Telex Echelon 25XT manual

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A good user manual

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First and foremost, an user manual of Telex Echelon 25XT should contain:
- informations concerning technical data of Telex Echelon 25XT
- name of the manufacturer and a year of construction of the Telex Echelon 25XT item
- rules of operation, control and maintenance of the Telex Echelon 25XT item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Telex Echelon 25XT alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Telex Echelon 25XT, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Telex service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Telex Echelon 25XT.

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It is mostly in the manuals where we will find the details concerning construction and possibility of the Telex Echelon 25XT item, and its use of respective accessory, as well as information concerning all the functions and facilities.

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Table of contents for the manual

  • Page 1

    User Instructions Te l e x ® Echelon 25XT Noise Reduction Headset[...]

  • Page 2

    Earcups Pivo t on T wo Planes to Conf orm to Wearer Replaceable Wide Head Pa d Echelon 25XT Noise Reduction Headset V olume Detented Sliders Adjust to Any Size Head Earcups Pivot on T wo Planes to Conform to Wearer Patented T ension Adjust Knob (Comf or t Cam tm ) Replaceable Ear Cushions Noise Canceling Electret Microphone Flexib le Boom P er mits[...]

  • Page 3

    Page 1 Headband Size Adjustment T o adjust the headband size, move the 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 headband and pad properly centered over the head. HIGH MEDIUM LOW Comfort Cam?[...]

  • Page 4

    Page 2 Connection Connect the headset to the aircraft radio or intercom system as shown in Figure 4. Figure 4 Echelon 25XT Connectors Stereo Mono Switch This switch is located on the Y -cord (Figure 4). Set the switch to stereo for aircraft with a stereo intercom system. Set the switch to mono for monaural intercom systems or for direct connection [...]

  • Page 5

    Page 3 Figure 5 Mic Gain Adjustment Microphone Gain Adjustment The microphone gain has been factory-adjusted to the nominal level required for aircraft use and should normally not require readjustment. Readjustment by a qualified avionics technician is recommended. T o access the gain trimmer , insert a small flat- blade screwdriver through the acc[...]

  • Page 6

    Page 4 Specifications Receivers T ype: Dynamic Impedance: Accepts 150-600 ohm sources Frequency Response: 350 Hz - 3.0 kHz ± 6dB Sensitivity: 90 ±5 dB SPL for 1 mW , 1 kHz input Maximum Power Input: 30 mW Microphone/Amplifier Assembl y Microphone T ype: Noise-canceling electret condenser Output Impedance: 50 ohms (designed for radio input impedan[...]

  • Page 7

    Page 5 TELEX COMMUNICA TIONS, INC. - LIMITED W ARRANTY Uniform Limited Warranty: T elex branded products are warranted by T elex Communications, Inc. against malfunction due to defects in materials and workmanship for a specified period, as noted in the individual product line statement s below , beginning with the date of original purchase by the [...]

  • Page 8

    CUST OMER SER VICE For information or technical assistance, call, write, or email T elex at: Customer Service Department T elex Communications, Inc. 12000 Portland A ve. 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 [...]

  • Page 9

    Notes[...]

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    Notes[...]

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    Notes[...]

  • Page 12

    LIT000014 Rev A 04/2006[...]