the pilot and copilot position in transmit. In "Split Mode" the SL10 has the ability to allow the pilot and copilot to operate different transmitters independently and simultaneously.

A fail-safe mode connects the pilot headphone and microphone to COM 1 if power is removed for any reason, or if the Mic Selector switch is turned to the Off position.

A six-station voice activated (VOX) intercom is included in the SL10. pilot isolate and crew modes, two mono (or stereo depending on unit) music inputs with "Soft Mute," and a 2-color Light Emitting Diode for power and transmit indications. Intercom control is through front panel mounted knobs. Monaural units have a dual concentric knobs that control pilot volume and intercom squelch, and copilot/passenger volume and squelch. In the stereo versions, there is a single volume and squelch control for all on board.

An optional 3-light Marker Beacon receiver is integral to the SL10M and SL10MS. This provides the necessary Marker Beacon light and audio indications necessary for an Instrument Landing System (ILS) approach.

Figure 1-1 SL10MS Stereo unit

1-1

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

1.4 APPROVAL BASIS - FAA

TSO Approval.

The SL10 and SL10S, Audio Selector Panels are FAA approved under TSO C50c (Audio Amplifiers).

The SL10M and SL10MS are FAA approved under TSO C50c and TSO C35d (Marker Beacon Receivers).

All systems comply with RTCA DO-143, DO-160b and DO-170.

Operation is subject to the following conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including interference that may cause undesired operation.

1.5 SPECIFICATIONS

GENERAL SPECIFICATION

Marker Beacon:

CHARACTERISTIC TSO COMPLIANCE:

C35d, Class A

Audio Selector/Intercom: C50c, Class A

APPLICABLE DOCUMENTS: RTCA DO-160b, RTCA DO-170 and RTCA DO-143

ENVIRONMENTAL Qualifications:

Temperature Range:

A1D1/CAMXXXXXXXBBBBAAX

Operating: -20°C to +55°C Storage: -40°C to +85°C

Altitude: Up to 50,000 feet in an non-pressurized area of the cockpit.

DIMENSIONS: Height: 1.3 in. (3.3 cm) Width: 6.25 in. (16.9 cm) Depth: 6.8 in. (17.3 cm)

WEIGHT (With Rack & Connectors) :

POWER REQUIREMENTS (Including Internal Lighting):

1.5 Lb. (0.68 kg.)

Voltage:

Maximum Current:

Typical operating current:

13.75 or 27.5 VDC*

1 Amp (Externally protected by a 2 Amp circuit breaker.) speaker off: speaker on:

350 mA

600 mA

NOTICE: To reduce the amount of heat dissipated in the audio selector panel, when used in a 28

Volt aircraft, the 15 W, 15 Watt dropping resistor (P/N 701-015-1501) must be installed in series with the power input.

Audio selector panel input impedance:

Input Isolation:

Speaker Muting:

510 W

-70 dB (min.)

-60 dB (min.)

Speaker Output (into 4 W):

Switched Receiver Inputs:

(Com 1, Com 2, Nav 1, Nav 2, ADF, DME, MKR, AUX)

Unswitched Inputs: 2

(TEL Ringer, Altimeter DH)

3 Watts (min.) with no clipping

Transmitter Selections: 5

(Com 1, Com 2, Com1/2, Com2/1, TEL/Com1)

Speaker Impedance:

Headphone Impedance:

Headphone Output:

4 W

150 - 1000 W

Microphone Impedance:

Intercom Positions:

Music Inputs:

45 mW each headset with no clipping

150 - 600 W

6 places

Music Muting: >50 dB "Soft Mute" when Com or intercom active.

Distortion: <1% THD

Mic Freq. Response, ±3 dB:

Music Freq. Response, ±3 dB:

@ 45 mW into 150 W

350 Hz - 6000 Hz

200 Hz - 15 kHz

MARKER BEACON RECEIVER: (SL10M, SL10MS, Only)

Frequency: 75 MHz Crystal Controlled

Sensitivity:

Low: 450 mVolts (Hard)

1-2

High:

Selectivity:

External Lamp Output:

MM Sense:

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Factory adjusted to 1400 mV (Soft)

160 mVolts (Hard)

Factory adjusted to 150 mV (Soft)

-6 dB at 110 kHz -40 dB at 120 kHz

9.0 (+/- 0.5) VDC Positive when active, max. current 125 mA

Active high (4.7 VDC +/- 0.5V) during Middle Marker acquisition, for autopilot use.

1 ea. of the following units:

Model

SL10

SL10S

SL10M

SL10MS

SL10 Installation Kit:

Part Number Description

Part Number

430-6060-10

430-6060-30

430-6060-20

430-6060-40

120-425-4402

120-425-4401

120-425-4400

425-001-0001

701-015-0015

200-066-0003

Top Connector, Stereo (key 4/5)

Top Connector, Mono (key 2/3)

Bottom Connector (key 7/8)

Gold Plated Crimp Pins

15 Watt Dropping Resistor

(Recommended for 28 Volt Systems)

Operator's and Installation Manual

Quantity

Stereo

1 x

1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED

Speaker, 4 W

B. Headphones, W stereo (SL10S) or mono (SL10MS), up to 6 as required

C. Microphones, up to 6 as required

D. Marker Antenna (75 MHz, VSWR <1:1.5, and appropriate for the airspeed)

E. Interconnect

Jacks (As Required)

G. Microphone Jacks (As Required)

H. Circuit Breaker: 1 ea. 2 amp.

Quantity

Mono x

None

1-3

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Section II -Installation

2.1.1 SCOPE

This section provides detailed installation and interconnect instructions for the UPS Aviation Technologies

SL10-Series Audio Selector Panel/Intercom System and SL10M-Series Audio Selector Panel/Intercom

System with internal Marker Beacon.

With the exception of the internal marker beacon receiver, the SL10, SL10S, SL10C and SL10SC are identical to the SL10M, SL10M-S, SL10M-C, SL10M-S-C. All units will be identified hereafter as the

SL10, where the information applies to all.

Please read this manual carefully before beginning any installation to prevent damage and post installation problems. Installation of this equipment requires special tools and knowledge. The equipment must be installed by an appropriately rated Certified Aircraft Repair Station, in accordance with applicable regulations.

NOTE: The SL10-Series-S requires specialized knowledge and tools for an effective installation. An appropriately rated Certified Aircraft Repair Station must install this equipment in accordance with applicable regulations. UPS Aviation Technologies, warranty is not valid unless the equipment is installed by an authorized UPS Aviation Technologies, dealer. Failure to follow any of the installation instructions, or installation by a non-certified individual or agency will void the warranty, and may result in an

unairworthy installation.

2.2 Unpacking and Preliminary Inspection

Use care when unpacking the equipment. Inspect the units and parts supplied for visible signs of shipping damage. Examine the unit for loose or broken buttons, bent knobs, etc. Verify the correct quantity of components supplied with the list in Section 1.6 (B). If any claim is to be made, save the shipping material and contact the freight carrier. Do NOT return units damaged in shipping to UPS Aviation Technologies. If the unit or accessories shows any sign of external shipping damage, contact UPS Aviation Technologies to arrange for a replacement. Under no circumstances attempt to install a damaged unit in an aircraft.

Equipment returned to UPS Aviation Technologies for any other reason should be shipped in the original

UPS Aviation Technologies packaging, or other UPS approved packaging.

2.3 Equipment Installation Procedures

Forced air cooling of the SL10 is not required. However the unit should be kept away from heat producing sources (i.e. defrost or heater ducts, dropping resistors, heat producing avionics) without adequate cooling air provided.

NOTICE: To reduce the amount of heat dissipated in the audio selector panel, when used in a 28

Volt aircraft, it is required that the 15 W, 15 Watt dropping resistor (p/n 701-015-1501) be installed in series with the power input.

If the SL10/M-S is installed in a 27.5 VDC aircraft system, a 15 W, 15 Watt dropping resistor (p/n 701-015-

1501) should be installed. Failure to do so will generate unnecessary heat inside the unit and may void UPS

Aviation Technologies's warranty.

The SL10 must be rigidly mounted to the instrument panel of the aircraft structure and within view and reach of the pilot position(s). Installation must comply with FAA Advisory Circular AC 43.13-2A. The unit may be mounted in any area where adequate clearance for the unit and associated wiring bundle exist.

NOTE: The mounting hole configuration for the SL10 is identical to the KMA-24 Audio Selector

Panel. See Appendix B

2-1

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

2.3.3.1 Monaural (SL10, SL10M)

Remove the unit from the mounting tray by first removing the copilot volume and squelch knobs (the knobs are press-fit on the shaft) and then unscrew the 3/32-inch hex-head screw that is to the right of the copilot control knob shaft. Carefully slide the unit free of the tray. Set the unit aside in a safe location until needed.

Install the tray using six FHP 6-32 x ½-inch screws. The audio selector panel must be supported at front and rear of the mounting tray.

2.3.3.2 Stereo (SL10S, SL10MS)

Remove the unit from the mounting tray by unscrewing the 3/32" hex-head screw that is to the right of the squelch knob shaft. It is not necessary to remove the squelch knob. Carefully slide the unit free of the tray.

Set the unit aside in a safe location until needed. Install the tray using six FHP 6-32 x ½" screws. The audio selector panel must be supported at front and rear of the mounting tray.

The unit connectors mate directly with the circuit boards in the SL10. The connectors are a Molex crimptype, and require the use of a Molex hand crimp tool, EDP P/N 11-01-0203, CR6115B (or equiv.). The connector is mounted to the unit tray with #4-40 screws, from the inside of the tray. Ensure that proper strain relief and chafing precautions are made during wiring and installation.

Referring to appropriate Appendix C, D, E and F, assemble a wiring harness as required for the installation.

All wires must be MIL-SPEC in accordance with current regulations. Two- and three-conductor with shield wire must be used where indicated, and be MIL-C-27500 or equivalent specification. Proper stripping, shielding and soldering technique must be used at all times. It is imperative that correct wire be used.

Refer to FAA Advisory Circular 43.13-2A for more information. Failure to use correct techniques may result in improper operation, electrical noise or unit failure. Damage caused by improper installation will void the UPS Aviation Technologies warranty.

2.4.1 Noise

Due to the variety and the high power of radio equipment often found in today's general aviation aircraft, there is a potential for both radiated and conducted noise interference.

The SL10 power supply is specifically designed to reduce conducted electrical noise on the aircraft power bus by at least 50dB. Although this is a large amount of attenuation, it may not eliminate all noise, particularly if the amplitude of noise is very high. There must be at least 13.0 VDC present at the bottom connector, pin 20, of the SL10 for the power supply to work in its designed regulation. Otherwise, it cannot adequately attenuate power line noise. Shielding can reduce or prevent radiated noise (i.e., beacon, electric gyros, switching power supplies, etc.) However, installation combinations can occur where interference is possible. The SL10s were designed in a RFI hardened chassis and have internal Electromagnetic

Interference (EMI) filters on all inputs and outputs.

Ground loop noise occurs when there are two or more ground paths for the same signal (i.e., airframe and ground return wire). Large cyclic loads such as strobes, inverters, etc., can inject noise signals onto the airframe that are detected by the audio system. Follow the wiring diagram very carefully to help ensure a minimum of ground loop potential. Use only Mil Spec shielded wires (MIL-C-275000, or better). Under no circumstances combine a microphone and headphone wiring into the same shielded bundle. Always use a

2- or 3-conductor, shield wire as shown on the installation wiring diagram.

Radiated signals can be a factor when low level microphone signals are "bundled" with current carrying power wires. Keep these cables physically separated. It is very important that you use insulated washers to isolate the ground return path from the airframe to all headphone and microphone jacks.

Adding a high-performance audio control system, particularly in conjunction with active noise canceling headsets, cannot improve on older avionics that were designed for cabin-speaker use. UPS Aviation

Technologies makes no claim that the audio panel will provide a noise-free audio quality under all installation conditions, particularly with older avionics.

2-2

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

2.4.2 Entertainment Input

2.4.2.1 Monaural (SL10, SL10M)

Two entertainment devices (CD player, cassette player, etc.) can be connected to the unit. Install two 1/8inch stereo jacks in a convenient location so that the pilot can plug in the entertainment devices into the system.

For a stereo input, we recommend tying the left and right channels (tip and ring) together, so both stereo channels are provided to the monaural audio panel, and the audio amplitude available to the audio panel is increased. Audio signal at the entertainment input must be a minimum of 500 mV P-P for optimum music performance. We have noticed that the portable devices using 4 batteries seem to work better than the 2cell types. Also we have found that some cigarette-lighter adapters introduce noise into the system due to the dropping power supply.

NOTE: The Soft Mute must be enabled in the SL10, SL10M either by connecting top connector pins N and 12 together in the harness, or through an external Soft Mute Enable switch.

2.4.2.2 Stereo (SL10S, SL10MS)

Two stereo entertainment devices (CD player, cassette player, etc.) can be connected to the unit. Install two

1/8-inch stereo jacks in a convenient location so that the pilot can plug in the entertainment devices into the system. The audio signal at the entertainment input must be a minimum of 500 mV P-P per channel for optimum music performance. We have noticed that the portable devices using 4 batteries seem to work better than the 2-cell types. Also we have found that some cigarette-lighter adapters introduce noise into the system due to the dropping power supply.

2.4.2.3 Soft Mute

The SL10-system incorporates a "Soft Mute" system. This will mute the entertainment devices during ICS or radio traffic. While in the ALL or ISO modes, entertainment #1 is heard by everyone (except by the pilot in ISO mode). While in the CREW mode, pilot and copilot will hear entertainment #1 while the passengers will hear entertainment #2.

Entertainment inputs #1 and #2 can be paralleled so a single entertainment source can serve both the passengers and the crew in "crew" mode. 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 to decide if they hear entertainment while in the Crew mode.

Local oscillators and internal signals from some entertainment equipment can cause undesired interference with other aircraft systems. Before takeoff, operate the entertainment devices to determine if there is any adverse effect within the aircraft systems. If any unusual operation is noted in flight, immediately switch off the entertainment devices.

NOTE: Use the low level output of any entertainment device to connect to the audio panel. Maximum signal level is 2 VAC p-p. DO NOT use a speaker-level output, this will cause internal damage in the audio panel.

To use a line level, install an AudioLink PowerLink 101PL2 adapter, available from Crutchfield at 1-800-955-3000

(804)-817-1000, [email protected]

2.4.2.4 Soft Mute (Stereo only)

Entertainment #1 input has a "Soft Mute" inhibit switch that is part of the volume control located on the front panel. By pressing it once, the entertainment device will not be muted, push it again and it will be muted by intercom and radio conversation.

On SL10 stereo units with serial numbers above “G” series on the intercom board (second set of serial numbers) have an Entertainment #2 Karoake mode capability. This "Soft Mute" inhibit switch is part of the squelch control located on the front panel. By pressing it once, the entertainment device will not be muted, push it again and it will be muted by intercom and radio conversation.

2-3

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

An important part of the installation is the PTT (Push-To-Talk) switches that allow the use of your aircraft communications radio for transmissions. There are three typical configurations that can be used. Select the case that best fits the installation. Only the person who presses their PTT switch will be heard over the radio. If the pilot and copilot both use the PTT, the copilot position has access to the radio. The pilot position will have PTT control regardless of the copilot when the SL10 is in the F AIL SAFE mode.

CASE I: PTT is built into both pilot and copilot yokes.

CASE II: PTT is in pilot yoke only. This configuration requires a modified external PTT switch plugged into the copilot's microphone jack. (See Appendix A). When the copilot's PTT is pressed, the intercom switches the mic audio from pilot to copilot mic.

CASE III: No built in PTT. This requires two built in PTTs to be installed, or modified external PTT switches to be used. Modify external PTT as required (See Appendix A).

Some communications transceivers use a transmit interlock system. In order to fully utilize the Split Mode feature, this function must be disabled. Consult that manufacturer's installation manual.

2.4.5 Power

The SL10-Series are compatible with both 13.8 and 28 Volt DC systems. A two (2) Amp circuit breaker is required. Power and ground wires must be a twisted #18 AWG pair.

Included with this product is a power dropping resistor to be connected in series with the power input, bottom connector, pin 20. This dropping resistor is supplied for 28 volt systems so that unnecessary heat dissipation inside the SL10 can be avoided.

NOTICE: To reduce the amount of heat dissipated in the audio selector panel, when used in a 28

Volt aircraft, a 15 W, 15 Watt dropping resistor (p/n 701-015-1501) must be installed in series with the power input.

2.4.6 Existing KMA-24 Installation

If the installation replaces a KMA-24 (series -01, -02 or -03), the existing 44 pin connector can be used for the bottom connector of the SL10 tray as it is, if it is properly installed and wired. A dropping resistor must be in series with the power in a 28V KMA 24 installation. No other changes are required except for external marker lights (see Section 3.7.2 for details). The "key" in the existing connector must be located between pins 7 and 8. This connector will be used in the bottom connector position. (See appropriate

Appendix for complete wiring harness details.)

When a normally-open, momentary, push-button switch is connected between pin 10 on the top connector and aircraft ground, the user can switch between Com 1 and 2 by depressing this switch without having to turn the mic selector switch. This yoke mounted switch eliminates the need of removing your hands from the yoke to change transceivers.

NOTICE: Some older model radios may cause the Swap mode to activate on the release of the

PTT switch, due to the excessive back EMF from the collapsing relay coil field. Verify that back

EMF suppression, in the form of a diode across the T/R relay coil, is present if un-commanded

Swap occurs.

2.4.8 Backlighting

The SL10 has an automatic back-lighting system controlled by a photodetector. Additional control can be gained by the aircraft avionics dimmer control. Connect the dimmer control line to bottom connector pin D for 14 volt systems, and to bottom connector pin F for 28 volt systems. Pin E is light ground. This installation provides the ability to bring the back-lighting level to zero. If dimmer control is not used, a constant low level back light illumination has been established for night-time viewing. The photocell

2-4

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual located at the lower right hand side of the unit face will automatically adjust the backlight of the pushbutton lamps as well as the rotary mic selector switch light intensity.

Certain VHF Nav/Comms, such as King KX170-series have internal speaker amplifiers. These are not used with a SL10, but must be loaded to prevent unit failure. Connect the speaker output from the Nav/Com to the appropriate load on the SL10 (bottom connector 19 and L for COM 1, etc).

2.4.10 PA Mute

Bottom connector pin 18 is a TTL logic output that is pulled low during PTT operation. This serves as an input to external public address system to prevent feedback during transmissions.

2.4.11 Middle Marker Sense

The MM Sense output is connected to specific autopilots, and goes high only when a middle marker signal is received, not in test.

2.4.12 Unswitched Inputs

The SL10 has two unswitched inputs. Bottom connector pin 17 is unswitched, but muted by transmissions.

This signal can be used for less critical inputs such as airborne telephone ringer.

Bottom connector pin T is an unswitched and unmuted audio input. This audio is always presented to the headphones and speaker, regardless of the audio panel audio selections. This input can be use for critical warnings, such as radio altimeter warnings.

2.4.13 Intercom

The top connector is for the intercom function. All mic and headphone jacks must have insulating washers, the cable must be Teflon coated, twisted-shielded wire, and the shield must only be connected to the ground return wire only at the intercom connector. NOTE: This harness can be custom made by UPS Aviation

Technologies, Inc. Simply call the factory and obtain a wire harness work-sheet. The harness will be made to your specifications and fully functionally tested. All hardware is included. (See Appendix C (mono) and

E (stereo) for intercom connection configurations).

SL10-series units with intercom board (second series of numbers on data plate) serial number above a “G” series in stereo, or “MO series in mono, include a push-to-talk intercom capability.

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).

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 controlled (Top connector, pins 22 and 21, respectively). 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. If a unit with serial number below that indicated is installed in a position wired for the PTT, no damage will occur, only the ICS PTT function will not function.

2.5 Adjustments

The SL10 is factory adjusted to accommodate the typical requirements for most aircraft configurations.

There are three adjustments however, that will allow the installer to tailor the specific functions. The numbers correspond to identification numbers stamped on some trays.

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SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Adjustment Clockwise Results In

Cabin Speaker Level Increase Speaker Volume

Marker Beacon Level Decrease Marker Volume

MKR Gain Increase overall sensitivity

MKR High Sense Increase sensitivity

MKR Low Sense Increase Sensitivity

Pass. Headphone (Mono or L & R) Louder

To make the necessary adjustments, use a small jeweler's slotted screwdriver.

MKR Audio Level

(233)

MKR Hi Sense

(211)

Figure 2-1 Adjustments

Cabin Speaker

Level (111)

Pass

Volume

Level

Mono

L (123)

R (113)

MKR Lo Sense

(231)

MKR Gain

(223)

2.6 Marker Antenna Installation

Refer to aircraft and antenna manufacturer's installation instructions, as well as AC43.13-2A (or later revision),

Chapter 3, for information on proper antenna installation techniques. The marker beacon antenna must be mounted on the bottom of the aircraft.

2.7 Communications Antenna Installation Notes

For best results while in Split Mode, it is suggested that the one VHF communications antenna be located on top of the aircraft while the other communications antenna be on the bottom. Any antenna relocation must be accomplished in accordance with AC 43.13-2A, aircraft manufacturers’ recommendations and

FAA-approved technical data.

Warning: It is probable that radio interference will occur in the split mode when the frequencies of the two aircraft radios are adjacent, and/or the antennas are physically close together. UPS

Aviation Technologies makes no expressed or implied warranties regarding the suitability of the

SL10 in Split Mode.

2.8.1.1 Monaural (SL 10, SL10M)

To install the monaural SL10, remove the copilot volume and squelch knob. Gently slide the unit into the mounting rack until the hold-down screw is engaged. While applying gentle pressure to the face of the unit, tighten the 3/32" hex-head screw next to the copilot control shaft until the unit is secure. DO NOT OVER

TIGHTEN. Reinstall the knobs removed in step 2.3.3.1.

2.8.1.2 Stereo (SL10S, SL10MS)

To install the stereo SL10S, gently slide the unit into the mounting rack until the hold-down screw is engaged. While applying gentle pressure to the face of the unit, tighten the 3/32" hex-head screw next to the squelch control shaft until the unit is secure. DO NOT OVER TIGHTEN.

Warning: Do not over-tighten the lock down screw while installing the unit in tray.

Internal damage will result.

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2.9 Post Installation Checkout

After wiring is complete, verify power is ONLY on pin 20 of the bottom connector, and airframe ground on bottom connector pin Z. Failure to do so will cause serious internal damage and void UPS Aviation

Technologies's warranty.

2.9.1 Operational Checkout, SL10

1. Apply power to the aircraft and avionics.

2. Plug headsets into the pilot, copilot and passenger positions.

3. With avionics on, and the audio panel off, verify that the pilot can transmit and receive on COM 1, through the headset, indicating proper “fail-safe” operation. On stereo units, the audio is present in the right ear only.

4. Rotate the Mic Selector Switch to the Com 1 position.

5. Verify that the C1 light comes on. Verify that the power LED (Light Emitting Diode) in the intercom section illuminates green. If the LED is red, stop testing and troubleshoot the microphone PTT installation.

6. Verify proper transmit and receive operation on the copilot position, noting that the copilot PTT switch allows proper transmission on the selected transceiver.

7. Verify that pushing the C2 button causes the button to illuminate, and the Com 2 receiver to be heard.

Verify operation on Com 1 from the pilot position.

8. Repeat for Com 2 and TEL, (if installed).

9. Rotate the mic selector switch to the C OM 1/2 position. Verify that the pilot communicates on Com 1 and the copilot on Com 2.

10. Rotate the mic selector switch to the C OM 2/1 position. Verify that the pilot communicates on Com 2 and the copilot on Com 1.

11. Rotate the mic selector switch to the TEL / COM 1 position. Verify that the pilot communicates on the transceiver in the T EL position and the copilot on Com 1.

12. Verify proper operation of all receiver sources by selecting them using the keypad. Note that the button for the receiver sources stays in, and the button illuminates to show which source is in use.

13. Push in the S (SPR) button. Verify that all selected audio is heard in the cockpit speaker. Verify that the audio mutes when the mic is keyed.

14. Verify that the LED in the intercom is illuminated when a microphone is keyed. NOTE: LED does not change color in "Split Mode".

15. Verify proper Intercom system operation in the A LL , I SO And C REW modes.

16. Verify that the audio selector panel system does not adversely affect any other aircraft system by systematically switching the unit on and off, while monitoring the other avionics and electrical equipment on the aircraft.

2.9.1.1 Marker Checkout, SL10M, SL10MS Only

1. Connect a ramp generator at the antenna end of the marker coax. With the unit under test in HI sensitivity, verify that a 150 mVolts, modulated 95% with 1300 Hz signal will illuminate the amber

(M) marker light, and that marker audio is present in the headphones when the Marker Audio (M) push-button has been depressed. Select "S" for speaker to verify marker audio availability on the cabin speaker. Verify that the white (A) and blue (O) lights will illuminate within ± 3dB of the amber lamp, with 3000 HZ and 400 Hz applied, respectively.

2. Repeat with the unit in LOW sensitivity, with 1400 mVolts applied.

3. Connect the marker antenna and verify proper operation.

Verify that the wiring is bundled away from all controls and no part of the installation interferes with aircraft control operation. Move all controls through their full range while examining the installation to see that no mechanical interference exists. Verify that the cables are secured to the aircraft structure in accordance with good practices, with adequate strain relief. Ensure that there are no kinks or sharp bends in the cables and coaxial cables. Verify that the cables are not exposed to any sharp edges or rough surfaces, and that all contact points are protected from abrasion. Complete log book entry, FAA Form 337, weight

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SL10 Series Audio Selector Panel and Intercom System

Installation Manual and balance computation and other documentation as required. Return completed warranty registration application to UPS Aviation Technologies.

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Section III OPERATION

GENERAL INFORMATION

3.1 SCOPE

This section provides detailed operating instructions for the UPS Aviation Technologies SL10, SL10S,

SL10M, SL10M-S, SL10C, SL10S-C, SL10M-C, and SL10M-S-C Audio Selector Panel/Intercom

Systems. Please read it carefully before using the equipment so that you can take full advantage of its capabilities.

This section is divided into four sections covering the basic operating areas of the SL10 systems. They are:

Audio Selector, Transceiver Selection, Intercom, and Marker Beacon Receiver (SL10M and SL10MS only).

3.2 Audio Selector (All models)

Through the use of two momentary and seven latched, push-button, back-lit switches, it is possible to select any or all receiver audio. C1 and C2 are momentary switches.

When 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

Figure 3-1 Audio Selector selected by the rotary mic selector switch.

The users can identify which receivers are selected by noting which push-button switches are illuminated. Push buttons labeled Nl (Nav 1), N2 (Nav 2), D (DME), M (Marker),

A (ADF), AX (auxiliary), and S (Speaker) are "latched" type switches. When one of these buttons is pressed, it will stay in the "in" position. Press the switch again and it be in the "out" position and remove that receiver from the audio. While selected, the switch will also be annunciated by an internal lamp.

NOTE: In Split Mode, no pushbuttons will be active. The only audio selected is the com 1 and 2, as indicated by their respective lamps.

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.

3.3 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 Figure 3-2

Mic Selector 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.

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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.

3.3.1 Swap Mode (Switch from Com 1 to Com 2 remotely)

With a yoke mounted, momentary switch, the pilot can change from the current Com transceiver to the other by depressing this switch. When "Swap Mode" is active, an LED annunciator will illuminate, indicating that the Mic Selector switch position is no longer valid. To cancel "Swap Mode," the pilot may either press the yoke mounted switch again, or turn the Mic Selector Switch to the Com that is active.

Turning the rotary switch to C OM 1/C OM 2 places the SL10 into "Split Mode". This places the pilot on Com

1 and the copilot on Com 2. Pilot and copilot are isolated from each other on the intercom, but can use their respective radios simultaneously. An example of this useful feature is when the pilot 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 C OM 2/C OM l. The pilot will be on Com 2 and the copilot will be on Com 1. A third "Split Mode" selection is T EL /C OM 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 all SL10s, Split Mode turns off all other (Nav, ADF, etc.)selected audio to pilot and copilot. Additionally, there is no intercom function between pilot and copilot. Passengers still have intercom capability among themselves.

3.5 Intercom

3.5.1 Volume Control, Monaural (SL10M SL10)

The pilot volume control knob adjusts the loudness of intercom and music in the pilot’s headphones only. It has no effect on selected radio audio levels. The copilot volume control adjusts the loudness of the intercom and music in the copilot headset only. The passenger volume is factory set at a comfortable level. This is a service adjustment that can be accessed by the avionics technician.

Most general aviation headsets have a built-in volume control, so volume can be adjusted “locally.”

Figure 3-3 Volume Controls

Figure 3-4 Volume Control Stereo

3.5.2 Volume Control, Stereo, (SL10S, SL10MS)

The volume control knob adjusts the loudness of the intercom and music for the pilot and copilot only. It has no effect on selected radio levels or passengers' level. The passenger volume level is factory set for a comfortable listening level. Most general aviation headsets today have a built-in volume controls, therefore, volume can be adjusted at the headset. There is a service adjustment that can be accessed by the avionics technician. This will allow adjustment of the passenger's volume for a comfortable listening level.

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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.

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SL10 Series Audio Selector Panel and Intercom System

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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

Isolate

All

Crew

Pilot Hears

A/C Radio

Pilot Sidetone

(during radio transmission)

Pilot

Copilot

A/C Radio

Passengers

Entertainment #1

Pilot

Copilot

A/C Radio

Entertainment #1

Copilot Hears

Copilot and passenger intercom

Entertainment #1

Copilot

Pilot

A/C Radio

Passengers

Entertainment #1

Copilot

Pilot

A/C Radio

Entertainment #1

Passenger Hears

Passenger and Copilot intercom

Entertainment #1

Passengers

Pilot

Copilot

A/C Radio

Entertainment #1

Passengers

Entertainment #2

Comments

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

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

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.

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3.6 Marker Beacon (SL10M, SL10M-S

The optional Marker Beacon Receiver uses visual and audio indicators to alert you when the aircraft passes over a 75 MHz transmitter.

The Blue lamp, labeled "O," is the Outer Marker lamp and has an associated 400 Hertz 'dash' tone. The lamp and tone will be keyed at a rate of two tones/flashes per second when the aircraft is in the range of the

Outer Marker Beacon.

The Amber lamp, labeled "M," is the Middle Marker lamp and is coupled with a 1300 Hertz tone. It is keyed alternately with short 'dot' and long 'dash' bursts at 95 combinations per minute.

The White lamp, labeled "A," is the Airway/Inner marker and has a 3000 Hertz 'dot' tone. The lamp and tone will be keyed at a rate of six times per second.

The audio from the Marker Beacon Receiver can be heard by selecting the "M" push-button switch. To adjust the volume level, there is a service adjustment located 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 "H IGH " sensitivity initially. This allows you to hear the outer marker beacon about a mile out. Then select the

“L OW ” sensitivity to give you a more accurate location of the Outer Marker. The momentary down switch position is labeled "T EST " and illuminates all three lamps simultaneously to assure the lamps are in working order.

Upon first application of power to the unit, the Marker enters a self test mode. The flickering blue marker light indicates a test in process. If the test continues for more than 10 seconds, or the lamps do not extinguish, return the unit for service.

3.6.1 Middle Marker Sense

A Middle Marker sense output signal is available to automatically reduce the autopilot sensitivity after the aircraft has passed over the Middle Marker. This function will not operate during the test mode. This output will go to +4.75 VDC ( ± 0.25 VDC) when a valid Middle Marker signal is received.

3.6.2 External Marker Lights (SL10, SL10S)

For installations that require external marker beacon lights, there are three outputs that can drive 12 Volt lamps only. The external output lamps are driven high (+9 VDC ±0.5 VDC) when active. Maximum source current per lamp is 125 mA.

If using an external marker receiver, the audio input is lower connector, pin 11 (Aux. input).

Although the SL10M meets FAA TSO-C35d sensitivity specifications, the sensitivity of the receiver has been adjusted to meet real world requirements (150 mV 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 to adjust the receiver sensitivity in the field.

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Section IV- Warranty and Service

4.1 Warranty

In order for the factory warranty to be valid, the installations in a certified aircraft must be accomplished by an FAA-certified avionics shop and authorized UPS Aviation Technologies dealer. If the unit is being installed by a non-certified individual in an experimental aircraft, a factory-made harness must be used for the warranty to be valid. This harness may be purchased directly from PS Engineering (865-988-9800).

UPS Aviation Technologies. warrants this product to be free from defect in material and workmanship for a period of 26-months from the date of installation as recorded in aircraft logbook and/or on FAA Form 337.

UPS Aviation Technologies, Inc. warrants this product to be free from defect in material and workmanship for a period of 26-months from the date of installation. During this 26-month warranty period, UPS

Aviation Technologies, Inc. at its option, will send a replacement unit at our expense if the unit should display any unusual behavior.

All transportation charges for returning the defective units are the responsibility of the purchaser. All domestic transportation charges for returning the exchange or repaired unit to the purchaser will be borne by UPS Aviation Technologies, Inc. The risk of loss or damage to the product is borne by the party making the shipment, unless the purchaser requests a specific method of shipment. In this case, the purchaser assumes the risk of loss. 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 handling, storage or preservation, or unreasonable use or maintenance as determined by us. This warranty is void if there is any attempt to dissemble this product without factory authorization. This warranty gives you specific legal rights, and you may also have other rights, which may vary from state to state. Some states do not allow the exclusion of limitation of incidental or consequential damages, so the above limitation or exclusions may not apply to you.

All items repaired or replaced under this warranty are warranted for the remainder of the original warranty period. UPS Aviation Technologies, Inc. reserves the rights to make modifications or improvements to the product without obligation to perform like modifications or improvements to previously manufactured products.

The unit is covered by a 26-month limited warranty. See warranty information. Call UPS Aviation

Technologies, Inc. at (800) 525-6726 before you return the unit. This will allow the service technician to provide any other suggestions for identifying the problem and recommend possible solutions.

After discussing the problem with the technician and you obtain a Return Authorization Number, ship the product to:

UPS Aviation Technologies, Inc.

2345 Turner Road, S.E.

Salem, OR 97302

U.S.A. Toll Free 800.525.6726

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Installation Manual

Appendix A

External PTT Hook Up

Part of the installation includes the installation of PTT (Push To Talk) switches that allow the use of your aircraft radio for communications transmissions.

There are three configurations that can be used, you must select the case that best fits your installation.

NOTE: Only the person who presses their PTT switch will be heard over the radio.

CASE I

The PTT is built into the pilot and copilot yokes

Simply install the plugs from the headset into the aircraft headphone jacks. Then use the yoke mounted

PTT to transmit. No other action is required.

CASE II

Built in PTT only on the pilot side only

This configuration requires a modified external PTT switch plugged into the copilot's mic jack. (See Details

Below) When the copilot's PTT is depressed, this activates an internal relay that switches the mic audio to the aircraft radio from the pilot to the copilot.

Case III

No built in PTT switch at all.

Two built-in PTT must be installed, or two external, modified PTT switches will be required for both the pilot and copilot. Modifications to the PTT are required. (See details below)

Push To Talk Modifications

When received from the manufacturer, an after-market PTT switch opens the mic audio path to the "ring" connection of the PTT mic plug until the button is pressed. When the PTT is between the intercom and the headset, the intercom function will not work unless the PTT switch is depressed. A simple modification can be performed to allow proper intercom operation. NOTE: This mod does not alter normal operation.

Below are some examples of typical modifications. Contact UPS Aviation Technologies or the PTT manufacturer for more details if necessary.

Procedures For David Clark PTT

1. Unscrew the round black plastic cover from the jack.

2. Connect the joined black wires to the red wire.

3. Replace the round black plastic cover.

Procedures for Telex PT-200

1. Unscrew the round black plastic cover from the jack.

2. Cut the red wire in the middle of the wire.

3. Strip both ends of the insulation.

4. Solder the two ends to the ground lug to the PTT jack.

5. Replace the round black plastic cover.

Procedures for Telex PT-300

1. Unscrew the round black plastic cover from the plug jack.

2. Remove the heat shrink material from the joined black wires.

3. Solder these two wires to the lug that has a white wire already soldered to it.

4. Replace the round black plastic cover

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Appendix B- Installation Drawing

Cutout size for front mount installation

6.31in (160.3 mm)

6.65 in (167 mm)

Side View

0.60 in (15.25 mm)

0.35 in

(8.9 mm)

3.00 in (76.2 mm)

5.25 in

(133.4 mm)

6.28 in

(159.5 mm)

Rear View

1.62 in

(41.15 mm)

1.31 in

(33.27 mm)

0.8 in

(20.3 mm)

Weight: 1.5 lb with tray and connectors ( .68 kg)

Connector viewed from the rear

Z Y X W V U T S R P N M L K J H F E D C B A

J2 (top)

22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

Z Y X W V U T S R P N M L K J H F E D C B A

J1 (bottom)

22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Appendix C Bottom Connector wiring, Mono and Stereo (see note 9)

BOTTOM CONNECTOR

Com 1 Audio Hi

Communications

Transceiver #1

Com 1 Lo

Com 1 Mic Audio Hi

Com 1 Mic Key

Com 1 SPR Load

Communications

Transceiver #2

Com 2 SPR Load

Communications

Transceiver #3

(HF/TEL)

Com 1 Spr Load

See Notes 6, 8

Com 2 Audio Hi

Com 2 Lo

Com 2 Mic Audio Hi

Com 2 Mic Key

Com 2 Spr Load

Com 3 Audio Hi

Com 3 Lo

Com 3 Mic Audio Hi

Com 3 Mic Key

Com 3 SPR Load

VHF Nav 1

VHF Nav 2

ADF Receiver

Com 3/HF Spr Load

Nav 1 Audio Hi

NAV 1 Audio Lo

Nav 2 Audio Hi

Nav 2 Audio Lo

ADF Audio Hi

ADF Audio Lo

Notes:

1. All shields should be grounded at audio panel only.

other end remains floating.

2. Speaker and Pilot Headphone ground returns

MUST be kept separate and connected

to pin 22.

3. All Power and Ground wires must be #18 gage wire

4. Pilot mic and headphone jacks must be isolated from ground.

5. PA Mute is a TTL level logic output

that is pulled low when PTT active.

6. Speaker loads may be reqired on some transceivers.

Consult manufacturer's information.

7. 28V installations require 15 ohm, 15W dropping

resistor.

8. All shielded wires must be MIL 22750 or 27500.

9. For mono versions (SL10, SL10M) connect pilot

headphone to pin 3 with 2-conductor wire.

For stereo versions (SL10S and SL10MS) connect

pilot headphone (L) to top connector, Pin 1,

using 3-conductor wire.

10. Key pin between pin 4 and 5.

11. For SL10 without marker, marker audio can be

interfaced through pin 11 (aux), and will

appear when M button pushed.

12. Marker Lamp outputs (C, 5, 4) go to +9 VDC, +/- 2VDC

at maximum bright, unlaoded) when active.

13. MM Sense output (pin 2) goes high when middle

marker signal received.

14. Pin T is unswitched, unmuted input

DME Receiver

AUX (MKR) Audio

DME Audio Hi

DME Audio Lo

See Note 11

AUX Audio Hi

AUX Audio Lo

Unswitched Audio #1

Unswitched Audio #2

Pilot PTT

See Note 2

Unswitched Input #1 Hi

Unswitched Audio Lo

Unswitched Input #2 Hi

Unswitched Audio Lo

Pilot Mic Audio Hi

Pilot Mic PTT

Pilot Mic Lo

Pilot Phones (R)

Pilot Phones (L)

Pilot Phones Lo

Speaker Hi

Speaker Lo

To Pin 1

Top Conn.

See Note 9

Ext. Marker Lamp (White)

Ext. Marker Lamp (Blue)

Ext. Marker Lamp (Amber)

MM Sense Output

White Lamp Output

Blue Lamp Output

Amber Lamp

MM Sense

MKR Ant.

RG-58A/U Coax

See Note 5

PA Mute Trigger

11-33 VDC

See Note 3, 7

28 Volt Lights Hi

14 V Lights Hi

Lights Lo

15 ohm 15W

Ground Lug

Airframe Ground

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Appendix D Top Connector wiring (Mono), SL10, SL10M

Top Connector (monaural)

Copilot Phones Hi

Copilot Phones Lo

Notes:

1. All shields should be grounded at audio panel only.

other end remains floating.

2. All phone and mic jacks must be floating from ground.

3. All wiring to conform to MIL 22750 or 27500.

4. If the Soft Mute inhibit switch is not installed,

install a jumper between pins 12 and N.

Pass. Phones Hi

Pass. Phones Lo

Pass. 1 PhonesJack

No Connection

Pass. Mic Hi

Pass. Mic Lo

Pass. 1 Mic Jack

No Connection

Pass. Mic Hi

Pass. Mic Lo

Pass. Mic Hi

Pass. Mic Lo

No Connection

Pass. 2 Mic Jack

Pass. 3 Mic Jack

Pass. 2 Phones Jack

Pass. 3 Phones Jack

Pass. Mic Hi

Pass. Mic Lo

Pass. 4 Mic Jack Pass. 4 Phones Jack

Soft Mute Inhibit Switch

Copilot Mic Audio

Copilot Copilot PTT

Copilot Mic Lo

Copilot Mic Jack

Ent. #1 Audio Hi

Ent. #1 Audio Lo

Ent. #2 Audio Hi

Ent. #2 Audio Lo

Swap

Switch

Ent. #1 Input

Ent. #2 Input

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Appendix E Top Connector wiring, (Stereo) SL10S, SL10MS

TOP CONNECTOR (Stereo)

Pilot Phones (L) -see bottom connector.

Copilot Phones (R)

Copilot Phones (L)

Copilot Phones Lo

Notes:

1. All shields should be grounded at audio panel only.

other end remains floating.

2. All phone and mic jacks must be floating from ground.

3. All wiring to conform to MIL 22750 or 27500.

Pass. Phones (R)

Pass Phones (L)

Pass. Phones Lo

Pass. 1 Phones Jack

Pass. 1 Mic Hi

Pass. 1 Mic Lo

Pass. 2 Mic Hi

Pass. 2 Mic Lo

Pass. 3 Mic Hi

Pass. 3 Mic Lo

Pass. 4 Mic Hi

Pass. 4 Mic Lo

Pass. 1 Mic Jack

Pass. 2 Mic Jack

Pass. 3 Mic Jack

Pass. 4 Mic Jack

Pass. 2 Phones Jack

Pass. 3 Phones Jack

Pass. 4 Phones Jack

Copilot Mic Audio

Copilot Copilot PTT

Copilot Mic Lo

Copilot Mic Jack

Copilot PTT

Ent. #1 Input

Ent. #1 Audio (L)

Ent. #1 Audio (R)

Ent. #1 Audio Lo

Ent. #2 Audio (L)

Ent. #2 Audio (R)

Ent. #2 Audio Lo

Swap

Ent. #2 Input

Swap

Switch

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Appendix F -Instructions for Continuing Airworthiness and FAA

Form 337

Sample ICA Checklist for UPS Aviation Technologies Audio Panels:

Section

1 Introduction

Description

Item

Controls

Servicing

Maintenance Instructions

Information

Installation of audio control panel with integrated marker beacon receiver and intercommunications system.

Installation as described in manufacturer’s installation manual referenced on

FAA Form 337, including interface with other avionics audio as required.

See installation and operator’s guide referenced on FAA Form 337.

None Required

On Condition, no special instructions

6 Troubleshooting

Removal and replacement information

Diagrams

Special Inspection Requirements

Protective Treatments

Structural Data

Special Tools

Not Applicable

Recommended Overhaul Periods

Airworthiness Limitations

Revision

In the event of a unit problem, place the unit into “OFF,” the fail-safe mode.

This allows pilot communications using COM 1. Follow checkout instructions in the installation manual referenced on the FAA Form 337. For a specific unit fault, contact the manufacturer at (865) 988-9800 for special instructions.

Removal: Using a 3/32” Allen-head wrench, carefully unscrew the locking screw located in the center of the unit. While turning the wrench CCW, gently pull on the EDGES of the bezel until the unit is free from the mounting tray.

Installation: Engage the locking screw at the back. Turn the locking screw CW, while applying slight pressure to the edges of the bezel. Do not over tighten!

Not applicable

Not Applicable

None

Not Applicable

None

Not Applicable

To be determined by installer

Example for FAA Form 337

One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration

(Airframe, Powerplant, Propeller, or Appliance) In the case of the PM6000 audio panel you may use the following text as a guide.

Installed 6-place intercom/audio selector panel, UPS Aviation Technologies SL10MS, part number 430-6060-30 in center stack instrument panel location designated for panel mounted avionics at station . Installed per AC43.13-2, Chapter 2, paragraph 23 (Instrument Panel

Mounting). Installed per UPS Aviation Technologies Installation Operators Manual p/n

_____________), revision X, dated (xx-xx).

This unit is FAA-Approved under TSO C50c for audio amplifiers, and TSO C35d for Maker

Beacon Receivers, and meets environmental tests outlined in RTCA DO-160B as appropriate or this aircraft.

Interface to existing aircraft radios in accordance with installation manual and in compliance with practices listed in AC43.13-2, Chapter 2. All wires are Mil-Spec 22759 or 27500. Connection to the aircraft dimmer bus is accomplished per the installation manual and

. Power is supplied to the unit through a 1A circuit breaker (type and part number), and total electrical load does not exceed % of the electrical system capacity with the SL10 added.

Aircraft equipment list, weight and balance amended. Compass compensation checked. A copy of the operation instructions, contained in UPS Aviation Technologies document 200-066-(xxxx), revision x, Dated ( ), is placed in the aircraft records. All work accomplished listed on Work

Order .

UPS Aviation Technologies

SL10 Series Audio Selector Panel and Intercom System

Installation Manual

Appendix G RTCA DO160B Environmental Qualification Form

Audio Selector Panel/Intercom/Marker Beacon Receiver

Part Number: 6000, 6000M, 6000MC, SL10S, SL10MS 6000M-S-C

FAA TSO Number: C50c, C35b Class A

Manufacturer: PS Engineering Incorporated 9800 Martel Road

Conditions

Section

Lenoir City TN 37772

Conducted Tests

Temperature and Altitude

Low Temperature

4.0

4.5.1 Equipment tested to CAT A1

High Temperature

Altitude

4.5.2

4.6.1 Equipment tested to CAT D1

Temperature variation

Humidity

Shock

Operational

Crash Safety (Impulse)

Crash Safety (Sustained)

Vibration

Explosion

Waterproofness

Fluids Susceptibility

Sand and Dust

Fungus

Salt Spray

Magnetic Effect

Power input

Voltage Spike

Audio Frequency

Susceptibility

Induced Frequency

Susceptibility

Radio Frequency

Susceptibility

Radio Frequency Emission

Lightning Induced Transient

Susceptibility

13.0

14.0

15.0

16.0

17.0

18.0

9.0

10.0

11.0

12.0

5.0

6.0

7.0

7.2.1

7.3.1

7.3.2

8.0

19.0

20.0

21.0

22.0 Equipment tested to Category C

Equipment tested to Category A

Equipment tested to DO-160B, Par 7.1.1

Equipment tested to Category M, Standard

Category X, not tested

Equipment tested to Category B

Equipment tested to Category A

Equipment not tested

560-0978-00

December 2001

Key features

Audio isolation amplifier
Audio selector
Voice activated intercom
Up to 3 transceivers
Up to 6 receivers
Fail-safe mode
6-station intercom
2 music inputs
Optional Marker Beacon

Frequently asked questions

The SL10-Series are compatible with both 13.8 and 28 Volt DC systems. A two (2) Amp circuit breaker is required.

The SL10-system incorporates a 'Soft Mute' system. This will mute the entertainment devices during ICS or radio traffic.

To adjust the Marker Beacon level, use a small jeweler's slotted screwdriver to turn the screw labeled 'MKR Audio Level'.

Split Mode allows the pilot and copilot to operate different transmitters independently and simultaneously. This mode is particularly useful for pilots who need to communicate on different frequencies.

Refer to aircraft and antenna manufacturer's installation instructions, as well as AC43.13-2A (or later revision), Chapter 3, for information on proper antenna installation techniques. The marker beacon antenna must be mounted on the bottom of the aircraft.