you only need tx, rx, and common. no flow control. period. set baud to 115200. DB9 RJ45 3 ------- 3 5 ------- 4 |-------- 5 2 ------- 6 RJ45M pins 4&5 tied together to pin 5 of DB9F i'm using older cisco DB9F/RJ45F adapter with the "rolled" blue RJ45M/RJ45M cable. what is posted above ...