[187726] in North American Network Operators' Group
RE: APC vs UPC?
daemon@ATHENA.MIT.EDU (Jameson, Daniel)
Tue Feb 23 09:40:29 2016
X-Original-To: nanog@nanog.org
From: "Jameson, Daniel" <Daniel.Jameson@tdstelecom.com>
To: Lorell Hathcock <lorell@hathcock.org>, "nanog@nanog.org" <nanog@nanog.org>
Date: Tue, 23 Feb 2016 14:40:01 +0000
In-Reply-To: <35EF9A4B-B9A1-485C-A8FA-06B5236B511E@hathcock.org>
Errors-To: nanog-bounces@nanog.org
Most SFP/XFP have upc connectors until you get above 5(ish) db of power, t=
hen you'll start to see APC and/or E2000 connections. You'll end up using=
a hybrid jumper (APC one end, UPS on the other). If you're looking for =
quality jumpers look at Clearfield or Corning. ADC makes tracelite jumpers =
that illuminate if that's part of your need. You should only see a .1-.2 d=
b increase in loss for an APC connecter vs a UPC connector.
-----Original Message-----
From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Lorell Hathcock
Sent: Tuesday, February 23, 2016 7:12 AM
To: nanog@nanog.org
Subject: APC vs UPC?
NANOGians:
APC wins!
My real question is surrounding the connection on the SFPs themselves.=20
In general terms are the LC connectors on SFPs considered UPC or APC?
If the answer is UPC and if I am inheriting and/or building a network of si=
ngle mode fiber with APC SC connectors, then is the best practice to use LC=
UPC to SC APC fiber jumpers?
If so, can anyone point me to a source for said jumpers that is (1) quick a=
nd (2) good?
Any thoughts on the same idea of mismatched fiber jumpers connector types t=
o use on OLMs and OLSs? OTDRs? The concern here is to use the best possib=
le fiber connector types (e.g. APC or UPC) when connecting lasers to my OSP=
fiber which uses APC with consideration to the optimal connector type for =
the laser transceiver.=20
My thoughts are to use fiber jumpers with UPC connectors on the laser side =
with APC on and throughout the OSP, but if it should be purely APC everywhe=
re, then that is what I need to know.=20
Thanks!
Lorell Hathcock
