Instruction/ maintenance manual of the product 888TT Shure
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DTMF AIRCRAFT MICROPHONE The Shure Model 888TT is handheld, amplified, noise– cancelling DTMF communications microphone that is F AA Certified for aircraft application (TSO-C58a).
2 SPECIFICA TIONS T ype Electret condenser , noise canceling, with transistor pre- amplifier , DTMF signaling circuitry , illuminated keypad Frequency Response 200 to 4,000 Hz (see Figure 1) 500 1,000.
3 Microphone connector wiring is shown in the table below . Microphone Connector Wiring Pin Color Function Pin Color Function 1 N.C. 5 Black PTT Switch Ground 2 White Dc Bias (+), Audio Out 6 Red Audio Out (Ac coupled) 3 Y ellow PTT Switch 7 Drain Ground 4 Blue NC 8 N.
4 ENVIRONMENT AL QUALIFICA TION FORM, TSO-C58a DO-170 P ARA. # CONDITIONS DO-160C P ARA. # DESCRIPTION OF TESTS 3.1.1 Ground Survival Low T empera- ture and Operating Low T em- perature 4.5.1 Microphone tested to Category D1 3.1.2 Ground Survival High T emper- ature and Short-T ime Operat- ing High T emperature 4.
An important point after buying a device Shure 888TT (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Shure 888TT 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 Shure 888TT - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Shure 888TT you will learn all the available features of the product, as well as information on its operation. The information that you get Shure 888TT will certainly help you make a decision on the purchase.
If you already are a holder of Shure 888TT, 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 Shure 888TT.
However, one of the most important roles played by the user manual is to help in solving problems with Shure 888TT. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Shure 888TT 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
