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  1. #3
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    Quote Originally Posted by BestRadarDetectors View Post
    External LED can not be dimmed on first generation CPU's. If you need to extend it you can try to find a coupler and a short additional cable.
    The cable that is used for the LED appears to be RJ22 also know as RJ9 or, RJ10. There is actually no official designation for it, hence it goes buy a couple of different designations depending on the vendor. This type of cable is 4P4C and uses the standard 4 pin modular connector which is used to connect phone handsets to the base unit. NOT the RJ11 cable and connector which is used to connect the base unit to the wall. Also, and VERY important for this application you can not use a standard hand set RJ22 cable to extend your ALP LED RJ22 cable. This is because phone RJ22 reverses the pin order from one end of the cable to the other. So, for example at one end, black is pin 1, but at the other yellow is pin 1. For data transmission and I believe for this application, you want a cable which is, "straight through," or, "pin 1 to pin 1." The color wires in the 4 pin RJ22 are, starting from pin 1: black, green, red, yellow. I am going to use a 3 ft RJ22 pin 1 to pin 1 cable with a RJ22 female to female coupler. The standard ALP LED cable is approximately 58" long. Add 36" for the extension plus 1" for the coupler. That brings the combined length to 95" or, 7.97 ft. My two questions that maybe you could answer Tom: 1) Am I correct, that the ALP LED uses RJ22 straight through, pin1 to pin 1 cable and, 2) will there be enough voltage to overcome the additional resistance associated with the longer cable length? Thanks
    Last edited by itwasntme; 09-25-2015 at 12:21 PM.

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