IEC TR 62627 01 Edition 2 0 201 6 01 TECHNICAL REPORT Fibre optic interconnecting devices and passive components – Part 01 Fibre optic connector cleaning methods IE C T R 6 2 6 2 7 0 1 2 0 1 6 0 1 (e[.]
Trang 1IEC TR 62627- 01
Editio 2.0 2 16-01
Fibre opt ic int erconnect ing devices and passive component s –
Part 01: Fibre opt ic connect or cleaning met hods
Trang 2THIS PUBLICATION IS COPYRIGHT PROTECTED
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Trang 3IEC TR 62627- 01
Edit io 2.0 2 16-01
Fibre opt ic int erconnect ing devices and passive component s –
Part 01: Fibre opt ic connect or cleaning met hods
INT ERNAT IONAL
ELECT ROT ECHNICAL
Trang 4FOREWORD 4
1 Sco e 6
2 Normative ref eren es 6
3 Terms an def i ition 6
3.1 Cle ners 6
3.2 Optical con ector p rts 7
4 Ap lcation of o tical con ectors 8
4.1 General 8
4.2 Influen e of contamination of o tical con ector en - aces 8
5 Care in han l n o tical con ectors 8
5.1 General
8 5.2 Storage of o tical con ectors 8
5.3 Con ection of o tical con ector plu s to p rts on o tical network eq ipment 8
5.4 Dis on ection of o tical con ector plu s to p rts 8
6 Du t ca s 8
7 Cle nin to ls an mac ines 9
7.1 General 9
7.2 Re l typ cle ner 9
7 3 Stic typ cle ner
9 7.4 Pen typ cle ner 10 7.5 Ad esive b c ed stic typ cle ner 10 7.6 Gas an vac um cle nin mac ine 1
7.7 Air d ster 1
7.8 Tis ue an solvent, wet cle nin 12 8 Optical con ectors an their a pl ca le cle nin to ls an mac ines 12 9 Proced res 12 9.1 General 1
2
9.2 Basic proced re of cle nin 12
9.3 Proced re to cle n exp sed plu en - aces with a re l typ cle ner 13
9.4 Proced re for p rt cle nin u in a stic typ or a p n typ cle ner 13
9.5 Proced re f or p rt cle nin u in an ad esive b c ed stic typ cle ner 15
9.6 Cle nin proced re u in a gas an vac um typ cle nin mac ine 15
An ex A (informative) Precaution f or the cle nin proces 16
A.1 Material to b cle ned 16
A.1.1 Plu con ector 16
A.1.2 Plu con ector in ide ada tors 16
A.1.3 Ada tor f or a c l n rical f er ule plu 16
A.1.4 Timin of the cle nin 16
A.2 Ad itional information 16
An ex B (informative) General inf ormation on contamination 18
B.1 Imp ct of contamination 18
B.1.1 General 18
B.1.2 Hig p wer levels 18
B.1.3 Hig data rates 18
B.2 Source of contamination 18
Trang 5B.2.1 Mis an l n 18
B.2.2 En ironmental sources 19
B.2.3 Contamination travels 19
B.2.4 Contamination migration 19
B.3 Pro lems d e to en - ace contamination 2
B.3.1 Sig al degradation 2
B.3.2 Permanent damage 21
An ex C (inf ormative) Example of in p ction eq ipment 2
Biblogra h 2
Fig re 1 –Example of a re l typ cle ner 9
Fig re 2 –Example of stic typ cle ners 10 Fig re 3 –Example of a p n typ cle ner 10 Fig re 4 – Example of an ad esive b c ed stic typ cle ner 1
Fig re 5 – Example of a gas an vac um cle nin mac ine 1
Fig re 6 – Example of an air d ster 1
Fig re 7 – Cle nin with a re l typ cle ner 13 Fig re 8 – Cle nin p rts u in a stic typ cle ner 14 Fig re 9 – Cle nin p rts u in a p n typ cle ner 14 Fig re B.1 – Typical examples of contamination 19 Fig re B.2 – Res lts of matin 19 Fig re B.3 – Contamination migration 2
Fig re B.4 – Sig al degradation d e to contamination 2
Fig re B.5 – Permanent damage d e to contamination 21
Fig re C.1 – Patc -cord in p ction an p rt in p ction 2
Ta le 1 – Ap l ca le cle nin to ls an mac ines f or typical o tical con ector p rts 12
Trang 6INTERNATIONAL ELECTROTECHNICAL COMMISSION
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IEC TR 6 6 7-01, whic is a Tec nical Re ort, has b en pre ared by s bcommite 8 B:
Fibre o tic intercon ectin devices an p s ive comp nents, of IEC tec nical commite 8 :
Fibre o tic
This secon edition cancels an re laces the first edition publs ed in 2 10 This edition
con titutes a tec nical revision
Trang 7This edition in lu es the f ol owin sig ificant tec nical c an es with resp ct to the previou
edition:
a) restru ture of clau es;
b) addition of some terms an definition ;
c) addition of inf ormation on cle nin to ls an mac ines;
d) addition of inf ormation on d st ca s;
e) ad ition of a pl ca le cle nin to ls an mac ines for o tical con ectors
The text of this Tec nical Re ort is b sed on the f olowin 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
re ort on votin in icated in the a ove ta le
This publ cation has b en drafted in ac ordan e with the ISO/IEC Directives, Part 2
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interc n e ting d evic s a d p s iv c mp n nts, can b fou d on the IEC we site
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related to the sp cific publ cation At this date, the publ cation wi b
• recon rmed,
• with rawn,
• re laced by a revised edition, or
A bi n ual version of this publcation may b is ued at a later date
IMPORTANT – The 'colour inside' logo on the cov r pa e of this publ c tion in ic te
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colour printer
Trang 8FIBRE OPTIC INTERCONNECTING DEVICES
Part 01: Fibre optic connector cleaning methods
This p rt of IEC 6 6 7, whic is a Tec nical Re ort, detai s cle nin method for fibre o tic
con ectors It in lu es typical cle nin to ls an mac ines, an cle nin proced res Other
cle nin method may exist The imp ct of contamination an the re son f or con ector
vis al in p ction an cle nin are des rib d in An ex B This Tec nical Re ort do s not
ad res the vis al in p ction criteria, whic are covered in IEC 613 0-3-3 : 2 15
Optical f ibre p tc cord are han led by the o erators an maintenan e staf of o tical
network s stems This Tec nical Re ort may b u ed as a g idel ne to pre are in tru tion
man als for those in olved in o tical s stem maintenan e an o eration
This Tec nical Re ort covers fibre o tic con ector plu s, o tical ada tors, o tical rece tacles
(ex lu in o tical tran ceivers) an d st ca s Guidel nes for o tical con ector en - ace
cle nin method for rece tacle style o tical tran ceivers are covered in IEC TR 6 5 2-4
The f ol owin doc ments, in whole or in p rt, are normatively ref eren ed in this doc ment an
are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a ples For
u dated referen es, the latest edition of the referen ed doc ment (in lu in an
amen ments) a pl es
There are no normative referen es in this doc ment
Trang 93.1.4
pe type cle ner
pro e typ cle ner
cle nin to l for o tical con ector en -aces, rece tacles an o tical con ector ada tors
where a ta e cle nin cloth at the to of the to l moves an cle n
swa typ cle ner
o tical con ector rece tacle an o tical con ector ada tor en -ace cle nin tool in whic a
cle nin cloth is atac ed to the to of a stic
3.2 Optic l conne tor parts
3.2.1
bulk e d a aptor
comp nent in whic two or more plu s may b mated
Note 1 to e try: A b lk e d a a tor h s o e or more alg me t sle v s in whic two or more f erule are alg e
3.2.2
dust c p
cover or ca whic is at ac ed to an o tical con ector plu , an o tical con ector ada tor or
an o tical rece tacle when the o tical con ector is not con ected to protect it f rom
contamination
Note 1 to e try: Th ferule is e p s d to th air a d is n t c n n d within a alg me t sle v of a b lk e d
a a tor or d vic p rt Th e d-f ac of th plu is e s to a c s a d ma b bro g t into c nta t with cle nin
material
3.2.4
port
o en fibre o tic al g ment sle ve whic contain a fibre o tic plu en - ace to whic a fibre
o tic plu may b mated
Note 1 to e try: In th c s of a b lk e d a a tor, it is th o e sid of th a a tor af ter a f i re o tic plu h s
b e in erte into o e sid In th c s of a o tic l d vic , it is th o e in into whic a u er of th d vic wi
plu a p tc c rd Th matin sid of a p rt c n o ly b a c s e thro g th alg me t sle v Th ref ore th
cle nin material s al b bro g t to th e d-f ac thro g th alg me t sle v
3.2.5
power bloc ing s ut ere a aptor
o tical ada tor that has a s uter to bloc o tical p wer emit ed fom an o tical con ector
plu
Note 1 to e try: An o tic l a a tor with s uter s o ld h v a stru ture th t, wh n two o tic l c n e tor plu s are
intera e a d th o tic l c n e tor plu is remo e at th s utere sid , th s uter a tomatic ly mo e to blo k
emite o tic l p wer Th re are two ty e of o tic l a a tors with s uter th t h v alre d b e c mmercialz d:
o e fo u e o blo kin th o tic l p wer a d th oth r f oc s s o d st-pro fn s Ge eraly, p wer blo kin
s utere a a tors th t fo u o blo kin p wer ofte h v a metal s uter within th o tic l a a tor
Trang 104 Appl cation of optical connectors
Optical con ectors con ist of several p rts: con ector plu s, rece tacles, ada tors, d st ca s,
etc
Optical commu ication network eq ipment general y has o tical ada tors on the f ront p nel or
the b c -plane to interf ace with other eq ipment or tran mis ion l nes An o tical p tc cord,
whic has o tical con ector plu s on b th en s of an o tical fibre cord, is general y u ed for
o tical con ection b twe n eq ipment
4.2 Inf lu nc of contamin tion of optic l conne tor e d-f ac s
Optical network eq ipment is located in the central off i es, data centres, computer ro ms, etc
The en ironment of these location is not neces ariy cle n, an it is p s ible that d st or
con en ation is introd ced onto the o tical con ector en -f aces whic may af fect their o tical
p rorman es (se An ex B)
5 Care in handl ng optic l connectors
Clau e 5 des rib s general care in han l n o tical con ectors
5.2 Stora e of o tic l conn ctors
Un sed p rts on o tical network eq ipment, an u u ed o tical con ector plu s on o tical
p tc cord s ould b covered or ca p d by cle n d st ca s A d st ca s ould not enter into
contact with a fibre en - ace when fit ed Optical p tc cord are recommen ed to b stored
in cle n b xes or b g Used d st ca s s ould b cleaned b fore storage Du t ca s s ould
b stored in cle n b xes or b g It is recommen ed that storage b xes or b g are ESD
(electric static dis harged) proces ed
5.3 Conne tion of optic l conne tor plu s to ports on o tic l network e uipme t
For safety re son , b f ore con ection, o tical p wer s ould b of f Du t ca s s ould b
removed ju t b f ore the o tical con ection is made Bef ore the o tical con ection, b th the
o tical con ector en - aces to b mated s ould b in p cted, an cle ned if neces ary
u les otherwise recommen ed by the man f acturer An ex C s ows an example of o tical
con ector en -ace vis al in p ction eq ipment The a plca le cle nin to ls an mac ines
s ould b a pro riate for o tical con ector plu s an o tical ada tors
Af ter in p ction of o tical con ector en - aces, the cle n o tical con ector plu s s ould b
in erted in p rts an mated sec rely
5.4 Dis on e tion of optic l con e tor plugs to p rts
Bef ore dis on ection, o tical p wer s ould b of f
Immediately after the dis on ection, cle n d st ca s s ould b fited to o tical con ector
plu s an p rts
6 Dust caps
Man s a es an materials of d st ca s are avai a le in the market Ap ro riate d st ca s
s ould b fited For o tical con ector plu s, there are typical y two typ s of d st ca s:
coverin the to of the fer ule, or coverin p rt of the plu hou in Du t ca s s ould have a
Trang 11stru ture so that their in er s r aces do not come into contact with the fer ule en - ace when
d st ca s are fit ed Du t ca s are recommen ed to b proces ed to prevent the cre tion of a
static electric c arge It is recommen ed that d st ca s s ould b cle ned u in an air d ster
7 Cleaning tools and ma hines
Clau e 7 des rib s cle nin to ls mac ines f or o tical con ectors
Optical con ector cle nin to ls or mac ines s ould b u ed
Optical con ector plu s are e sier to cle n than o tical rece tacles or o tical ada tors A
typical cle nin method for o tical con ector plu s is to wip the fer ule en -f ace with a cloth
As rub in may prod ce a static electric c arge, whic may atract contamination, it is
recommen ed to u e an o tical con ector cle ner with cloth that has b en proces ed so that
it wi not cre te a static electric c arge Lint-re cloth are also recommen ed
NOT An io iz r c n b u ef ul to n utralz th ele tro tatic c arg whic c n d v lo fom th cle nin pro e s
Typical cle nin to ls an mac ines are des rib d in the fol owin clau es This l st is not
ex au tive
7.2 Re l type cle ner
A re l typ cle ner is u ed f or cle nin o tical con ector plu en -f aces, but is not s ited f or
cle nin o tical rece tacles The cle nin cloth in the re l typ cle ner is rol ed an p c ed
in a cas et e whic has a smal win ow into whic the plu end-f ace is in erted f or cle nin
Fig re 1 s ows an example of a re l typ cle ner The cle nin proces of con ector en
-f aces with re l typ cle ner may res lt in an electrostatic c arge (ESC) efect Therefore it is
recommen ed that the cle nin cloth has b en proces ed to prevent the cre tion of a static
electric c arge The o tical con ector plu en - ace to b cle ned is pres ed into then wip d
alon the cle nin cloth The cle nin cloth s ould b ad an ed b fore every cle nin to
prevent contamination
For IEC 617 4-7, typ MPO con ector plu s with g ide-pin , dedicated re l type cle ners are
A stic typ cle ner has cle nin cloth on the to of a stic It is sometimes cal ed a swab
typ cle ner This cle ner is s ita le f or o tical rece tacles an o tical ada tors Fig re 2
s ows an example of stic typ cle ners
IE C
Trang 12Lint-re cloth are recommen ed Cle nin material s ould b proces ed to prevent the
cre tion of a static electric c arge on the en -ace This typ of cle ner s ould b u ed on e
only
There are several thic nes es of stic typ cle ners avai a le, de en in on the f er ule
diameter
NOT Re ro u e f rom CLE OP TM, Optic l Co n ctor Cle n r, NT Ad a c d Te h olo y Corp ratio
we site htp:/w w.nt-at.c m/pro u tcleto /
Figure 2 –Ex mple of stic type cle ners
7.4 Pe type cle n r
Pen typ cle ners have a cle nin cloth on the to of the cle ner The cle nin cloth rotates
when the to of the cle ner is pres ed on the en - ace of an o tical rece tacle, an cle n
the en - ace For some cle ners, as the width of the cle nin cloth lmits the area of cle nin ,
only the centre of en -f aces may b cle ned It is recommen ed that the cle nin cloth has
b en proces ed to prevent the cre tion of a static electric c arge The cle nin cloth s ould
b l nt-re It is sometimes cal ed a pro e typ cle ner Fig re 3 s ows an example of a p n
typ cle ner
NOT Re ro u e f rom NEOCLEA R, Optic l Co n ctor Cle n r, NEOCLEA R-E Pe Ty e, NT Ad a c d
Te h olo y Corp ratio we site htp:/ w w.nt-at.c m/pro u tn o le n/
Figure 3 –Ex mple of a pe type cle n r
7.5 Adhe iv ba k d stic type cle ner
Ad esive b c ed stic cle ners have a soft ad esive b c in at the to of the cle ner The
ad esive b c ed stic cle ner is briefly pres ed into an removed f om the en -f ace of an
o tical con ector, rece tacle or o tical con ector ada tor where y the soft ad esive b c in
removes d st an other p rtic lates Fig re 4 s ows an example of an ad esive b c ed stic
typ cle ner
IE C
IE C
Trang 13NOT Re ro u e fom Optre TM, Optic l Plu As embly Cle n r, OPTO LEAF, TOMOEGAWA we site
htp:/o t.tomo g wa.c p/e gls /e h/mo hihtml
Fig re 4 – Ex mple of an a h siv ba k d stic type cle ner
7.6 Ga a d v c um cle ning ma hin
A volati e l q id solvent is injected an extracted f rom a noz le Contamination is removed by
the solvent Liq id s ould not enter the ca le elements or other p rts of a con ector where it
can ot b removed Fig re 5 s ows an example of a gas an vac um cle nin mac ine
NOT Re ro u e fom CLEA BLAS TM, JDS Unip a e Corp ratio we site htp:/w w d u.c m/e -u /Te
t-a d-Me s reme tPro u ts/a-z-pro u tlstPa e /cle n la t-p rta le.a p
Figure 5 – Ex mple of a ga a d v c um cle ning ma hin
7.7 Air duster
An air d ster is widely u ed for cle nin electronic an electric eq ipment Compres ed air is
blown fom the noz le of a can It is sometimes caled can ed air Examples of materials are
dif l oro thane (HFC-15 a), trifluoro thane (HFC-14 a) or tetrafluoro thane (HFC-13 a)
HFC-15 a has a lower glo al warmin p tentials (GWP) in ex than HFC-14 a, whic is b t er
f or the en ironment Care s ould b taken as some air d sters may le ve a stain on the
f er ule en - ace Fig re 6 s ows an example of an air d ster
NOT Re ro u e fom htp:/w w.micro are le tro ic c m/pro u ts/pro u tv c-f re -lu -emo erultra le n/
Fig re 6 – Ex mple of a air du ter
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Trang 147.8 Tis ue a d solv nt, wet cle ning
The wet cle nin method u es a solvent, s c as iso ro yl alcohol, with cle nin tis ues f or
o tical elements to cle n the o tical con ector en -f ace No resid e f om the solvent s ould
remain af ter cle nin Usin a solvent prevents the cre tion of a static electric c arge on the
en -f ace an is sometimes eff ective f or removin stic y contamination Af ter wet cle nin , dry
cle nin is recommen ed to remove solvent resid e It is recommen ed that the cle nin
tis ues are l nt- re
8 Optical connectors and their appl ca le cleaning tools a d machines
Ta le 1 s ows typical o tical con ectors an their a pl ca le cle nin to ls an mac ines
For p wer bloc in s ut ered ada tors, stic typ to ls can ot b u ed as the cle nin cloth
on to of the stic may b cau ht by the s ut er plate
Table 1 – Appl c ble cle nin tools a d
ma hine f or typic l optic l conne tor parts
If d st ca s are dirty, cle n the ca s u in an ultrasonic cle ner fi ed with a s ita le solvent
Atention is drawn to the f act that l q id cle nin can le ve a resid e
As des rib d in 5.3, it may b neces ary to in p ct an cle n b th sides an the in ide of the
sle ve of a con ection b f ore they are mated u les otherwise recommen ed by the
man facturer
9.2 Ba ic proc dure of cle ning
The b sic proced re of cle nin is as fol ows
a) In p ct the o tical con ector en -ace for contamination or damage b fore cle nin
b) Dry cle n the o tical con ector en -f ace if contamination, s ratc es or def ects are f ou d
c) In p ct the o tical con ector en -f ace after every cle nin to determine if contamination
has b en removed
d) Re e t b) an c) several times If contamination sti remain , it may b d e to
contamination of the cle nin to ls
e) If contamination remain after dry cle nin several times, try wet cle nin u in a solvent