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Conference 7.286::fddi

Title:	FDDI - The Next Generation

Moderator:	NETCAD::STEFANI

Created:	Thu Apr 27 1989
Last Modified:	Thu Jun 05 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	2259
Total number of notes:	8590

1803.0. "Fiber connector trends??" by ANGLIN::BERNDT () Thu Sep 07 1995 17:20

    This is probably a "dumb" question, and although I looked through this
    notes file I couldn't find a specific answer...
    
    Can anyone generalize on the type of connector(s) that our FDDI (and
    ATM) products are using now for: 1)single mode 2)multimode.
    
    It appears we are moving to SC connectors for both?? A business
    acquaintance has asked. They just installed a huge FDDI ring in the
    Chicago area for Cable TV industry "Ad Insertion" and want to make sure
    they have the right tools and connectors for use with our great FDDI
    products...   Thanks in advance...  Ron Berndt  - Sales Engineer

T.R	Title	User	Personal Name	Date	Lines
1803.1		NETCAD::STEFANI	Machines to humanize	`Thu Sep 07 1995 19:09`	14
	>>Can anyone generalize on the type of connector(s) that our FDDI (and >>ATM) products are using now for: 1)single mode 2)multimode. You know how dangerous generalizations can be! :-) For the multimode products (eg. adapters) we use ST, MIC, and SC connectors. There seems to be a migration towards SC, but it really depends on the product, so unless your customer is willing to use patch cords to go from one connector to another, I'd find out exactly which products they intend to use, and where before ordering cable. You can then look up our product set and see which connector our adapters, routers, and switches come with. /l
1803.2	Thanks for the reply Larry.	ANGLIN::BERNDT		`Mon Sep 11 1995 15:48`	2
	Thanks Larry!
1803.3	Are you starting from scratch or is a new installation?	STEVMS::PETTENGILL	mulp	`Tue Oct 17 1995 22:59`	47
	For an existing installation, you are probably using ST at the SER to do the patching. Unless additions are separate, you probably want to continue using ST for patching. For an existing lab and probably for existing office space, you are probably using MIC. My choice is to continue using MIC in the lab (glass house) because space isn't an issue and the covers on the MIC outlets close automatically. Also, uniformity is important because we have lots of equipment moves. For the office area, I wouldn't use fiber at all; I'd go, and am going all UTP with cat-5 for everything. What's going in here for new installs is three cat-5 UTP plus 1 phone per office. This will allow for any combination of terminal, ethernet, fast ethernet, fddi, or atm for just about whatever you can power in an office. If I were doing a new SER, I'd go SC because it is easier to handle than ST or MIC and more dense. However, even tho SC is more dense, I'd space out the patch more than what we've done with ST. I highly recommend providing for cable management, although I haven't found any that I really like for our rather dynamic requirements. For a new lab, I'm not sure if I'd go SC or stick with MIC. Given the longer distances required in the lab, there's no major advantage in being uniform since the short cables will be patch and the long cables from the system to drop. If the drops are hung from cable trays, MICs almost certainly have the advantage in terms of staying connected under strain. Obviously, SC is being used where space is a premium, like on adapters. So, for fiber, I guess I rank them SC MIC ST but then I don't have to pay for them. On price they rank ST MIC SC (low to higher). UTP is a lot simpler until you start considering UTP or ScTP (screened TP). Or where you put the twist? Or T568A or T568B? Or more basically, UTP/ScTP/STP versus fiber. Play it safe: Put in all combinations. ;-)