A quick thanks to all who responded to my request for info... Thanks to Richard for his safety warnings. I had no idea that glass fibre could be so nasty. Thanks to Shawn and Dwayne for their pointer to Industrial Fiber Optics at www.i-fiberoptics.com their catalog was just what I was looking for... Also I found that the Farnell catalog has quite a range of fibre components. Also Agilent has a relatively low cost Evaluation kit for their "Versatile Link" series. Any more pointers gratefully received please. Thanks again ........... Zim -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body