Telex Airman 7 User manual

F.01U.307.689 Rev. 02 MAY/2017
Airman 7
Operating Instructions

2 Airman 8
Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
PROPRIETARY NOTICE
The product information and design disclosed herein were originated by and are the property of
Bosch Security Systems, Inc. Bosch reserves all patent, proprietary design, manufacturing,
reproduction, use and sales rights thereto, and to any article disclosed therein, except to the
extent rights are expressly granted to others.
COPYRIGHT NOTICE
Copyright 2017 by Bosch Security Systems, Inc. All rights reserved. Reproduction, in whole or
in part, without prior written permission from Bosch is prohibited.
*All other trademarks are property of their respective owners.
WARRANTY AND SERVICE INFORMATION
For warranty and service information................................................... www.telex.com/warranty
CUSTOMER SUPPORT
Technical questions should be directed to:
Customer Service Department
Bosch Security Systems, Inc.
www.telex.com
Technical Solutions
Telex Aviation Technical Support ...................................................................... 1-800-898-6723
After-Sales Support............................................................................................. 1-800-553-5992
DISCLAIMER
The manufacturer of the equipment described herein makes no expressed or implied
warranty with respect to anything contained in this manual and shall not be held liable
for any implied warranties of fitness for a particular application or for any indirect,
special, or consequential damages. The information contained herein is subject to
change without prior notice and shall not be construed as an expressed or implied
commitment on the part of the manufacturer.

Airman 8 Important! Read Before Use 3
Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
Important!
Read Before Use
General:
• Read this technical manual completely before using the product.
• This technical manual is also available at www.telex.com/aviation.
Health and Safety:
• Always keep at least 4” (~10cm) between the ear cups and a pacemaker
or implanted defibrillator because this product generates magnetic fields.
• Keep away from children – product parts and accessories are a choking
hazard.
• This headset is capable of producing sound pressure over 85dB(A). In
many countries, this is the maximum legal level for continuous noise
exposure during the working day. Do not listen at high volume levels for
extended periods of time to prevent hearing damage.
Preventing Damage and Malfunctions:
• Always keep the headset dry and do not expose it to extreme
temperatures to avoid corrosion or deformation.
• Never attempt to repair a headset which is not operating correctly.
Contact the Telex dealer you purchased the headset through or
authorized repair facility.
• Only replace parts of the headset whose replacement is described within
this manual. All other parts must be replaced by an authorized repair
facility.

4 Important! Read Before Use Airman 8
Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02

Table
of
Contents
F.01U.307.689 Rev. 02
Operating Instructions
Bosch Security Systems, Inc.
IMPORTANT! READ BEFORE USE ............................... 3
INTRODUCTION ..............................................................7
General Description .............................................................. 7
Features ................................................................................ 7
FAA ....................................................................................... 8
Reference View ................................................................... 10
Connections ........................................................................ 11
INSTALLATION .............................................................13
Installation ........................................................................... 13
Headset Adjustment ............................................................ 16
Mic Placement .................................................................... 18
Microphone Gain Adjustment .............................................. 19
Clothing Clip Assembly and Attachment ............................. 20
CARE & MAINTENANCE ..............................................21
Recommended Maintenance Schedule .............................. 21
Cleaning the Headset and Connectors ............................... 22
Cleaning the Ear Cushions and Headband Pads ............... 22
Replacing Ear Cushions and Headband Pads .................... 22
Installing or Replacing the Hygienic Covers ....................... 24
Cleaning or Replacing the Windscreen ............................... 24
Headset Storage ................................................................. 25
TROUBLESHOOTING ...................................................27
Troubleshooting .................................................................. 27
Label Information ................................................................ 32

6 Airman 7
F.01U.307.689 Rev. 02
Operating Instructions
Bosch Security Systems, Inc.
SPECIFICATIONS .........................................................33
Specifications ......................................................................33
Part Number Information .....................................................35

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
CHAPTER 1
Introduction
General Description
The Telex Airman 7 is a lightweight aviation headset designed specifically for
optimizing pilot communications in commercial and business turbine aircraft.
Building on the tradition of the Airman 750, the Airman 7 has improved
durability, intelligibility, and comfort. Soft pliable ear cushions and headband
pads combine with dual-direction ear cup pivots to provide long flight wearing
comfort.
Features
•Flexible boom-mounted, noise-reducing microphone, positionable for
right- or left-side use
•Dual, Single, and Listen-only versions available
•Soft, pliable ear cushions and headband pads
•FAA TSO C-139a approved

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
8 Introduction Airman 7
FAA
The Telex Airman 7 Headset (with or without microphone) is approved for
aircraft use under FAA TSO-C139A.
The conditions and tests required for the TSO approval of this article are
minimum performance standards. It is the responsibility of those installing this
article, either on or within a specific type or class of aircraft, to determine that
the aircraft installation conditions are within the TSO standards. TSO articles
may have separate approval for installation on aircraft. The article may be
installed only if performed under 14 CFR part 43 or the applicable air
worthiness requirements.
Tests were conducted per the minimum standards defined in RTCA DO -214A
and DO-160G. The headset was designed and is manufactured to meet the
following environmental categories.
Environmental Qualification Form
CONDITIONS
DO-160G
SECTION
DESCRIPTION OF TESTS
CONDUCTED
Temperature and Altitude 4.0
Ground Survival Low-Temp/Short-Time
Operating Low-Temp
4.5.1 Equipment tested to Category A1
Operating Low Temperature 4.5.2 Equipment tested to Category A1
Ground Survival High-Temp & Short-Time
Operating High-Temp
4.5.3 Equipment tested to Category A1
High Temperature 4.5.4 Equipment tested to Category A1 with
70°C max. exception
by DO-214 2.5.1.2
In-Flight Loss of Cooling 4.5.5 Equipment identified as Category X, N/A
Altitude 4.6.1 Equipment tested to Category A1/
50000ft.
Decompression 4.6.2 Equipment tested to Category A1/
50000ft.
Overpressure 4.6.3 Equipment tested to Category A1
Temperature Variation 5.0 Equipment tested to Category C
Humidity 6.0 Equipment tested to Category A
Operational Shock and Crash Safety 7.0 Equipment identified as Category X, N/A
by DO-214 2.5.4.1 and 2.5.4.2
Vibration 8.0 Equipment tested to Category S, aircraft
zone 2 (instrument panel
or console mounting), Aircraft type 2
(Fixed Wing Turbojet or Turbofan
engines), using vibration test curve B.
Explosive Atmosphere 9.0 Not Applicable
Waterproofness 10.0 Not Applicable
Fluids Susceptibility 11.0 Not Applicable
Sand and Dust 12.0 Not Applicable

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
Airman 7 Introduction 9
Fungus 13.0 Equipment identified as Category X, N/A
Salt Fog Test 14.0 Equipment identified as Category X, N/A
Magnetic Effect 15.0 Equipment is Category Z
Power Input 16.0 Equipment tested to Category A
Voltage Spike 17.0 Equipment tested to Category A
Audio Frequency Susceptibility 18.0 Equipment tested to Category R
Induced Signal Susceptibility 19.0 Equipment tested to Category ZW
Radio Frequency Susceptibility 20.0 Equipment tested to Category T
Momentary Equipment tested to Category T
Steady State Equipment tested to DO-214 2.5.11.2
Emission of RF Energy 21.0 Equipment tested to Category M
Lightning Induced Transient Susceptibility
(multiple burst)
22.0 Equipment identified as Category L2
Lightning Direct Effects 23.0 Not Applicable
Icing 24.0 Not Applicable
Electrostatic Discharge 25.0 Not Applicable
Fire, Flammability 26.0 Not Applicable - all components except
wire considered small parts
Wire Flammability Flammability:
-JAR, FAR 25.853, 25.855, 25.869, and
appendix F
CONDITIONS
DO-160G
SECTION
DESCRIPTION OF TESTS
CONDUCTED

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
10 Introduction Airman 7
Reference View
FIGURE 1. Airman 7 Reference view
1. Headband Pad
2. Headset Slider
3. Ear Cushion
4. Ear Cup Rotator
5. Yoke
6. Boom Rotator
7. Strain Relief
8. Boom
9. Microphone/Windscreen
10. Tem pl e Pa d

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
Airman 7 Introduction 11
Connections
Airman 7 Series headsets are available with multiple connector styles
depending on the application of use. All models utilize custom cables
developed specifically for in-cockpit use. All connection points implement
strain and bend relief features to provide long-term durability. Shielded wires
throughout the headset protect against RFI (Radio Frequency Interference)
and EMI (Electromagnetic Interference).
Dual Plug PJ Connector
PJ-068 (equivalent) Description
Tip Not Used
Ring Mic Signal
Sleeve Mic GND
PJ-055 (equivalent) Description
Tip Headphone Signal
Sleeve Headphone GND

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
12 Introduction Airman 7
Single Plug PJ Connector
5-Pin XLR Aircraft Cable
PJ-068 (equivalent) Description
Tip Headphone Signal
Sleeve Headphone GND
Pin Description Color
1 Headphone Signal Yellow
2 Headphone GND Black/Outer Shield
3 Mic Signal White
4 Mic GND and ANR Return Blue/Inner Shield
5 ANR IN Red

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
CHAPTER 2
Installation
Installation
To install the headset for use, do the following:
Step 1 Inspect the headset for signs of damage. Do not use the
headset if signs of damage are evident.
Step 2 Plug the headset into the aircraft console, see “Install the Sin-
gle Plug Headphone in an Aircraft (Listen Only)” on page 14,
“Install the Dual Plug Headset in an Aircraft” on page 14, or
“Install the XLR Plug Headset in an Aircraft” on page 15.
Step 3 Put the headset on.
Step 4 Adjust the headset for proper use, see “Headset Adjustment”
on page 16.
Step 5 Attach the clothing clip.

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
14 Installation Airman 7
Install the Single Plug Headphone in an Aircraft (Listen Only)
To install the single plug headphone in an aircraft, do the following:
1. Insert the plug into the headset jack on the aircraft console.
Install the Dual Plug Headset in an Aircraft
To install the dual plug headset in an aircraft, do the following:
1. Insert the microphone plug (smaller plug) into the microphone
jack on the aircraft console.
2. Insert the headset plug (larger plug) into the headset jack on the
aircraft console.
FIGURE 1. Single Plug Installation
FIGURE 2. Dual Plug Installation

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
Airman 7 Installation 15
Install the XLR Plug Headset in an Aircraft
To install the XLR plug headset in an aircraft, do the following:
> Insert the XLR plug into the XLR jack on the aircraft audio panel.
FIGURE 3. XLR Plug Installation

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
16 Installation Airman 7
Headset Adjustment
The Airman 7 headset is designed to rest evenly on top of the head with each
ear cup sitting centered and flush on each ear. The headset/headphone
should fit over the head without pinching or gapping.
Headband Adjustment
To adjust the headband size, do the following:
> With the headset resting securely on the top of the head, slide the ear
cup up and down to center the ear cup over the ear.
NOTE: The headset works best when the headband pad is centered on
the head. Both sides of the headset should be slid evenly for
proper use.
FIGURE 4. Headband Adjust

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
Airman 7 Installation 17
Ear Cup Adjustment
To adjust the ear cup to fit correctly, do the following:
> Swivel the ear cup left or right to position the ear cup straight on
the ear.
NOTE: Over time, repositioning the headset may be necessary for
comfort.
IMPORTANT: Take care not to over-adjust the ear cups. Do not rotate
the ear cups more than 90° or damage may occur.
FIGURE 5. Ear Cup Adjustment

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
18 Installation Airman 7
Mic Placement
The headset ships with the boom positioned at the top of the headband.
Rotate the entire boom overhead to wear the microphone on either the right or
left side of the head.
CAUTION: There are two(2) stops below the boom housing. Rotating the
boom past these stops will cause damage to the unit. The boom
microphone is rotated upward to move to the other side of the
headset.
***Do not rotate past the built-in stops. Doing so will damage
the microphone.***
FIGURE 6. Boom Mic Rotation

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
Airman 7 Installation 19
To properly place the mic, do the following:
1. Rotate the boom to the side you want to use (left or right).
2. Bend the boom to position the mic in front of the mouth.
NOTE: For best noise-cancelling quality, place the boom mic as
close to the mouth as possible and speak into the mic.
Microphone Gain Adjustment
The Microphone Gain has been factory-adjusted to the nominal level
required for normal radio operation.
IMPORTANT: Under normal circumstances microphone gain does not
require adjustment. If needed, adjustment by an
authorized aviation technician is recommended. For
instructions on how to adjust the Microphone Gain, see
the Customer Maintenance Manual, located on
www.telex.com.
FIGURE 7. Mic Placement

Bosch Security Systems, Inc. Operating Instructions F.01U.307.689 Rev. 02
20 Installation Airman 7
Clothing Clip Assembly and Attachment
Using the clothing clip reduces the cord weight from the headset. The clothing
clip comes attached to the cord and only needs to be adjusted up or down for
best use.
FIGURE 8. Clothing Clip Assembly and Attachment