Re: fiber budgets

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#186

From: David Turner
Date: Tue, 15 Sep 1992 19:27

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In article <1992Sep14.152831.11360@alw.nih.gov> merike@alw.nih.gov (Merike Kaeo) writes:
>In designing an FDDI net we used to use the following design specs:
>1dB max loss per mated ST connector pair and .5dB max loss per splice.
>I'm beginning to wonder if this is ultra-conservative and am toying
>with the idea of changing that to .5dB max per mated connector pair
>and .2dB max loss per splice (mechanical).  I figure a 2dB margin in
>the budget will take care of any slop.  We do a tight QA on all
>installations and from what I've seen in terms of connector loss the
>.5dB max is reasonable.
>
>What are other folks doing?  Comments?
>


I use to make up fiber and FDDI connections.  I have installed several
FDDI LAN's including AMD's ANTC.  Typical connector loss should not exceed
.7dB.  I was able to achieve a loss of less then .3dB at the connector on
most of my work.

Regards,

Dave Turner

-- 
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David P. Turner         Internet: turner@ctron.com
Cabletron Systems Inc.  Compuserve: 76702,1733
Voice: (603) 335-9400   E-mail Cabletron Support Internet - support@ctron.com

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From: turner@ctron.com (David Turner)
Newsgroups: comp.dcom.lans.fddi
Subject: Re: fiber budgets
Message-ID: <5060@balrog.ctron.com>
Date: 15 Sep 92 19:27:18 GMT
References: <1992Sep14.152831.11360@alw.nih.gov>
Sender: usenet@balrog.ctron.com
Reply-To: turner@olympus.ctron.com (David Turner)
Organization: Cabletron Systems INc.
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