way back in the day when doing this with power cables....we used a "megger" that measured the isulation, etc but it wasnt on data cables...just power cables. But when you have only two cores, maybe thats what your after. Do a search on that term, see what you come up with. And there are several power guys on this list...im sure they will correct me if I am wrong with that term. Binu S Pillai wrote: Hello All I am looking for a system or vendor that can supply me a system to measure cable insulation measurment, wire resistance, and capacitance between the two core of wire in a cable. Are there any systems that give RS232 output directly. Binu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --------------------------------- Sucker-punch spam with award-winning protection. Try the free Yahoo! Mail Beta. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist