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Subject: How to design LED circuit on Cat. 5 cable
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Date: 08/27/01 at 3:20 PM
Posted by: Rick
E-mail: simrr@a0l.com
Message Posted:
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My project is to have LED circuit on a Category 5 cable that would light up when the cable is plugged onto the wall jack and the system Hub. The lighted cable LED will indicate that the cable is good & a "link" has established between the source and the target. I do not need the data transfer activity indicator. Just the link.
I'm planning to use a small PCB (1" x .5") for this circuit. The LED's Vf = 2 volts & If = 25 mA. I need to use a watch battery (1.5 volts) so it will be small enough to fit it onto the cable (way behind the connector) to power up the LED. Any idea how I can wire up this design? Your help will be greatly appreciated. Thanks, Rick
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