Instruction/ maintenance manual of the product Stratus 50 Telex
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User Instructions Te l e x ® Stratus 50 Digital Active Noise Reduction Headset.
Figure 1 Stratus 50 Digital Ref erence 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 re- ceived, including interference that may cause un- desired operation.
Page 1 General Description The T elex S tratus 50 Digital is a medium-weight, active noise-reduction headset with boom-mounted microphone. It provides up to 25+dB patented digital tonal noise reduction of engine and blade noise, up to 15+dB of analog broadband noise reduction, and 29+dB of passive noise reduction.
Auto Shut-Off The S tratus 50 Digit al contains noise-sensing features to measure ambient noise levels. When ambient noise levels are low for 5 to 7 minutes continuously , the headset automatically shuts off. This feature will prolong battery life and prevent discharge of batteries if the headset is accidentally left on after use.
Headset Power The headset will operate with either 4 AA batteries or p anel power from 8-32 Vdc. Panel Power Option An optional power cord is provided for use in negative ground electrical systems only . Do not attempt to use with positive ground electrical systems.
Page 4 Figure 6 Mic Element Remov al Figure 5 Microphone Placement Figure 7 Mic Placement Headset Operation (cont.) 2. Connect the headset as shown in Figure 4. If using the standard version, set the stereo/mono headphone switch to match the type of sound system in your aircraft.
Page 5 Figure 8 Headband Pressure Adjustment HIG H MED IUM LOW KNOB ADJUSTMENT SETTI NGS Headset Operation (cont.) 8. 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 (See Figure 9 on the next page).
Page 6 11 . V olume 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 (Figure 10).
Stratus Controls Power Switch the ON/OFF button to turn the S tratus on or off. Green LED indicates power on. Low Battery Red LED indicates 20 percent or less battery life remaining.
Page 8 Wiring Diagram Figure 13 Standard V ersion RED BLK SHLD . 2 0 6 DI A. MI CROPHONE P L UG RED BLK SHLD . 25 0 DI A. SPEAKE R PL UG SPKR - L SPKR - R SPKR - GND MI C + MI C - BLUE WHITE.
Page 9 Specifications Receivers: T ype: Dynamic Frequency Response: 50 Hz - 10 kHz Sensitivity: 95 ± 5 dB SPL (1 kHz, 1 mW input) Impedance (Max. V olume): S tereo.........................................300 ohms per side Monaural....................
Page 10 Ordering Information S tratus Headset, with electret mic, battery module, and carrying case (Dark Grey/Black) Catalog no. PRD000010000 Aircraft Power Cord ........................................................ Catalog no. 550216001 1” Foam-filled ear cushions (package of 2) .
Page 1 1 TELEX COMMUNICA TIONS, INC. - LIMITED W ARRANTY Uniform Limited Warranty: T elex branded product s are warranted by T elex Communications, Inc.
Page 12 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 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.
Page 13 Notes.
LIT000010 Rev A 04/2006 www.telex.com/aircraft.
An important point after buying a device Telex Stratus 50 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Telex Stratus 50 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Telex Stratus 50 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Telex Stratus 50 you will learn all the available features of the product, as well as information on its operation. The information that you get Telex Stratus 50 will certainly help you make a decision on the purchase.
If you already are a holder of Telex Stratus 50, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Telex Stratus 50.
However, one of the most important roles played by the user manual is to help in solving problems with Telex Stratus 50. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Telex Stratus 50 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
