Hello, I have about 6 boards that will reside on an I2C bus. In addition, they are all to be powered from the same source and have other lines in common (D1W bus, emergency stop signal, etc...). In total there is 9 lines common to each board. All boards together will draw around 2A, but no board will take more than 500mA. I know that most connectors have ratings for maximum current per pin. Should I find a connector that can handle 2A (as 2A will be flowing by the pin, but not through it)? What are common connectors used to makes a multi-drop wiring harness? Right now, I am looking at using and IDE style harness (i.e. what is commonly found in a computer to connect the IDE port to a HD and CD-ROM). Specifically, the GW Industries Socket Connectors (digikey # CSC16T). Is this a common/good way to go? I have no experience with this so any and all comments are appreciated. Also, are there some "rules of thumb" on how to layout the signals. For example, I will have +5V, +12V, -12V, ground, a digital I/O signal, and an analog signal in the lines. Should all the power signals be together and seperated for the analog signal? or is it best to keep ground seperated from the other power lines? Thanks, Donovan Parks -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu