3M A125 installation instructions Important installation notice

***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 individual ribbon cable plugs. The wider ribbon cable plug(s) are too wide to fit into the blue 20-pin base station receptacle. The receptacle on the wireless base station board must be trimmed and the ends opened. Use a sharp razor knife and make four vertical cuts. Fold the ends of the blue receptacle down as shown below.

Caution - Be careful to not cut any components or circuit traces on the base station circuit board. Caution - Be careful to pull only on the ribbon connector plug. Pulling on the ribbon cable itself may cause it to separate from the plug.

Instructions for trimming and opening the base station receptacle:

1.Make a vertical cut at each corner of the blue 20-pin receptacle on the base station circuit board.

2.Fold the short end sides down as shown

3.Carefully insert the ribbon cable plug(s) into the blue receptacle. The locking tab will not engage and should not be a problem.

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