38110073_3 7 02 Stratus 30XT Telex Stratus30

stratus30-30XT

User Manual: Stratus 30XT

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®

User Instructions

Stratus 30XT (shown)/Stratus 30
Active Noise Reduction Headset

Detented Sliders
Adjust to
Any Size Head

Replaceable
Wide Head Pad

Earcups Pivot on
Two Planes to
Conform to
Wearer

Patented
Tension
Adjust Knob
(Comfort
Camtm)

Replaceable
Ear Cushions

Ball and Socket
Jointed Boom Rotates
Overhead for Mic
Placement on Either
Side of Head

Flexible Boom Permits
Precise Mic Placement

Figure 1
Stratus 30XT Reference View
This device complies with part 15 of the FCC Rules,
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesired operation.

Noise Canceling
Electret Microphone

Design Features (See Figure 1)
Noise Reduction
Passive noise reduction: >29dB
Active noise reduction: up to 16dB (Stratus 30XT)
Active noise reduction: up to 13dB (Stratus 30)
Fit and Comfort
Detented slide adjustment on the headband allows the ear cup to be easily
raised or lowered for proper fit. Yoke design allows the earcup to pivot in two
planes assuring proper seal to the head and distributing ear cushion
pressure evenly over it’s entire surface. Adjustable earcup pressure by
rotating the patented “Comfort Camtm” to one of three tension settings.
1" thick ear cushion made from heat sensitive slow recovery foam which will
conform to your head to provide a perfect seal while spreading the weight over
a large area eliminating pressure points (Stratus 30XT only).
Boom Microphone
Amplified electret noise-canceling microphone eliminates unwanted cabin
noise from entering the communication system. Boom rotates up to allow the
boom to be worn on the left or right side. Retaining hooks are designed into
the microphone housing to securely hold the windscreen in place and prevent
it from slipping off.
Cordage and Plugs
All cables are shielded to protect against RFI (Radio Frequency Interference).
Strain relief is added to all cord entry points to provide protection from tugging
resulting from normal usage. Bend relief is added at high-flex cord entry
points to protect cords from breakage due to bending. The headset includes
separate receiver and microphone plugs for plugging into the aircraft radio/
intercom system.
Cable with 2.5mm plugs is provided for interfacing to a cellular telephone.
Cable with 3.5mm plugs is provided for interfacing to a portable music device
such as a CD player or MP3 player.
Cigarette lighter adapter is provided to power the headset off of aircraft power
and to recharge the batteries (Stratus 30XT only).
AC wall adapter is provided to recharge the batteries when user is away from
the aircraft (Stratus 30XT only).

Page 1

Auto Shut-Off
Headset will shut off automatically after 15 minutes in low-noise
environments. When Auto Shut-off is enabled, things that keep headset on
are: communication over the aircraft radio/intercom system, cellular phone
conversations, listening to music, cabin noise greater than 90dB SPL.

Battery / User Interface Module
Puts most commonly used controls at pilot’s fingertips. Cell phone jack for
communication on your cell phone using the headset microphone and
speakers. Auxiliary input jack for listening to portable CD and MP3 players
using the headset speakers. Power on/off button turns on and off all function
to and from the headset except for to and from the radio/intercom system.
Accessory mute button quickly and completely disables the cell phone and
auxiliary audio devices, while maintaining radio/intercom communication.
LED indicates power on/off, accessory enabled/muted, low battery (and
battery charging on Stratus 30XT only). DC input jack to power the headset off
of aircraft power and to recharge the batteries (Stratus 30XT only).

Electrical Requirements
Microphone Bias Voltage
8-16 VDC. Output is designed for radio input impedances from 50-600 ohms.

Headset Power
2 AA Alkaline or NiMH batteries or Panel power from 8-32 VDC negative
ground electrical systems (Stratus 30XT only).

Page 2

Headset Operation
Headband Size Adjustment
With the headband resting securely on the top of the head, check that the ear
cups are centered over the ears. Reposition them if necessary by moving the
headband sliders up or down.

Figure 2
Headband Size
Adjustment

Headband Pressure Adjustment
There are three pressure settings. Increasing the pressure will improve the
seal between the ear cup and the head for greater noise reduction. To change
the pressure setting, remove the headset and fold the ear cup inward, then
rotate the Comfort Camtm to the desired setting. Repeat for both ear cups.
Both sides of the headband should be set to the same pressure setting to
keep the headband properly centered on the head.
tm
Comfort
Cam
Adjustment
KNOB
ADJUSTMENT
SETTINGSSettings

HIGH

Side View

MEDIUM

Top View
Figure 3
Headband Pressure Adjustment
Page 3

LOW

Microphone Boom Rotation
Rotate the entire boom overhead to wear the microphone on either the right or
left side of the head.

Figure 4
Microphone Boom Rotation

Microphone Placement
Reshape the boom so that the microphone
will be in front of the mouth. To assure
optimal performance, the user should
position the microphone close to the lips
as possible, near the corner of the mouth
with the flat part of the microphone parallel
to the user’s face. Speak in a normal voice.

Mono/Stereo Selection

Figure 5
Mic Placement

The user can set the mono/stereo headphone switches to match the type of
sound system in your aircraft. If the headset is set for stereo and the intercom
is set for mono, sound will only come out of one ear cup.
To change the mono/stereo setting, remove the batteries (see Battery
Installation) and locate the DIP switch in the battery compartment. Using a
small flat-blade screwdriver, set switch positions 1 and 2 to the following
locations:
For mono set switch 1 away from the number 1 and switch 2 toward the
number 2. For stereo set switch 1 toward the number 1 and switch 2 away
from the number 2.

Figure 6
Mono/Stereo Selection
Page 4

Battery Installation
*Note - Rechargable NiMH Batteries supplied with the Status 30XT need to
be fully charged before first use.
1. Press the thumb-grip area of the battery cover and slide the battery
cover down, then lift off the battery cover.
2. Place the batteries into the battery compartment in the direction indicated
3. Slide the battery door back into place.

Accessory Connections
Connect cellular telephone and / or audio input devices as desired.
The Telex Stratus 30XT cell phone / audio interface has been designed to
function with the widest array of cellular telephones and portable audio
devices. There are cell phones and audio devices on the market not designed
to industry physical and electrical standards. These devices are not
guaranteed to function properly with the Stratus 30XT headset.
Please see the Telex website for additional information.
www.telex.com/aircraft

Speaker Volume Adjustment
When the microphone is worn on the
left side, volume is increased by
rotating the top of the volume controls
toward the front of the head. Control
operation is reversed when the
microphone is worn on the right side.
Volume control affects communications
as well as cell phone and auxiliary
audio inputs.

Volume
Control

Figure 7
Volume Adjustment

Powering On/Off
To turn the headset on, press the ON/OFF button. To turn the headset off, hold
down the ON/OFF until the LED blinks rapidly, then let go. A blinking LED
indicates that power is on.

Accessory Muting
To either enable or mute the accessories, press the accessory mute button.
When the accessories are muted, the LED will blink at a slower rate than
when they are enabled.

Page 5

Battery Charging (Stratus 30XT only)
To charge the batteries, connect either the AC wall adapter or the aircraft
cigarette lighter adapter to the DC input jack. If the headset is off, the LED will
light solid red during charging. If the unit is on and the batteries are charging,
the LED will be mostly on but blink off occasionally, as opposed to being
mostly off but blinking on occasionally when the batteries are not charging.

Disabling Auto Shut-Off
To disable the Auto Shut-Off feature, remove the batteries (see Battery
Installation) and locate the DIP switch in the battery compartment. Using a
small flat-blade screwdriver, set switch position 3 away from the number 3.
Auto Shut-Off can be re-enabled by sliding switch position 3 toward the
number 3.

Figure 8
Disabling Auto Shut-off

Reading the LED Indicator
Battery Normal

Battery Low

Battery Charging
(Stratus 30XT only)

Power Off

LED Off

LED Off

LED Solid Red

Power On /
Accessories Enabled

Blinks Green every 2
sec.

Blinks Red every 2
sec.

Green, Blinks off every
2 sec.

Power On /
Accessories Muted

Blinks Green every 4
sec.

Blinks Red every 4
sec.

Green, Blinks off every
4 sec.

Page 6

Microphone Gain Adjustment
The microphone gain has been factory-adjusted to the nominal level required
for aviation use, and it should normally not require readjustment. Any changes
to the microphone gain should be done by a qualified avionics technician. To
access the gain trimmer, insert a small flat-blade screwdriver through the
access hole in the microphone assembly. Clockwise rotation of the trimmer
increases gain.

MIC GAIN
ADJUSTMENT
ACCESS

Figure 9
Microphone Gain Adjustment

Microphone Replacement
Press the release catch and carefully pull
out the microphone element. Avoid pulling
the connecting wires.

Figure 10
Mic Element Removal

Ear Cushion Replacement
To remove an old ear cushion, simply grasp it and pull it off the ear cup. To
install a new ear cushion, start at the top of the ear cup. Place the flap on the
back of the ear cushion over the lip along the top of the ear cup. Then, pull the
bottom of the ear cushion down over the lip at the bottom of the ear cup.

Wiring Diagram
.206 DIA. MICROPHONE PLUG
MIC +

RED

MIC -

BLK
SHLD

Figure 11
Wiring Diagram

.250 DIA. SPEAKER PLUG
SPKR - L

RED
BLUE

SPKR - R

BLK
WHITE
SHLD
SPKR - GND

Page 7

Specifications
Receivers:
Type: Dynamic
Frequency Response: 50 Hz - 10 kHz
Sensitivity: 95 ± 5 dB SPL (1 kHz, 1 mW input)
Impedance (Max. Volume):
Stereo.........................................300 ohms per side
Monaural...................................................150 ohms
Headset Power: 4AA Batteries or Panel Power from 8-32 Vdc(Stratus 30XT only)
Microphone:
Element Type: Amplified noise-canceling electret
Frequency Response: 100 Hz - 3.5 kHz
Sensitivity:
-50 ± 6 dB (ref: 1V/ µbar at 1 kHz with 12 Vdc
supply voltage and 470 ohm DC, 150 ohm AC load)
Matching Impedance:
50-600 ohms
Gain Adjustment Range: ± 5 dB (clockwise rotation increases gain)
Operating Voltage: 8-16 Vdc (supplied by aircraft radio/intercom)
Cordage:
Approx. 6.5 ft (2 m) total
Connectors:
Microphone Plug: PJ-068 or equivalent
Receiver Plug: PJ-055 or equivalent
2.5mm 3 conductor audio jack for connection to cell phone connection
3.5mm 3 conductor audio jack for connection to auxiliary audio
DC Jack: 1.3mm ID, 3.5mm OD, pin + (Stratus 30XT only)
Weight:
Effective Head Weight: Approximately 18.5 oz. (524 g)
Color: Grey/Black

Page 8

Ordering Information
Stratus 30XT Headset ............................................. Catalog no. PRD000011100
Stratus 30 Headset ................................................. Catalog no. PRD000011000
Stratus 30XT 1" Foam-filled Ear Cushions (package of 2)
........................................................................................ Catalog no. 800456021
Stratus 30 Ear Cushions (package of 2) ...................... Catalog no. 800456008
Stratus 30XT Premium Headband Pad) ....................... Catalog no. 800456017
Stratus 30 Headband Pad ............................................. Catalog no. 800456004
Replacement electret microphone ............................... Catalog no. 800136100
Microphone windscreen ................................................ Catalog no. 800456000
Clothing Clip .................................................................. Catalog no. 590637000
Stratus 30XT Carring Case ..................................... Catalog no. CME000009000
Stratus 30 Zippered Pouch ............................................ Catalog no. 500266000
Cell Phone Accessory Cable ......................................... Catalog no. 550216002
Auxiliary Device Accessory Cable .................................. Catalog no. 550216003
Aircraft Power Cord (for Stratus 30XT only) ................... Catalog no. 550216004
AC Wall Adapter (for Stratus 30XT only) ........................ Catalog no. 800456023
Battery Box Door (for Stratus 30 and 30XT only) ........... Catalog no. 800456024

Page 9

TELEX COMMUNICATIONS, INC. - LIMITED WARRANTY
Uniform Limited Warranty: Telex branded products are warranted by Telex Communications, Inc.
against malfunction due to defects in materials and workmanship for a specified period, as noted in the
individual product line statements below, beginning with the date of original purchase by the end-user.
If such malfunction occurs during the specified period, the product will be repaired with new or
remanufactured equivalent parts and products or replaced (at our option) without charge. The product
will be returned to the customer postage prepaid.
Exclusions and Limitations: The limited warranty does not apply to: (a) exterior finish or appearance;
(b) certain specific items described in the individual product line statements below, (c) malfunction
resulting from use or operation of the product other than as specified in the product data sheet or
owner’s manual; (d) malfunction resulting from misuse or abuse of the product, including accidents; (e)
defects resulting from excess moisture, lightning or power surges; or (f) malfunction occurring at any
time after repairs have been made to the product by anyone other than a Telex Service Department
employee or any of its authorized service representatives. The warranty is void if the label bearing the
product serial number (if applicable) has been removed or defaced.
Other Express or Implied Warranties Excluded: TO THE EXTENT PERMITTED BY APPLICABLE LAW,
THE WARRANTIES SET FORTH HEREIN ARE IN LIEU OF, AND EXCLUSIVE OF, ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED. SPECIFICALLY EXCLUDED, WITHOUT LIMITATION, ARE
THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR USE OR FOR A PARTICULAR PURPOSE,
AND WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE OR ANY
OTHER MATTER. IF, UNDER APPLICABLE LAW, IMPLIED WARRANTIES MAY NOT BE VALIDLY
EXCLUDED, THE DURATION OF SUCH IMPLIED WARRANTIES IS LIMITED TO THE WARRANTY
PERIOD.
Limitation of Remedies; Certain Damages Excluded: REPAIR OR REPLACEMENT OF DEFECTIVE
PRODUCTS ARE THE SOLE AND EXCLUSIVE REMEDIES PROVIDED BY TELEX TO THE CUSTOMER
OR TO ANY OTHER PERSON AND SHALL CONSTITUTE FULL SATISFACTION OF ALL CLAIMS,
WHETHER BASED ON CONTRACT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE. TELEX’s
MAXIMUM LIABILITY SHALL NOT EXCEED THE ACTUAL PURCHASE PRICE PAID FOR THE PRODUCT
BY THE CUSTOMER. TELEX AND ITS SUBSIDIARIES SHALL NOT BE LIABLE FOR ANY INDIRECT,
INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES INCLUDING, WITHOUT
LIMITATION, INJURY TO PERSONS OR PROPERTY OR LOSS OF USE. SOME STATES AND
COUNTRIES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF CERTAIN DAMAGES, SO THE
ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. IN SUCH STATES AND COUNTRIES,
TELEX SHALL BE LIABLE FOR NO MORE THAN THE DIRECT DAMAGES FOR BODILY INJURY
AND/OR REAL OR PERSONAL PROPERTY ARISING FROM THE NEGLIGENCE OF TELEX.
Other Rights: This warranty gives you specific legal rights, and you may also have other rights,
depending upon where you live.
Obtaining Warranty Service: To obtain warranty service, a customer must deliver the product, prepaid,
to the appropriate Telex Service Department listed below or any of its authorized service representatives
together with proof of purchase of the product in the form of a bill of sale or invoice.
Applicable Law. The validity, performance and construction of this limited warranty shall be governed
by the laws of the State of Minnesota without reference to its choice of law principles. The Minnesota
federal courts and/or the state courts located in Hennepin County, Minnesota, shall have exclusive
personal and subject matter jurisdiction over, and the parties shall each submit to the jurisdiction of
such courts and to venue in Minnesota with respect to any dispute concerning the product or pursuant
to this limited warranty, and all objections to such jurisdiction or to such venue are hereby waived.
For additional warranty repair or service information, contact the Telex Service Department listed
below:
USA, Canada, & Latin America
1720 E 14th Street
Glencoe, MN 55336
Tel: 320-864-3177
Fax: 320-864-3225

Page 10

CUSTOMER SERVICE
For information or technical assistance, call, write, or email Telex at:
Customer Service Department
Telex Communications, Inc.
12000 Portland Ave. So.
Burnsville, MN 55337 U.S.A.
(952) 884-4051
www.telex.com/aircraft
When returning equipment for repair, please enclose an explanation of
the problem. And, if the equipment is covered under warranty, please
enclose a copy of your proof of purchase. The equipment must be
accompanied by documentation stating your name, return address, and
telephone number.
Return equipment for factory repair to:
Customer Service Department
Telex Communications, Inc.
1720 East 14th St.
Glencoe, MN 55336 U.S.A.
(320) 864-3177
Warranty Repairs - If in warranty, no charge will be made for the repairs.
Equipment being returned for warranty repair must be sent prepaid and
will be returned prepaid.
Non-warranty Repairs - Equipment that is not under warranty must be
sent postage prepaid to Telex. If requested, an estimate of repair costs
will be issued prior to service. Once you approve repair, and repair of
equipment is completed, the equipment will be returned on a collect on
delivery basis. Collect charges may be avoided by sending a signed
check for payment in full along with your signed estimate approval form
(the estimate includes the shipping charge).

Telex Warranty Term Lengths
1
Month

3
12
36
60
Months Months Months Months

AVIATION
X

Stratus 30

X

Stratus 30XT

Note: Subject to change without notice.

Page 11

Other

Notes

Page 12

Notes

Page 13

LIT000011 Rev B

www.telex.com/aircraft

05/2008



---

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