ICE
Serial Products => ICE-TEN => Topic started by: ahteric on August 04, 2005, 08:30:38 pm
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I need to wire a 9-pin adapter to hook to a pc so we can use ICE-TEN on the pc. The adapter has an RJ12 (6-pin) connection on one end and 9-pin serial on the other. I think pins 2 and 3 are straight-thru, but don't know for sure and don't know what other pins need to be used. Thanks for any help.
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Unfortunately there is no standard for RJ to 9 pin adapters. On the 9 pin you will need to use pins 2, 3 and 5. If you are wiring both ends you can make a sort of universal adapter by wiring the ground (pin 5 on a 9 pin connector, pin 7 on a 25 pin connector) to the 2 outside wires on the RJ, pin 2 to the next 2 inner wires and pin 3 to the center 2 wires. This way it won't matter if your cable reverses the connection or not (of course, this requires that the cable itself use all 6 pins). You may have to swap the wiring of pins 2 and 3 on the multiport end depending on if it's using 9 or 25 pin connectors and whether it's wired as DTE or DCE.
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Thanks, I opened up one of the adapters and followed the pinout, which worked. Thanks for the universal info too! :D