Technical Bulletin

ManualsBrandsPanduit Manuals& CordOM4 12-fiber round harness cable, plenum

web: www.panduit.com  e-mail: cs@panduit.com  phone: 800-777-3300  page

TECHNICAL REFERENCE

TR12

UtilizationofHarnessCableAssemblies

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Introduction

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Networkscomprisedofswitches,servers,andstorageelementsmustworkinunisontotransportimportant

informationintheformofdatatraffic.Breakoutharnessesareusedtoreducecablemanagementattheactive

elementsaswellasprovidingameansofbreakingouttechnologieswhennecessary.Panduitoffersseveral

types

ofbreakoutharnessesthatcanbeutilizedindifferentcablingscenarios.

8‐fiberStandardHarness

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The8Fharnessiswiredwithfibers1,2and11,12darkorunused.Theseharnessesaretypicallyusedwith

switchbladesconfiguredwitheightfiber(4port)groupings.Alongwiththeseswitchbladetypes,these

harnessesarerecommendedtobeusedwithotherbaseeightPanduitfiber

solutions(Seeexamplebelow).

ThesesolutionsincludeanyoftheBase8HighDensityFibercassettesthatareconstructedusingthe8Fharness.

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Summary of content (6 pages)

PAGE 1
TECHNICAL REFERENCE TR127 Utilization of Harness Cable Assemblies Introduction Networks comprised of switches, servers, and storage elements must work in unison to transport important information in the form of data traffic. Breakout harnesses are used to reduce cable management at the active elements as well as providing a means of breaking out technologies when necessary. Panduit offers several types of breakout harnesses that can be utilized in different cabling scenarios.
PAGE 2
TECHNICAL REFERENCE TR127 12‐fiber Standard Harness The 12F harness is wired with fibers grouped in or 1, 2; 3, 4; etc. These harnesses are typically used with switch blades configured with twelve fiber (6 port) groupings. Along with these switch blade types, these harnesses are recommended to be used with all other MPO base twelve cassettes and assemblies. web: www.panduit.com  e-mail: cs@panduit.
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TECHNICAL REFERENCE TR127 8‐fiber Flipped Harness The 8F flipped harness is wired with LC duplex fibers 1, 2 and 11, 12 dark or unused and the other fiber pairs transposed (4, 3; 6, 5; 7, 8, 10, 9). These harnesses are used in an 8F link when the TX and RX needs to be flipped and flipping a duplex LC patch cord is not an option or in a harness to harness scenario as shown below. web: www.panduit.com  e-mail: cs@panduit.
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TECHNICAL REFERENCE TR127 12‐fiber Flipped Harness The 12F harness is wired with the LC duplex fibers transposed or 2, 1; 4, 3; etc. These harnesses are typically used in a Method A Array cabling scheme when the TX and RX needs to be flipped and flipping a duplex LC patch cord is not an option or in a harness to harness scenario as shown below. web: www.panduit.com  e-mail: cs@panduit.
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TECHNICAL REFERENCE TR127 12‐fiber Array Flipped Harness The 12F array flipped harness is wired with the LC duplex fibers flipped in the array. Fibers 11, 12 are now wired on leg 1; fibers 9, 10 are wired in leg 2, etc. These harnesses are typically used in a Method B Array cabling scheme when entire array needs to be flipped in order to line up the TX and RX on the opposite end of the cabling scheme. web: www.panduit.com  e-mail: cs@panduit.
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TECHNICAL REFERENCE TR127 8‐fiber 4 to 1 Conversion Harness The 8F 4 to 1 conversion harness is wired with the LC duplex matched with the individual transmit and receive signals delivered by any SR4 type transceiver. In the SR4 transceiver, fibers 1‐4 are TX fibers and 9‐12 are RX fibers. In the harness, fibers 1, 12; 2, 11; 3, 10 and 4, 9 are matched to provide proper TX, RX alignment at the duplex LC level.