re how is a loopback connector made skcgoh tartarus uwa edu au shaw goh writes uwovax uwo ca wrote i need to know the pins to connect to make a loopback connector for a serial port so i can build one the loopback connector is used to test the serial port thanks for any help steve me too skcgoh tartarus uwa edu au in a pin serial loopback plug you need to connect the following pins pin to pin pin to pin pins and together pins and together pins and together pin to pin that should do it note that a lot of these pins are redundant in many implementations phil phil burg computer unit csiro division of entomology australia life a sexually transmitted disease with a mortality rate
