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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 Bosch Service 

Department listed below:

USA, Canada, & Latin America

1720 E, 14th Street
Glencoe, MN 55336
Tel: 320-864-3177
Fax: 320-864-3225

Customer Service

For information or technical assistance, call or 

write Bosch at:

Customer Service Department

Bosch Security Systems, 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 you name, return 

address, and telephone number.

Return equipment for factory repair to:

Customer Service Department
Bosch Security Systems, 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 Bosch. 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 you signed 

estimate approval form (the estimate includes 

the shipping charge).

Bosch Warranty Term Lengths

1 Month 3 Months

12 

Months

36 

Months

60 

Months

Other

Aviation

Echelon 25XT

X

** Warranty subject to change without notice.

Summary of Contents for Echelon 25XT

Page 1: ...User Instructions Echelon 25XT Noise Reduction Headset LIT000014 Rev B 6 2009...

Page 2: ...SPECIFICALLYEXCLUDED WITHOUT LIMITATION ARE THE WARRANTIES OF MERCHANTABILITY FITNESS FOR USE OR FOR A PARTICULAR PURPOSE AND WARRANTIES ARISING FROM COURSE OR DEALING OR USAGE OF TRADE OR ANY OTHER M...

Page 3: ...om 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 equipmen...

Page 4: ...6022 Replacement Head Pad 1 590637000 Cord Clip 1 800136100 Microphone Element Assembly 1 800456021 Foam Ear Pads set of 2 1 800456000 Windscreen 1 CME000009000 Carrying Case 1 550216002 Cell Phone Ac...

Page 5: ...dband Pressure Adjustment 5 Left or Right Side Microphone Placement 6 Connection 7 Stereo Mono Switch 7 Cell Phone Audio Interface 7 Volume Adjustment 8 Microphone Gain Adjustment 8 Ear Cushion Replac...

Page 6: ......

Page 7: ...3 FIGURE 1 Echelon 25XT Noise Reduction Headset...

Page 8: ...earcup sliders up or down on the headband Size is properly adjusted when the earcups are centered over the ears It is important to make the same adjustments to both sides of the headband to keep the...

Page 9: ...pressure setting do the following 1 Remove the headset 2 Fold the earcup inward as shown in Figure 3 3 Rotate the Comfort Cam adjustment knob to the desired setting 4 Repeat for both earcups Both sid...

Page 10: ...ophone Placement To adjust the microphone to the left or right do the following 1 Rotate the boom as shown inFigure 4 2 Reshape the boom so the microphone is at the corner of the mouth FIGURE 4 Rotati...

Page 11: ...a unique amplified interface allowing for the connection of a cellular telephone and an audio input simultaneously This configuration allows the user to set up before take off and eliminates the need...

Page 12: ...rmation see the Bosch website www telex com aircraft Volume Adjustment When the microphone is worn on the left side volume is increased by rotating the top of the volume controls clockwise Control ope...

Page 13: ...an old ear cushion do the following Grasp the ear cushion and pull it off the earcup To install a new ear cushion do the following 1 Starting at the top of the earcup place the flap on the back of th...

Page 14: ...Press and release the catch on the microphone element 2 Carefully pull out the element NOTE Avoid pulling the microphone wires 3 Pull the plastic connector housing to unplug the microphone element FIG...

Page 15: ...phone Type Noise canceling electret condenser Output Impedance 50 Ohm Frequency Response 100Hz 3 5kHz Sensitivity 50 6dB ref 1V bar Operating Voltage 8 16Vdc Cords and Plugs Cord 5 5ft 1 7m y cord wit...

Page 16: ......

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