Instruction/ maintenance manual of the product A125 3M
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Noise Reduction Module Model A125 Installation Instructions Description The 3M A125 Noise Reduction board (3M part number 78-9236-6453- 2) improves the inbound intelligibility of an intercom system by reducing environm ental backgrou nd noise from vehicles, airplanes, noisy intersections, wind, etc.
2 ***Important installation notice*** Starting with serial number 125002477, the A125 Noise Reduction Module, Internal has a wider ribbon cable plug. A limited number of these Noise Reduction Modules have two indivi dual ribbon cable plugs. The wider ribbon cable plug(s) are too wide to fit into the blue 20-pi n base station receptacle.
3 System Configuration The A125 Noise Reduction board is configured by two jum per switches, (JMP1 and JMP2), shown in Table 1. Jumper Position Position A Position B JMP1 * Separate microphone & s.
4 Status Indication The condition of the red LED on the 3M C960 base station indi cates the current status of the unit. The LED can be off, blink at defined intervals, or be constantly lit.
An important point after buying a device 3M A125 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought 3M A125 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 3M A125 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, 3M A125 you will learn all the available features of the product, as well as information on its operation. The information that you get 3M A125 will certainly help you make a decision on the purchase.
If you already are a holder of 3M A125, 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 3M A125.
However, one of the most important roles played by the user manual is to help in solving problems with 3M A125. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device 3M A125 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
