Path: utzoo!utgpu!watserv1!watmath!att!tsdiag!davet From: davet@tsdiag.ccur.com (Dave Tiller N2KAU) Newsgroups: sci.electronics Subject: Re: tapping into a fiber optic cable Message-ID: <994@tsdiag.ccur.com> Date: 1 Jun 90 13:03:09 GMT References: <46249@iuvax.cs.indiana.edu> <151@coplex.UUCP> Organization: Concurrent Computer Corp. Oceanport NJ Lines: 21 In article <151@coplex.UUCP> dannie@coplex.UUCP (Dannie Gregoire) writes: -beckman@iuvax.cs.indiana.edu (Peter Beckman) writes: - ->Can a fiber optic cable be "tapped" into without disturbing the data ->being transmitted? I would like to run some fiber optic cable through - -If I recall correctly, it can be tapped without distubing transmitted data. - -I remeber reading an article in Info World about a year ago about just such -a method. It seems that if you bend a FO cable at more than 90 degrees -that about 20% of the signal will "bleed" out of the cable at the bend. But since this is to be used for a security system, wouldn't this 20% loss of signal be noticed? I think this is an excellent idea! I just happen to have some low-grade plastic fiber laying around - I think I'll use it! -- David E. Tiller davet@tsdiag.ccur.com | Concurrent Computer Corp. FAX: 201-870-5952 Ph: (201) 870-4119 (w) | 2 Crescent Place, M/S 117 UUCP: ucbvax!rutgers!petsd!tsdiag!davet | Oceanport NJ, 07757 ICBM: 40 16' 52" N 73 59' 00" W | N2KAU @ NN2Z