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From: naftoli@aecom.YU.EDU (Robert N. Berlinger)
Newsgroups: comp.dcom.lans
Subject: Multi-mode or single-mode fiber -- which is best for FDDI?
Keywords: FDDI Fiber Ethernet LED Laser
Message-ID: <1573@aecom.YU.EDU>
Date: 24 Jan 88 03:52:34 GMT
Organization: Albert Einstein College of Medicine, NY
Lines: 20

We are going to be installing a fiber optic backbone, initially 
running Ethernet, but we want to migrate to FDDI as the standard 
is cured.  

Does a choice of multi-mode or single-mode fiber make a difference 
as far as FDDI?  In not, which is best for a lan (i.e., which 
will be the most popular, easy to buy hardware for, etc.)?  From 
what I read, most phone companies use mainly single mode for 
trunk lines (T4 and all that...).  

I understand that single-mode fiber requires a laser light source
(although this may be changing), but multi-mode only requires the
cheaper LED light source.

A clarification will be most appreciated.
-- 
Robert N. Berlinger					naftoli@aecom.yu.edu
Supervisor of Systems Support
Albert Einstein College of Medicine			Compuserve: 73047,741	
UUCP: ...{philabs,cucard,pegasus,rocky2}!aecom!naftoli	GEnie:	    R.Berlinger