uk engineering 1
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
FIBRE OPTICS
Light trav!" i# "traight !i#"$ v# th%&gh !#"" a#' (irr%r" )a# '*!)t it$ !ight "ti!! trav!" i# a "traight "traight !i# +t,# %-ti)a! 'vi)". Thi" i" *i# *%r (%"t (%"t -&r-%""/ )a(ra"$ +i#%)&!ar"$ t). ,%&!'#0t *%r( i(ag" )%rr)t! i* !ight 'i'#0t trav! i# a "traight !i#. H%,vr$ thr ar ti(" ,h# ,h# , #' t% !%%2 r%&#' )%r#r"$ %r -r%+ i#"i' -!a)" -!a)" that ar #%t i# a "traight !i# *r%( %&r ". That i" ,h 34IBRE OTICS hav +# 'v!%-'. Th ,%r2i#g %* %-ti)a! *i+r" '-#' %# th +a"i) -ri#)i-! %* %-ti)" a#' th i#tra)ti%# %* !ight ,ith ,ith (attr. 4r%( a -h"i)a! -h"i)a! "ta#'-%i#t$ !ight )a# )a# + "# ithr a" 3E!)tr%(ag#ti) 3E!)tr%(ag#ti) 7av" %r a" a" 3h%t%#". 4%r %-ti)"$ !ight "h%&!' "h%&!' + )%#"i'r' a" ra" trav!!i#g i# "traight !i#" +t,# %-ti)a! !(#t"$ ,hi)h )a# r*!)t %r r*ra)t 8+#'9 th(. Light i" %#! a "(a!! -art %* th #tir "-)tr&( "-)tr&( %* !)tr%(ag#ti) ra'iati%#. ra'iati%#. Th *&#'a(#ta! #at&r %* a!! !)tr%(ag#ti) ra'iati%# i" th "a(: it )a# + vi,' a" -h%t%#" %r ,av" trav!!i#g at th "-' %* !ight 8;<<$<<< 2(="9 %r 1><$<<< (i!"=")9. 1.1 1.1
REFR REFRAC ACTI TIVE VE INDE INDEX X (N) (N)
Th (%"t i(-%rta#t %-ti)a! (a"&r(#t *%r a# tra#"-ar#t (atria! i" it" r*ra)tiv i#'? 8#9. Th r*ra)tiv i#'? i" th rati% rati% %* th "-' %* !ight 8)9 i# a va)&&( t% th "-' %* !ight i# th ('i&(: Th "-' %* !ight i# a (atria! i" a!,a" "!%,r tha# i# a va)&&($ "% th r*ra)tiv i#'? i" a!,a" gratr tha# %# i# th %-ti)a! -art %* th "-)tr&(. A!th%&gh !ight trav!" i# "traight !i#" !i#" thr%&gh %-ti)a! (atria!"$ "%(thi#g "%(thi#g 'i**r#t ha--#" at th "&r*a). "&r*a). Light i" +#t a" it -a""" thr%&gh thr%&gh a "&r*a) ,hr th r*ra)tiv i#'? )ha#g". )ha#g". Th a(%&#t %* +#'i#g '-#'" %# th r*ra)tiv i#'?" %* th t,% (atria!" a#' th a#g! at ,hi)h th !ight "tri2" th "&r*a) +t,# th(. Th a#g! %* i#)i'#) a#' r*ra)ti%# ar (a"&r' #%t *r%( th -!a# %* th "&r*a)" +&t *r%( a !i# -r-#'i)&!ar -r-#'i)&!ar t% th "&r*a)". Th r!ati%#"hi- i" 2#%,# 2#%,# a" 3S#!!" La,$ ,hi)h i" ,ritt#/ #i "i# I @ #r "i# "i# R$ ,hr #i a#' #r ar ar th r*ra)tiv i#'?" %* th i#itia! ('i&( a#' th ('i&( i#t% ,hi)h th !ight i" r*ra)t'. I a#' R ar th a#g!" %* i#)i'#) i#)i'#) a#' r*ra)ti%#. r*ra)ti%#.
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
4ig&r 1 "h%," a# ?a(-! %* !ight g%i#g *r%( air i#t% g!a"".
ANGLE OF INCIDENCE
LIGHT
AIR NORMAL LINE
I
PERPENDICULAR TO GLASS SURFACE
GLASS
R ANGLE OF REFRACTION
S#!!0" La, %# R*ra)ti%# 8Air i#t% G!a""9 4ig&r 1
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
S#!!0" !a, i#'i)at" that r*ra)ti%# )a#0t ta2 -!a) ,h# th a#g! %* i#)i'#) i" t%% !arg. I* th a#g! %* i#)i'#) ?)'" a )riti)a! a#g!$ ,hr th "i# %* th a#g! %* r*ra)ti%# ,%&!' &a! %#$ !ight )a##%t gt %&t %* th ('i&(. I#"ta' th !ight &#'rg%" t%ta! i#tr#a! r*!)ti%# a#' +%&#)" +a)2 i#t% th ('i&(. 4ig&r i!!&"trat" th !a, that th a#g! %* i#)i'#) &a!" th a#g! %* r*!)ti%#. It i" thi" -h#%(#%# %* t%ta! i#tr#a! r*!)ti%# that 2-" !ight )%#*i#' ,ithi# a *i+r %-ti).
TOTAL INTERNAL REFLECTION
41.9º
º1
º!
º1 =
1.5 SIN 41.9º = 1.0014
Criti)a! A#g! 4ig&r
º!
uk engineering 1.!
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
LIGHT GUIDING
Th t,% 2 !(#t" %* a# %-ti)a! *i+r ar it" 3C%r a#' 3C!a''i#g. Th )%r i" th i##r -art %* th *i+r$ thr%&gh ,hi)h !ight i" g&i''. Th )!a''i#g "&rr%&#'" it )%(-!t!. Th r*ra)tiv i#'? %* th )%r i" highr tha# that %* th )!a''i#g$ "% !ight i# th )%r that "tri2" th +%&#'ar ,ith )!a''i#g at a g!a#)i#g a#g! i" )%#*i#' i# th )%r + t%ta! i#tr#a! r*!)ti%#. 4ig&r ; "h%," th (a2 &- %* a *i+r %-ti).
CORE LIGHT RA"
CLADDING LIGHT RA" STRI#ES THE CLADDING AT AN ANGLE GREATER THAN THE CRITICAL ANGLE$ THEREFORE THE LIGHT RA" IS REFLECTED RATHER THAN BEING REFRACTED.
4i+r O-ti) 8C%r a#' C!a''i#g9 4ig&r ;
uk engineering 1.%
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
LIGHT COUPLING
A#%thr ,a t% !%%2 at !ight g&i'i#g i# a *i+r i" t% (a"&r th *i+r0" a))-ta#) a#g!. Thi" a#g! i" th a#g! ,ithi# ,hi)h th !ight "h%&!' #tr th *i+r %-ti) t% #"&r it i" g&i'' thr%&gh it. Th a))-ta#) a#g! i" #%r(a!! (a"&r' a" a #&(ri)a! a-rt&r 8NA9. Th #&(ri)a! a-rt&r a#' a))-ta#) a#g! (a"&r(#t" ar a )riti)a! )%#)r# i# -ra)ti)a! *i+r %-ti)". Gtti#g !ight i#t% a *i+r i" 2#%,# a" 3C%&-!i#g. 7h# *i+r %-ti)" ,r *ir"t 'v!%-' i# th 15<"$ #% %# +!iv' that (&)h !ight )%&!' + )%&-!' i#t% a "i#g! *i+r. I#"ta' th gr%&-' *i+r" i#t% +&#'!" t% )%!!)t a ra"%#a+! a(%&#t %* !ight. O#! ,h# 3LASERS (a' high! 'ir)ti%#a! +a(" -%""i+! 'i' r"ar)hr" "ri%&"! +gi# t% )%#"i'r &"i#g "i#g! %-ti)a! *i+r". 4ig&r "h%," !ight )%&-!i#g i#t% a *i+r %-ti) a#' th )%#"tr&)ti%# %* a *i+r %-ti) )a+!. ACCEPTANCE ANGLE
FILLER STRANDS
LIGHT MUST FALL ARAMID "ARN INSIDE THIS ANGLE TO BE GUIDED THROUGH THE CORE
OPTICAL FIBRES
OPTICAL SEPARATOR TAPE
ARAMID "ARN
OUTER &AC#ET
SEPARATOR
FILLER STRANDS
END
TAPE
VIE'
FIBRE OPTIC CABLE
Light C%&-!i#g 8Criti)a! A#g!9 4ig&r
FIBRES
uk engineering 1.4
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
ALIGNMENT
C%&-!i#g !ight +t,# *i+r" r&ir" )ar*&! a!ig#(#t a#' tight t%!ra#)". Th high"t **i)i#) )%(" ,h# th #'" %* th t,% *i+r" ar -r(a##t! %i#'. T(-%rar &#)ti%#" +t,# t,% *i+r #'"$ (a' + )%##)t%r"$ hav a "!ight! highr !%"" +&t a!!%, (&)h gratr *!?i+i!it i# r)%#*ig&ri#g a *i+r %-ti) #t,%r2. 4ig&r 5 "h%," th -r%+!(" a""%)iat' ,ith i#)%rr)t a!ig#(#t.
LATERAL MISALIGNMENT
ANGULAR MISALIGNMENT
AXIAL MISALIGNMENT
POOR END FINISH
4i+r O-ti) A!ig#(#t 4ig&r 5
uk engineering 1.5
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
FIBRE OPTIC CONNECTORS
B%i#g &"" thr t-" %* )%##)t%r": T- A C%##)t%r$ T- B C%##)t%r a#' T- C C%##)t%r. 1.5.1 T"PE A CONNECTOR
Th t- 3A )%##)t%r ha" th" t)h#i)a! &a!iti": •
A thra'' )%&-!i#g ()ha#i"(.
•
A +&tt t- )%##)t%r ,ith )ra(i) tr(i#&"".
•
Th tra#"(i""i%# %* a !ight +a( *r%( th #' %* %# %-ti)a! *i+r i#t% th #' %* a#%thr %-ti)a! *i+r.
4ig&r 6 "h%," ?a(-! %* 3A t- r)-ta)! a#' -!&g )%##)t%r".
FIBRE OPTIC CABLE STRAIN RELIEF BOOT BAC#SHELL
THREADED COUPLING &AC#
COUPLING
SCRE'
RING
CERAMIC
FIBRE OPTIC
ALIGNMENT
SLEEVES
HOLE
TERMINUS
ALIGNMENT PINS
RECEPTACLE
T- 3A C%##)t%r 4ig&r 6
PLUG
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.5.! T"PE B CONNECTOR
Th t- 3B )%##)t%r ha" th" t)h#i)a! &a!iti": •
A thra'' )%&-!i#g ()ha#i"(.
•
A# ?t#'' +a( )%##)t%r that )%#tai#" a (i#iat&r !#" +hi#' a -r%t)tiv ,i#'%,.
•
Th tra#"(i""i%# %* a !ight +a( + th (i#iat&r !#" *r%( a# %-ti)a! *i+r thr%&gh th -r%t)tiv ,i#'%, t% th %--%"it (i#iat&r !#" i#t% th %--%"it *i+r %-ti).
4ig&r F "h%," ?a(-! %* a 3B t- r)-ta)! a#' -!&g )%##)t%r".
FIBRE OPTIC CABLE STRAIN RELIEF BOOT BAC#SHELL
THREADED COUPLING COUPLING RING
ALIGNMENT PINS
ALIGNMENT HOLE
PROTECTIVE 'INDO'
RECEPTACLE
PLUG
T- 3B C%##)t%r 4ig&r F
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.5.% T"PE C CONNECTOR
Th t- 3C )%##)t%r ha" th" t)h#i)a! &a!iti": •
A -&"h-&!! )%&-!i#g ()ha#i"(.
•
A# ?t#'' +a( )%##)t%r that )%#tai#" a (i#iat&r !#" +hi#' a -r%t)tiv ,i#'%,.
•
Th tra#"(i""i%# %* a !ight +a( + th (i#iat&r !#" *r%( a# %-ti)a! *i+r thr%&gh th -r%t)tiv ,i#'%, t% th %--%"it (i#iat&r !#" i#t% th %--%"it *i+r %-ti).
4ig&r > "h%," ?a(-! %* a 3C t- r)-ta)! )%##)t%r.
STRAIN RELIEF BOOT MOUNTING FLANGE
FIBRE OPTIC CABLE
BAC#SHELL
PROTECTIVE 'INDO'
RECEPTACLE CONNECTOR
T- 3C C%##)t%r 4ig&r >
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
4ig&r "h%," h%, th !ight i" tra#"*rr' i# th t- B a#' C )%##)t%r" &"i#g (i#iat&r !#"" a#' -r%t)tiv ,i#'%,.
POL"URETHENE &AC#ET
CONNECTOR END LENS
LIGHT SIGNAL
FIBRE OPTIC
CLADDING PROTECTIVE GLASS
4i+r O-ti) C%##)ti%# 4ig&r C%&-!i#g !%""" )a# )a&" "&+"ta#tia! att#&ati%#. Da' "-a) at th (ittr=*i+r a#' *i+r=r)ivr &#)ti%#" a#' 8&#!"" %-ti)a!! )%rr)t'9 th +a( "-ra'" %* F a""%)iat' ,ith "(i)%#'&)ti#g !a"r"$ ar th &"&a! "%&r)" %* !a&#)hi#g -r%+!(". T% !i(it thi" !ight !%"" a +a!! !#" i" &"'. Th" !#"" 8,ithi# th )%##)t%r9 *%)&" th !ight i#t% a#%thr *i+r %-ti) )a+! %r a# %-ti)a! r)ivr. M%#%(a' *i+r" ar -arti)&!ar! -r%# t% !a&#)hi#g !%""" +)a&" it i" 'i**i)&!t t% -r%'&) a# a))&rat "&ar #'. J%i#ti#g a#' )a+!i#g$ i# %r'r t% -r%'&) !%#gr !#gth"$ ar )&rr#t! r)ivi#g 'v!%-(#t att#ti%#.
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
4ig&r 1< "h%," ?a(-! %* t- 3A$ 3B a#' 3C )%##)t%r" a#' i'#ti*i)ati%# !a+!".
T"PE (A) PLUG CONNECTOR STRAIN RELIEF
ASSEMBL" IDENTIFICATION SLEEVE
MATE 'ITH BAC#SHELL
IDENTIFICATION SLEEVE
BOEING T"PE (A) PLUG CONNECTOR
T"PE (B) PLUG CONNECTOR STRAIN RELIEF
ASSEMBL" IDENTIFICATION SLEEVE
MATE 'ITH BAC#SHELL
IDENTIFICATION SLEEVE
BOEING T"PE (B) PLUG CONNECTOR
T"PE (C) PLUG CONNECTOR
STRAIN RELIEF
ASSEMBL" IDENTIFICATION SLEEVE
MATE 'ITH BAC#SHELL MOUNTING
IDENTIFICATION SLEEVE
FLANGE
BOEING T"PE (C) PLUG CONNECTOR
4i+r O-ti) C%##)t%r" 4ig&r 1<
uk engineering 1.*
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
FIBRE OPTIC SPLICER
Th (%"t )%((%# t- %* "-!i) i" th *&"i%# "-!i)$ *%r(' + ,!'i#g th #'" %* t,% %-ti)a! *i+r" t%gthr. Thi" (th%' r&ir" a "-)ia! i#"tr&(#t )a!!' a *&"i%# "-!i)r0$ ,hi)h i#)!&'" a +i#%)&!ar (i)r%")%-$ *%r vi,i#g th &#)ti%# a#' (%&#ti#g "tag"$ a#' a -r)i"i%# (i)r%(tr t% ha#'! th *i+r". 1.*.1 ELASTOMERIC SPLICE
Thi" i" %# %* th "i(-!"t t-" %* "-!i) a#' r!i" %# th a!ig#(#t %* th *i+r #'" i# a V"ha- gr%%v$ a" "h%,# i# *ig&r 11.
TRIANGULAR HOLE FOR FIBRE
SLEEVE FIBRE
COATING INSERTS
VGr%%v S-!i) 4ig&r 11
TAPERED ENTRANCE
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
Th *i+r" ar )%#*i#' +t,# t,% *!?i+! -!a"ti) -!at"$ a)h )%#tai#i#g a gr%%v i#t% ,hi)h th *i+r *it". Thi" )#tr" th *i+r )%r" rgar'!"" %* variati%#" i# th %&tr 'ia(tr %* th *i+r. A# i#'?'(at)h' *!&i'$ %r -%?$ i" *ir"t i#"rt' i#t% th h%! thr%&gh th "-!i). O# *i+r #' i" i#"rt' &#ti! it ra)h" a+%&t ha!*,a thr%&gh th "-!i)$ th# th ")%#' *i+r #' i" i#"rt' *r%( th %thr #' &#ti! it )a# + *!t -&"hi#g agai#"t th *ir"t. B%th *i+r #'" (&"t + -r%-r! *i#i"h' t% av%i' ?)""iv !%""" thr%&gh r*!)ti%# %r th -r"#) %* )%#ta(i#a#t". 1.
ADVANTAGES OF FIBRE OPTICS
4i+r%-ti) )%((&#i)ati%#" ""t(" hav a !arg +a#',i'th$ .g. 1 GH. Th +a#',i'th i" th (a?i(&( rat at ,hi)h i#*%r(ati%# )a# + tra#"(itt'. It ha" th +#*it %*: ♦
I((&#it t% !)tr%(ag#ti) i#tr*r#) i# !)tri)a!! #%i" "it&ati%#".
♦
High ")&rit agai#"t Kta--i#gK.
♦
M&)h gratr *!?i+i!it tha# th (a%rit %* ,avg&i'".
♦
L%, ,ight ,h# )%(-ar' ,ith )%--r 6< -r )#t !"".
♦
A+i!it t% r"i"t vi+rati%#.
♦
G!a"" *i+r" hav #% *ir ri"2.
♦
I#a+i!it t% *%r( &#,a#t' arth !%%-".
♦
I#a+i!it t% "h%rt)ir)&it a'a)#t *i!a(#t" ,h# *ra)t&r'.
♦
High 'ata )a-a)it 81
1.+
DISADVANTAGES OF FIBRE OPTICS ♦
Di**i)&!t t% %i#.
♦
N% tra#"*r %* D.C. %,r.
uk engineering 1.9
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
E,UIPMENT IN A FIBRE OPTIC S"STEM 1.
A# #)%'r: a !ight (ittr: a# IR!ight(itti#g 'i%' %r a "h%rtr !iv'$ #arr%,r +a('$ *a"tr r"-%#'i#g "(i)%#'&)ti#g !a"r.
.
O-ti)a! *i+r" ,ith <.< t% <.1<(( 'ia(tr *i+r" a""(+!' i#t% +&#'!" a#' *&rthr a""(+!' i#t% )a+!" ,ith a -%""i+! -%!"tr#"tr#gth#i#g ((+r. Th" (&!ti(%' *i+r" ,i!! -r%+a+! "&-r"' th "i#g!(%' *i+r" ,hi)h hav +%th ha#'!i#g a#' -r-arati%# 'i**i)&!ti".
;.
A r)ivr: a -i# %r ava!a#)h -h%t%'i%'.
.
A ')%'r.
Th ,%r'" #)%'r a#' ')%'r ar g#ra! tr(" &"' t% '")ri+ th -i)" %* &i-(#t ,hi)h ar th *ir"t a#' !a"t "tag" i# th )%#vr"i%# %* th a&'i%vi"&a! i#-&t t%$ a#' *r%($ th i#*rar' !ight ,hi)h a)t&a!! trav!" thr%&gh th %-ti)a! *i+r". 4ig&r 1 "h%," th !a%&t a#' +a"i) )%(-%##t" #'' i# *i+r %-ti) )%((&#i)ati%#".
COU5LING OR CONNECTOR
ELECTRICAL
ELECTRICAL SIGNAL
SIGNAL
ENCODER
DECODER
O5TICAL SEMICONDUCTOR
4IBRES
LASER OR LED
4i+r O-ti) C%((&#i)ati%# 4ig&r 1
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
H%, th *i+r (a + i#)%r-%rat' i# a "i#g! )ir)&it i" "h%,# i# 4ig&r 1;.
-VE
-VE
ENERG" ABSORBING GLASS LO' REFRACTIVE INDEX
LIGHT EMITTING DIODE PHOTO TRANSISTOR
RECEIVER
TRANSMITTER LO' LOSS GLASS OF HIGHER REFRACTIVE INDEX
4i+r O-ti) Cir)&it 4ig&r 1; 1.10 SAFET" 7h# ,%r2i#g %# 4i+r O-ti) )%##)t' &i-(#t$ )ar i" r&ir' ,h# ha#'!i#g )a+!". I* th &i-(#t i" #rgi"'$ i#vi"i+! !ight *%r( th *i+r %-ti) )a+! )a# + "&**i)i#t t% )a&" 'a(ag t% th ". B*%r th *a) %* th )%##)t%r i" ?a(i#' ithr %# %* th" )%#'iti%#" (&"t + "ati"*i': •
Th )%##)t%r" ar 'i")%##)t' *r%( &i-(#t at +%th #'" %* th )a+!.
•
Th -%,r t% th &i-(#t i" "t t% 3O44.
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.11 BASIC OPERATION 1. Th i#-&t i" )%#vrt' + th #)%'r t% !)tri)a! "ig#a!"$ ,hi)h r-r"#t ithr th "%&#' ,av" %* th v%i)$ %r th ")a##i#g %* vi"i+! ('ia. . Th (ittr "#'" %&t -r%+" %* i#*rar' !ight )%rr"-%#'i#g t% th !)tri)a! va!&"$ i# "tr#gth a#' '&rati%#. ;. Th i#*rar' !ight i" !a&#)h' i#t% th *i+r"$ ,hi)h )%#'&)t it t% th r)ivr. . Th r)ivr r)%#vrt" th !ight t% !)tri)a! va!&". 4ig&r 1 "h%," *i+r %-ti) )%##)ti%#.
BEND RADIUS /1.5
FIBRE OPTIC CABLE
STRAIN RELIEF 1 MIN E,UIPMENT T"PE (B) PLUG
4i+r O-ti) C%##)ti%# 4ig&r 5.1<.1
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.1! S"STEM CONFIGURATION (TOPOLOG") Th ri#g a#' !i#ar +&" #t,%r2 t%-%!%gi" ar "h%,# at 4ig&r 15. Th ri#g )%#"i"t" %* -%i#tt%-%i#t !i#2" )%##)ti#g th tr(i#a!" i#t% a ri#g. Ea)h "tag #'" "ig#a! rg#rati%# a#' "% thi" r'&)" %vra!! r!ia+i!it. 4ai!&r i# %# "tag ,%&!' )a&" %vra!! *ai!&r %* thi" "ri" ""t(. A" *i+r %-ti) t)h#%!%g ha" 'v!%-'$ th !i#ar +&" #t,%r2 ha" -r%v' (%"t *av%&ra+!. I#tr)%##)ti%#" ar (a' + K"tarK )%&-!r".
RING
LINEAR BUS NET'OR#
S"t( C%#*ig&rati%# 4ig&r 15
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
4ig&r 16 "h%," a# ?a(-! %* "-!ittr" a#' )%&-!r" &"' i# *i+r %-ti) ""t(".
TXRX N %
TXRX N 4
TXRX N !
TXRX N 5
COUPLER
REFLECTORS
TXRX N 1
TXRX N *
DEPENDENT ON THE 'AVELENGTH
TXRX N +
TXRX N
THE BEAM 'ILL EITHER BE REFLECTED OR ALLO'ED TO PASS THROUGH THE COUPLER
4i+r O-ti) C%&-!r=S-!ittr )%#*ig&rati%# 4ig&r 16
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.1% AIRCRAFT APPLICATIONS 1.1%.1 OPTICAL DATA BUS
Data tra#"(i""i%# ""t(" g#ra!! &ti!i" a t,i"t' )a+! -air a" a +&". Thi" ha" it" !i(itati%#" a#' *i+r %-ti)" i" &#'r a)tiv 'v!%-(#t a" th #?t "t*%r &" i# air)ra*t 'igita! ""t(". 1.1%.! STANAG %910 DATA BUS S"STEM
Thi" i" th E&r%-a# "ta#'ar' 'ata +&" ,ith a < M+it=") 'ata rat a#' ,i!! #tr "rvi) ,ith th #, E&r%*ightr <<<. Thi" a'va#)' 'ata +&" ""t( -r%vi'" a# v%!&ti%#ar i#)ra" i# )a-a+i!it + &"i#g MIL STD 155;B a" th )%#tr%!!i#g -r%t%)%! *%r high "-' 8
UPTO %1 SUB3S"STEMS
BUS CONTROLLER
SUB S"STEM 1
SUB S"STEM !
CONTROL 2 LO' SPEED DATA BUS HIGH SPEED DATA BUS
FIBRE OPTIC STAR COUPLER
STANAG ;1< Data B&" S"t( 4ig&r 1F
SUB S"STEM N
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
Th %-ti)a! "tar )%&-!r a!!%," !ight "ig#a!" *r %( a)h *i+r "t&+ t% + )%&-!' i#t% th %thr *i+r "t&+" a#' th# t% th %thr "&+""t(". Th 'ata +&" a!"% ha" th #%r(a! %-rati%# %* th MIL STD 155;B 'ata +&". Th USA i" 'v!%-i#g it" %,# vr"i%# %* a *i+r %-ti) 'ata +&" ""t(. Thi" i" a High S-' Data B&" 8HSDB9$ a#' &"" Li#ar T%2# a""i#g a" i t" )%#tr%!!i#g -r%t%)%!. It %-rat" at 5< M+it"=") a#' %-rat" t% )%##)t &- t% 1> "&+ ""t(". 4ig&r 1> "h%," th ar)hit)t&r %* th Li#ar T%2# a""i#g High S-' Data B&" 8LTHSDB9.
UPTO 1!+ SUB3S"STEMS
SUB S"STEM 1
SUB S"STEM !
SUB S"STEM %
FIBRE OPTIC STAR COUPLER
Li#ar T%2# a""i#g High S-' Data B&" 4ig&r 1>
SUB S"STEM N
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.1%.% FL"3B"3LIGHT FLIGHT CONTROL S"STEM
E?t#"iv t"t" hav +# )arri' %&t &"i#g th 4!+Light t)h#%!%g. It ha" h&g a'va#tag" %vr th )&rr#t 4!+7ir ""t(". 4i+r %-ti) )a+!i#g i" &#a**)t' + EMI a#' ha" a )%#"i'ra+! *a"tr 'ata tra#"*r rat 8< M+it=") t% 1<< M+it=")9. Th ""t(" ar a!"% !ightr tha# )%#v#ti%#a! ")r#' )a+!' ""t("$ "i#) *i+r %-ti) )a+! i" !ightr tha# )%#v#ti%#a! )a+! a#' %**r" grat ,ight "avi#g. 4ig&r 1 "h%," th )%#*ig&rati%# %* a *!+!ight ""t(
LRG
FIBRE OPTIC CABLE
MOTION ELECTRICAL CABLE
SENSORS
FLIGHT
ACTUATOR
CONTROL
CONTROL
COMPUTER
ELECTRONICS
ACTUATOR AIR DATA COMPUTER CONTROL SURFACE
4!BLight S"t( 4ig&r 1
uk engineering
JAR 66 CATEGORY B1
MODULE 5.10
CONVERSION COURSE
FIBRE OPTICS
MODULE 5
1.1%.4 OPERATION
4i+r %-ti) )a+! i#tr)%##)t" th &#it" %* th *!ight )%#tr%! ""t( a#' !i(i#at" th -%""i+i!it %* -r%-agati#g !)tri)a! *a&!t" +t,# &#it". Th ar +i'ir)ti%#a! a#' )a# + &"' t% )%#v th ""t( "tat&" t% th *!ight )r,"0 )%#tr%! a#' 'i"-!a -a#!. A *&rthr a'va#tag %* *i+r %-ti) 'ata tra#"(i""i%# i" th a+i!it t% &" 37av!#gth Divi"i%# M&!ti-!?i#g 87DM9 ,hr+ a "i#g! *i+r )a# + &"' t% tra#"(it "vra! )ha##!" %* i#*%r(ati%# a" )%'' !ight -&!"" %* 'i**r#t ,av!#gth" 8%r )%!%&r"9 "i(&!ta#%&"!. Th i#'ivi'&a! 'ata )ha##!" ar th# r)%vr' *r%( th %-ti)a!! (i?' 'ata + -a""i#g th !ight "ig#a! thr%&gh ,av!#gth "!)tiv %-ti)a! *i!tr"$ ,hi)h ar t&#' t% th r"-)tiv ,av!#gth". Th 7DM ha" a vr high i#tgrit$ a" th (&!ti-!?' )ha##!" ar **)tiv! %-ti)a!! i"%!at'.
JAR 66 CATEGORY B1 MODULE 5.10
MODULE 5
uk engineering
DIGITAL TECHNI,UES ELECTRONIC INSTRUMENT SYSTEMS
FIBRE OPTICS
