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IEC TR 61 282 1 5 Edition 1 0 201 7 05 TECHNICAL REPORT Fibre optic communication system design guides – Part 1 5 Cable plant and l ink – Testing multi fibre optic cable plant terminated with MPO conn[.]

IEC TR 61 282- 1 5

Editio 1.0 2 17-0

Fibre opt ic communicat ion syst em design guides –

Part 15: Cable plant and l nk – Test ing mult i- fibre opt ic cable plant t erminat ed

w it h MPO connect ors

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IEC TR 61 282- 1 5

Edit io 1.0 2 17-0

Fibre opt ic communicat ion syst em design guides –

Part 15: Cable plant and l nk – Test ing mult i- fibre opt ic cable plant t erminat ed

w it h MPO connect ors

FOREWORD 4

INTRODUCTION 6

1 Sco e 7

2 Normative ref eren es 7

3 Terms, def i ition an a breviated terms 7

3.1 Terms an def i ition 7

3.2 Ab reviated terms 8

4 MPO con ectors 9

4.1 General 9

4.2 Keyin an f ibre p sition 9

4.3 Polarity 10 5 Test method an me s rements 12 5.1 General 12 5.2 At en ation 12 5.3 Polarity 12 5.4 L n th 12 5.5 Optical return los an reflectan e 12 6 Variation of test method 13 6.1 General 13 6.2 Optical l g t source 13 6.2.1 General 13 6.2.2 Source with MPO interace 13 6.2.3 Source with non-MPO interf ace an fan-out ca le 1

4 6.2.4 Source with non-MPO interf ace an o tical switc 14 6.3 Optical p wer meter 14 6.3.1 General 14 6.3.2 Meter with MPO interf ace havin multiple detectors 14 6.3.3 Meter with MPO interf ace havin large are detector 15 6.3.4 Meter with non-MPO interf ace an fan-out ca le 15 6.3.5 Meter with non-MPO interf ace an o tical switc 15 6.4 OTDR 15 6.4.1 General 15 6.4.2 OTDR with MPO inter ace 15 6.4.3 OTDR with non-MPO interace an fan-out ca le 16 6.4.4 OTDR with non-MPO interace an o tical switc 16 6.5 Other ada tation an ac es ories 16 6.5.1 Ada ters 16 6.5.2 Test cord 16 6.5.3 Optical switc 17 6.5.4 Polarity an pin ed/u pin ed c an ers 17 6.6 Vis al in p ction 17 7 Test config ration 17 7.1 General 17 7.2 LSPM with MPO interace 18 7.3 LSPM with non-MPO inter ace an fan-outs 19 Biblogra h 21

Fig re 1 – MPO con ector 9

Fig re 2 – Polarity for thre stan ard con g ration 1

Fig re 3 – Polarity for a bre kout cord 1

Fig re 4 – Ref eren e con ection for ca l n with u pin ed MPO plu s 18

Fig re 5 – Con ection for me s rements on typ A ca l n with u pin ed MPO

con ectors 18

Fig re 6 – Ref eren e con ection for tester with non-MPO plu s 19

Fig re 7 – Con ection for tester with non-MPO plu s 2

INTERNATIONAL ELECTROTECHNICAL COMMISSION

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example "state of the art"

IEC TR 612 2-15, whic is a Tec nical Re ort, has b en pre ared by s bcommite 8 C:

Fibre o tic s stems an active devices, of IEC tec nical commite 8 : Fibre o tic

The text of this Tec nical Re ort is b sed on the fol owin doc ments:

En uiry draft Re ort o v tin

Ful information on the votin for the a proval of this Tec nical Re ort can b f ou d in the

This doc ment has b en drafted in ac ordan e with the ISO/IEC Directives, Part 2.

A l st of al p rts in the IEC 612 2 series, publs ed u der the general title Fibre o t ic

c mmu ic tion system d esig g id es, can b fou d on the IEC we site

The commite has decided that the contents of this doc ment wi remain u c an ed u ti the

sta i ty date in icated on the IEC we site u der "htp:/ we store.iec.c " in the data related to

Ca l n testin stan ard s c as IEC 612 0-4-1 for multimode aten ation me s rements

an IEC 612 0-4-2 for sin le-mode at en ation an o tical return los me s rement des rib

testin simplex or d plex fibre ca l n terminated with sin le-f ibre fer ule con ectors (e.g

LC) This doc ment has b en writen to des rib me s rement method f or at en ation an

p larity an can b u ed in the a sen e of an multi- ibre testin stan ard

This doc ment ad res es the testin of in tal ed multimode an sin le-mode ca l n

terminated with multi- ibre con ectors of IEC 617 4-7 (al p rts) related to multi-ibre pu h on

(MPO) an des rib s the c al en es when testin ar ay con ectivity, whic p rameters are

imp rtant to me s re, an wh the test method of IEC 612 0-4-2 an IEC 612 0-4-1 can ot

b u ed

In tal ed o tical f ibre ca lng terminated with MPO interf aces can b tested in dif ferent way ,

f or example, with eq ipment havin an MPO con ector test p rt Testin u in other typ s of

eq ipment is p s ible, for example u in an o tical time domain ref lectometer (OTDR)

This doc ment f oc ses on MPO con ectors containin 12 f ibres in a sin le row; however,

man of the prin iples can also b a pl ed to testin of ca ln terminated with diff erent typ s

of MPO con ectors with a pro riate c an es to test cord an /or test eq ipment inter aces

FIBRE OPTIC COMMUNICA TION SYSTEM DESIGN GUIDES –

Part 15: Cable plant and l nk –

Testing multi-fibre optic cable plant terminated with MPO connectors

This p rt of IEC 612 2 provides g idan e f or the testin of multi- ibre ca le, multimode or

sin le-mode, terminated with plu s des rib d in IEC 617 4-7 (al parts) (multiple-f ibre pu h

on – MPO) Guidan e is provided on the me s rement of at en ation, p larity, len th an

o tical return los The cabl n can b in tal ed in a variety of en ironments, in lu in

residential, commercial, in u trial, an data centre premises, an p s ibly in outside plant

en ironments

The f ol owin doc ments are ref er ed to in the text in s c a way that some or al of their

content con titutes req irements of this doc ment For dated referen es, only the edition

cited a ples For u dated ref eren es, the latest edition of the ref eren ed doc ment (in lu in

an amen ments) a pl es

IEC 612 0-4-1, Fibre-o tic c mmu ic t ion su system t est pro ed ures – Part 4-1: Install ed

c ble pl ant – Mul timod e atten atio me sureme t

IEC 612 0-4-2, Fibre-o tic c mmu ic tion su system t est pro ed ures – Part 4-2: Instal l ed

c bl e pl ant – Single-mod e att en ation a d o t ic l return l os me surement

3 Terms, def initions and abbreviated terms

3.1 Terms a d def initions

For the purp ses of this doc ment, the f ol owin terms an definition a ply

ISO an IEC maintain terminological data ases f or u e in stan ardization at the fol owin

ad res es:

• IEC Electro edia: avai a le at ht p:/ www.electro edia.org/

• ISO Onl ne browsin platf orm: avai a le at htp:/www.iso.org/o p

in/P

o t)

where P

in

o tare the p wer, typical y me s red in mW, into an out of the ca l n

comp nent con istin of two plu s mated together in an ada ter, f or the purp se of providin

f req ent o tical intercon ection/dis on ection of o tical fibres or ca les, b twe n two ca les,

or a ca le to an a p ratu

3.1.5

e circle flux

f raction of c mulative ne r field p wer to total output p wer as a fu ction of radial distan e

f rom the o tical centre of the core

3.1.6

la n h cord

test cord u ed to con ect the l g t source to the ca ln u der test

3.1.7

l ght sourc power meter

test s stem con istin of a l g t source (LS), p wer meter (PM) an as ociated test cord

u ed to me s re the aten ation of in taled ca le plant

3.1.8

MPO conne tor

multi-f ibre comp nent con istin of pin ed or u pin ed plu an matin ada ter, normal y

atac ed to an o tical fibre ca le, for the purp se of providin hig den ity termination

ca a i ty, an feq ent intercon ection or dis on ection

terminated o tical f ibre cord u ed to con ect the o tical source or detector to the ca l n , or

to provide s ita le inter aces to the ca l n u der test

Note 1 to e try Th re are two ty e of te t c rd :

– la n h c rd;

– re eiv c rd

3.2 Abbre iate terms

APC an led ph sical contact (des ription of plu p l s )

LED l g t emit in diode

LSPM l g t source p wer meter

MPO multiple- ibre pu h on

OTDR o tical time domain ref lectometer

PC ph sical contact (des ription of plu p l s )

VF vis al fault locator

OPM o tical p wer meter

OLTS o tical los test set

4 MPO connectors

A multi- ibre pu h on (MPO) con ector is a multi- ibre device, u ed with rib on ca les, that is

defined in IEC 617 4-7 (al p rts) Plu s f or multimode have flat en f aces, where s sin l

e-mode plu s have an led en faces to minimize b c ref lection These plu s are keyed an

u e a large rectan ular plastic f er ule The plu s can b either pin ed or u pin ed The MPO

plu s rely on the pin an cor esp n in holes to al g the f ibres An ada ter is u ed f or

f urther al g ment an to hold two MPO plu s in a fixed p sition (se Fig re 1)

Figure 1 – MPO conne tor

4.2 Ke ing a d fibre p sitions

Testing an in tal ed o tical f ibre plant terminated with MPO plu s req ires k owled e of the

inter ace b twe n the test eq ipment an the ca l n u der test Intermate bi ty b twe n 12-

an 16-ibre p sition MPO plu s can compl cate testin as can the n mb r of rows There are

two diff erent fibre o tic intermate bi ty stan ard : one for a 12-f ibre p sition MPO plu as

The 12- an 16-ibre p sition MPO plu s are

not intermate ble d e to keyin Althou h a 12-way con ector is mec anical y intermate ble

with a 12-way con ector, the n mb r of fibre rows contained in e c plu s al matc The

same is true for the 16-way con ector

MPO plu s can b one of two typ s: pin ed or u pin ed The plu interf aces are con g red

as a version without pin an another typ with pin The u pin ed plu is intermate ble with

the pin ed plu Some plu s can b adju ted f or either typ

The fibre p sition in an ar ay plu are ref er ed to as position 1 throu h N, where N is the

n mb r of fibre p sition in the plu When viewin the plu en -on with the key-way on to ,

p sition 1 is the left-most fibre p sition, an N is the rig t-most fibre p sition Multi- ibre

ca l n an con ectors can vary in fibre p sition An examples s own in this doc ment are

with 1 x 12-p sition test cord

Keyin an f ibre p sition also have a sp cif i con g ration on an led ph sical contact (APC)

MPO plu s u ed with sin le-mode multi- ibre ca l n For sin le-mode ca l n terminated with

APC plu s, it is es ential to k ow if key-up/key-up or key-up/key-down ada ters an test

cord are u ed

NOT It is n rmal f or th sin le-mo e fer ule to b "u a gle ", ie th hig e t p rt of th ferule is o th s me

sid a th k y; h we er, it is als p s ible for th ferule to b "d wn a gle ", with th slo e ru nin th oth r

wa

4.3 Polarity

IEC stan ard des ribin MPO con ectors can u e diff erent p larity nomen lature than other

stan ard b dies Eq ivalent p larity nomen latures are s own in p renthesis b low:

• key-up to key-down ( yp A)

• key-up to key-up ( yp B)

• key-up to key-down, p ir wise f lip ( yp C)

For the sake of simpl city, the typ of p larity, A, B, or C is u ed in the des ription b low

The p larity of the con ection b twe n the meter an source can have several

config ration an can b in icated on the p wer meter as "A", "B", an "C" or other common

p larity typ s not stan ardized In some cases, an alternate typ is neces ary

For testers ca a le of identifyin p larity, the p larity is s own on the meter when the source

is selected to s an al fibre p sition an al fibres are con ected pro erly or impro erly

1) One of thre p larity types: The connection u e a stan ard method, key-up to key-down

( yp A), key-up to key-up ( yp B), or key-up to key-down p ir wise f lip ( yp C) In this

case, the tester s ould identify the p larity (se Fig re 2)

2) Un nown p larity: The con ection do not u e a stan ard method, one or more fibres are

not con ected, or the source p larity s an er is off In this case, somethin may b wron

with the ca l n , so the tester can ot determine the p larity However, al thre cases do

not neces ari y in icate an er or in the ca l n

3) Alternate p larity: The con ection are made to a b x wherein a bre kout ca le, also

k own as a fan-out cable, is u ed (se Fig re 3)

Figure 2 – Polarity for thre sta dard config rations

Fig re 3 – Polarity for a bre kout cord

IE C

So rc c a n l 1 2 3 4 5 6 7 8 9 10 1 12

Meter c a n l 1 2 3 4 5 6 7 8 9 10 1 12

Ke -d wn1