Thanks for the reply! This is a temp setup for testing a monitoring circuit on a different pair. It would only be used during this test. Both ends would know about when the other is going to be there. One end of the communication would be an electical engineer and the other a technican with limited electronics knowledge. Speed and ease of use would be the keys to this soulution. Cost would also be a consideration, but ten units under 2-3k$ would likly be a deal maker.

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Mark


Mark