Telex ANRTM 150 Headphones User Manual
Contents
1. i 3 an I TO RADIO MONO STEREO MICROPHONE JACK HEADPHONE SWITCH Figure 2 Headset Connection 2 Rotate the entire boom overhead to wear the microphone on either the right or left side of the head 3 For best noise cancellation position the microphone as close to the mouth as possible and speak in a normal voice Figure 4 4 To activate noise reduction plug the headset into the battery or power module To turn off noise reduction unplug the headset from the battery or power module 5 With the headband resting securely on the top of the head check that the ear cups are centered over the ears Reposition them if nec essary by moving the headband sliders out or in Proper performance depends on proper fit of the headset 6 Headband Pressure Adjustments There are three pressure settings Increasing the pressure will im prove the seal between the earcup and the head for greater noise reduction To change the pressure setting remove the headset and fold the earcup inward as shown in Figure 3 then rotate the adjust ment knob to the desired setting Repeat for both earcups Both sides of the headband should be set to the same pressure setting to keep the headband properly centered on the head Page 3 HIGH MEDIUM Comfort Cam Adjustment Knob Settings Figure 3 Headband Pressure Adjustment 7 Volume Adjustment Procedure The following procedure is recommended to assure that there will2. be sufficient radio volume in the event of a loss of power to the headset a Turn the headset power off b Set the headset volume controls to the middle of their range c USING THE AIRCRAFT RADIO VOLUME CONTROL adjust headphone volume for clear communication under typical operating conditions d Turn on the headset and adjust the volume controls ON THE HEADSET to achieve clear communication with noise reduction activated Tension Adjustment Knob Figure 4 Microphone Placement Figure 5 Volume Control Page 4 Specifications Receivers and Noise Reduction Circuits Reciever Type Dynamic Frequency Response 50 Hz 1 5 kHz Sensitivity Max Volume 95 5 dB SPL 1 kHz 1 mW input per earcup side Impedance Max Volume Stereo 300 ohms per side Monaural 150 ohms Stereo Mono Switch in cord allows Stereo or Monaural headset operation Noise Reduction Power Consumption 50 mW nominal 1 5W peak per side dependent on noise level Microphone and Amplifier Element Type Noise canceling amplified electret Frequency Response 100 Hz 5000 Hz Sensitivity 51 3 dB ref 1 V ubar at 1 kHz with 12 150 ohm load Matching Impedance 50 600 ohms Gain Adjustment Range 5 dB clockwise rotation increases gain Operating Voltage supplied by aircraft radio 8 16 Vdc Microphone Interface Operates from a typical aircraft radio per RTCA DO 170 8 to 16 Volts DC with 470 ohm DC resi
3. 0564 002 Aircraft Power Module Catalog no 71046 002 Gel filled ear cushions package of 2 Catalog no 800027 002 Foam cushions package of 2 800027 003 Headband Pad 800198 001 Replacement electret microphone 800136 002 Windscreen electret 800456 000 Model PT 300 Push to Talk Switch Catalog no 63966 000 Zippered Pouch ss Catalog no 590061 003 Clothing Catalog no 590637 000 aircraft without a push to talk switch a portable push to talk switch must be used Page 6 LIMITED WARRANTY VALID ONLY UNITED STATES AND CANADA TELEX Communications Inc Telex warrants to the user who originally purchased the product delivered with this card that the product will be free from defects in material and workmanship for the following periods after such date of purchase Material 36 months workmanship 36 months Telex will at its option repair or replace free of charge such defective products subject to the following conditions 1 Delivery of the product or parts postage prepaid to the Telex dealer authorized service facility or factory 2 Determination by Telex that a defect exists and is covered by the lim
4. C 12000 Portland Ave S Burnsville MN 55337 U S A 38110 010 Rev 4 02
5. Telex Operating Instructions ce Echelon ANR 150 Headset TELEX ECHELON ANR HEADSET DETENTED SLIDERS ADJUST TO ANY HEAD SIZE COMFORT ADJUSTMENT KNOB UNIQUE KNUCKLE DESIGN REPLACEABLE WIDE HEAD PAD VOLUME NA EARCUPS PIVOT ON TWO PLANES TO CONFORM TO WEARER BATTERY MODULE AIRCRAFT POWER MODULE Optional Figure 1 Note See page 7 for available replacement parts General Description The Echelon ANR 150 is a medium weight aircraft communications headset It features electronic noise reduction circuitry for improved reduction of aircraft motor and wind noise The Echelon ANR 150 also features extended response receivers for improved sound reproduction from the aircraft radio and entertainment system The Echelon ANR 150 noise reduction system may be powered from either a battery module or an aircraft power module The battery module is designed for portable applications and uses one 9 volt battery Operating time with alkaline batteries is 40 hours minimum The aircraft power module is designed for permanent installation and provides power to the headset from the aircraft electrical system The aircraft power module works with negative ground electrical systems The Echelon ANR 150 headset features a stereo headphone plug and a stereo mono select switch The Echelon ANR 150 can be plugged directly into an aircraft radio for standard monaural communicati
6. also have other rights which vary from state to state HEADPHONES HEADSETS DO HAVE SERIAL NUMBERS ASSIGNED Page 7 CUSTOMER SERVICE For information or technical assistance call or write to Telex at Customer Service Department Telex Communications Inc 12000 Portland Ave So Burnsville MN 55337 U S A 952 884 4051 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 prepaid to Telex If requested an estimate of repair costs will be issued prior to service Once your approval for repair and repair of equipment is completed the equipment will be returned on a collect 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 Page 8 Notes TELEX TELEX COMMUNICATIONS IN
7. either a battery module or an aircraft power module The headset also has separate microphone and receiver plugs The receiver plug is a stereo type but a selector switch on the cord permits monaural operation Page 1 Microphone Bias Voltage Requirements The boom microphone requires a bias voltage of 8 16 VDC through 300 to 1000 ohms If you are uncertain whether your avionics equipment meets this requirement consult the avionics equipment manufacturer Optional Aircraft Power Supply Module The power supply module is designed for use in negative ground electrical systems only Do not attempt to use with positive ground electrical systems Cae Kl Installing a Battery in the Optional Battery Module The battery module requires one 9 volt battery Alkaline batteries are rec ommended for best performance Do not use nickel cadmium recharge able batteries or lithium batteries 1 Slide the battery door over in the direction of the arrow then up to remove the battery door 2 Snap the battery onto the battery connector and place the battery into the case 3 Slide the battery door back into place Page 2 Headset Operation 1 Connect the headset as shown in Figure 2 Set the MONO STEREO headphone switch to match the type of sound system in your aircraft TO BATTERY MODULE OR NM AIRCRAFT POWER MODULE 5 RADIO RECEIVER OUT JACK
8. ited warranty Defects due to alteration repair by an unauthorized person insertion of non Telex parts misuse accidental damage use of the equipment for purposes other than those for which it was designed and the like are not covered by this limited warranty and repairs thereof will be subject to normal service charges 3 Repairs and replacement parts are covered under this limited warranty only for the unexpired term of the original limited warranty 4 Products purchased from unauthorized dealers are not warranted 5 You must fill out and return the attached registration card within 10 days after such purchase or this limited warranty is void THIS LIMITED WARRANTY IS EXPRESSLY IN LIEU OF ANY EXPRESS OR IMPLIED WARRANTY INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WHICH EXTENDS BEYOND THE TERM HEREOF THE REMEDIES PROVIDED BY THIS LIMITED WARRANTY ARE THE ONLY REMEDIES AVAILABLE TO ANY PERSON NO PERSON HAS ANY AUTHORITY TO BIND TELEX TO ANY REPRESENTATION OR WARRANTY OTHER THAN THOSE PROVIDED BY THIS LIMITED WARRANTY TELEX SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY FAILURE OR OTHERWISE OF THE PRODUCT Some states do not allow exclusions or limitations of incidental or consequential damages or limitations on how long an implied warranty lasts so the limitations or exclusions herein may not apply to you This warranty gives you specific legal rights and you may
9. ons or into an intercom system wired for stereo entertainment FAA TSO C57a and C58a approved Design Features See Figure 1 Fit and Comfort A unique headband design distributes ear cushion pressure evenly over the entire ear with no pressure points unlike conventional designs which apply more pressure on the bottom of the ear than on the top An added advantage of this design is that the headset folds into an extremely compact shape for storage A clamp adjustment on each knuckle adjusts to provide greater noise reduction or greater comfort The earcups pivot on two planes to conform to any wearer Detented sliders adjust the headband for best fit on any head size A large head pad evenly distributes the headset weight on the head with no pressure points Comfortable foam filled ear cushions are standard Boom Microphone A flexible gooseneck boom permits precise microphone placement The boom rotates overhead to use the microphone on either side of the head The plug in microphone cartridge features a noise canceling electret ele ment The cartridge unsnaps for easy replacement A built in microphone amplifier electret version operates on current supplied by the aircraft radio via the microphone jack Cordage and Plugs The microphone cordage is protected inside the boom arm Shielded wire throughout the headset protects against RFI and EMI Strain reliefs on all cords provide maximum durability A separate plug connects the headset to
10. stance 150 ohm AC resistance Power To turn Power on and off simply plug or unplug the battery or Aircraft Power Module Batteries One 9 alkaline battery installed in the battery module ANR Battery Life 40 hours minimum Fail Safe Mode If battery power is too low for normal ANR operation or if the power module is disconnected the headset will perform like a standard headset maintaining communications with the aircraft radio Page 5 Cordage Headset Straight cord 6 ft 1 8 Aircraft Power Module Straight cord 3ft 0 9 m Headset Connections Power 3 5 mm 2 conductor right angle plug for connections to the battery module or aircraft power module Microphone 0 206 diameter plug PJ 068 equivalent Receiver PJ 055 equivalent plug for receivers Stereo mono selector switch in the cord Battery Module Connector 3 5 mm 2 conductor jack for connection to the headset Aircraft Power Module Connectors Input power from aircraft Straight cord 6 ft 1 8 m with 12V fused power plug adapter Output power to headset 3 5 mm 2 conductor jack Weights Headset with foam cushions 18 oz 560g Battery module with batteries 3 oz 85 g Aircraft Power Module 2 2 oz 62 9 Color Black Ordering Information Echelon ANR 150 Headset with electret mic battery module and carrying CASE Catalog no 300714 002 Battery MOdUIS 2 Catalog no 59
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