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Ericsson FSU 995 F Скачать руководство пользователя страница 31

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ADVANCED OPERATION - Splicing program structure: Splicing process

Hot core alignment

Pre-defined program: 05

A typical splicing sequence for the hot core alignment process

The FSU 995 FA employs hot image analysis and RTC in the hot core alignment process to
overcome the two main difficulties associated with highly eccentric cores. The first difficulty
is that the splicer must locate the cores and align them properly. The second difficulty is that
alignment of the eccentric cores inevitably means that the claddings will not line up. This
would not be such a problem in and of itself if it were not for the fact that the misalignment of
the claddings leads to surface tension during fusion that bends the fibers, and pulls the cores
back out of alignment.

-

FUSION CURRENT 2

is not specifically a hot core align-

ment paramenter, but you should take note that if you
choose a value of 0.0 mA, the current test sets this param-
eter automatically the same time it determines the RTC
CURRENT. Otherwise you will have to set it manually.

ACCEPTABL E O FFSET

Time

Images taken at each

current peak

Image analysis

Current

Model of current test

Hot core alignment control parameters

ACCEPTABLE OFFSET

regulates whether a RTC
sequence with its
compensentory elements or
a normal splicing sequence
will be used to splice the
fibers. It can be that the
offset measured in the first
part of the process is so
small (ie. is acceptable) that
it is just as well to line up the
claddings and splice nor-
mally.

RTC CURRENT

is the current applied to take
the hot images needed for
measurement of the eccen-
tricity of the fibers. You can
set it manually, or use the
current test (see p. 57), which
sets it automatically.

MAX. ECCENTRICITY

is used to decide whether
the fibers should be spliced
at all. To determine whether
the maximum allowable
eccentricity has been
exceded, the splicer takes
hot images before splicing. If
this reading is above the
value of the parameter, you
will receive a warning in the
monitor, and the splicing
sequence will stop.

Hot core alignment is de-
signed for single mode fibers
with a core to cladding ec-
centricity greater than 0.6

m

m.

To be able to line up and
splice fibers who are not
susceptible to the normal
splicing method of lining up
the claddings with the as-
sumption that the cores will
thereby also be aligned, the
FSU 995 FA makes use of hot
images and real time control
(RTC).

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Содержание FSU 995 F

Страница 1: ...Established 1981 Advanced Test Equipment Rentals www atecorp com 800 404 ATEC 2832...

Страница 2: ...FSU 995 FA User s manual 133ST010R1A...

Страница 3: ...1 User s manual for the FSU 995 FA single fiber fusion splicer by Ericsson...

Страница 4: ...2...

Страница 5: ...Splicing process 28 Program parameters 36 Pre defined programs Programs 01 10 41 Program editing Programs 11 50 43 Parameter editing review 53 Special functions 55 Advanced splicing parameters 55 Serv...

Страница 6: ...the forty editable slots you have for designing your own splicing programs to suit your special needs In this manual the instructions you will need to run the pre defined programs 01 10 will be the fo...

Страница 7: ...uring operation l Never loosen any screws except those mentioned in this manual since you may harm important adjustments l Do not insert objects other than stripped and cleaned optical fiber or cleani...

Страница 8: ...ctrodes Two pairs of V grooves Blue 125 mm 1mm Black 250 mm 2mm 2 3 4 5 Fiber fixture optional see p 23 Holds fiber secure during removal Left V groove Used in fiber alignment Left fiber clamp Fixes f...

Страница 9: ...a fine gap or close a gap To initiate a splicing procedure On Off Esc Mode Hot Image Yes No Enter 0 9 0 9 0 9 Select _ View Focus 1 6A Fuse Output for video Auxiliary 12V video output see Appendix B 2...

Страница 10: ...up to 1 mm See also p 11 Use the black V grooves when you intend to clamp on primary coating They are designed for fiber with a nominal primary coating of 250 mm as well as loose tube secondary coate...

Страница 11: ...e Note that the splicer always starts in Automode when just turned on A list of the pre defined splicing programs 01 10 is found on page 16 5 Splice the fibers 17 Press the fuse button 6 Check the spl...

Страница 12: ...ow It is important that you do not put undue stress on the fibers by bending or crimping them v Illustrations of strippers for secondary and primary coating BASIC OPERATION Fiber preparation Loose tub...

Страница 13: ...amping on bare fiber Use Black V grooves Clamping on primary coating Loose secondary coating 12 mm primary coating 5 mm 5 mm Primary coating Tight secondary coating Primary coating 17 mm 17 mm Fiber p...

Страница 14: ...ling you that it is calibrat ing parameters Once calibration is completed the splicer will tell you to INSERT FIBERS and to CLOSE SAFETY SHIELD BASIC OPERATION Splicer preparation FSU 995 FA AUTO MODE...

Страница 15: ...SM P01 PRESS FUSE BUTTON AUTO ALIGNING FUSION Check the fibers 4 Before you take any more steps toward splicing you should check the fibers in the monitor to make sure they are clean and well cleaved...

Страница 16: ...section on Basic Operation we are only going to use the pre defined programs Programs 01 10 as examples but you would follow the same selection procedure if you wanted to load in one of your own progr...

Страница 17: ...SM SM and in the mes sage field the splicer will ask if you want to change the pro gram again If you are satisfied with the splicing program displayed press No F The splicer will then ask whether you...

Страница 18: ...ses are explained in the section on Advanced Operation see p 28 Screen viewer with parameters for Program 01 BASIC OPERATION Splicing mode and program selection Program Name Prog No Fiber type Splicin...

Страница 19: ...splicing To start the automatic splicing sequence press FUSE The splicer will then automatically align the fibers roughly pre fuses focuses the view performs fine alignment and finally fuse the fibre...

Страница 20: ...nd left fibers until the outer edges of the fibers line up When you think the fibers are lined up you can start bringing the fibers towards each other by alternatively pressing the and buttons for eac...

Страница 21: ...ap You then briefly press the GAP button The resulting gap should be as narrow as possible but still wide enough to allow for free movement of the fibers up and down see illustration on next page Usin...

Страница 22: ...le Outer edges lined up Fuse 6 When the fibers are aligned to your satisfaction you can press the FUSE button and start fusion The splicer will follow the splicing program you chose earlier in our cas...

Страница 23: ...multiple re fusion can result in reduced splice strength and or increased splice attenuation Fuse You should also visually evaluate the splice The sequence of images available includes two cold upper...

Страница 24: ...o cated outside the core it reduces splice strength when inside the core it also contributes to higher splice loss The best action to take is to carefully re prepare the fibers Bulge A bulge in the ou...

Страница 25: ...essary torsional tension on the fiber is to use the fiber fixtures available for the FSU 995 FA see adjacent picture Remove the fiber 1 Splice protection Make sure the heat shrinkable sleeve is positi...

Страница 26: ...24...

Страница 27: ...ve differently when spliced so the fiber type must be correctly specified in a splicing program C Splicing process 28 There are six different splicing processes available with the FSU 995 FA D Program...

Страница 28: ...programs ADVANCED OPERATION Splicing program structure Program name NORMAL SM SM P01 ERBIUM M ATTENUATOR AN SM SM xxxxx xx xx NORMAL SM ECCENTRIC SM SM Erbium doped fiber ERBIUM DOPED FIBER Pre define...

Страница 29: ...vel of dispersion at a chosen wavelength And again like depressed cladding fiber the dopants used to create the necessary gradation of refractive indexes make the core very difficult to see in hot ima...

Страница 30: ...ally two superposed graphs The bar graph represents the electrode currents with respect to time The line graph represents the fiber distance with respect to time current 2 current 1 current 3 pre fuse...

Страница 31: ...am eter automatically the same time it determines the RTC CURRENT Otherwise you will have to set it manually ACCEPTABL E O FFSET Time Images taken at each current peak Image analysis Current Model of...

Страница 32: ...95 FA lamp when the fiber ends are aligning If you set a high parameter value the gap between the fiber ends will be wide when FUSION CUR RENT 2 is initiated and vice versa The control parameters used...

Страница 33: ...e allowed to reach before the arc will shut off thus ending the splicing sequence We recommend that the first time you splice a new fiber combination that you run the Threshold type test see next page...

Страница 34: ...ndex profiles decreases during splicing it is possible to determine the optimal match by just measuring the difference between the two index profiles stopping the splicing sequence when the difference...

Страница 35: ...the process not to terminate before the divergence the RTC procedure must be initiated when the profiles have converged see bottom figure This you achieve by adjusting the splicing parameter FUSION TI...

Страница 36: ...s set to 0 RTC is disabled and if set above 10 it determines the limit to the number of RTC cycles the splicer will carry out before ending the splic ing sequence automatically see above diagram OFFSE...

Страница 37: ...light from an external source into the core Example of fiber probes for a micro scope Hour glass form at the end of the first pulling step using Program 09 Pulling or tapering control parameters PULL...

Страница 38: ...ult values General parameters The general parameters hold information that concerns the overall structure of the splicing program Parameter Function Range Default PROGRAM NAME Max 16 character name Al...

Страница 39: ...99 mm 1 0 mm eccentricity ACCEPTABLE OFFSET Max acceptable core offset 0 0 to 0 9 mm 0 3 mm RTC CURRENT Heating current for inital 6 0 to 29 9 mA 11 mA RTC images INDEX LIMIT Min acceptable hot fiber...

Страница 40: ...ET 1 1 to 1 9 mm lower limit recommended 2 1 to 2 9 mm upper limit value 1 3 PULLING DISTANCE 11 to 19 mm lower limit The distance the fibers are 21 to 29 mm upper limit to be pulled ACCEPTABLE OFFSET...

Страница 41: ...c the fiber ends touch FUSION CURRENT 1 Fusion current before 0 0 to 29 9 mA 10 5 mA the fiber ends touch During Hot core alignment it is the initial RTC current FUSION TIME 2 Fusion time after 0 0 to...

Страница 42: ...field diameter 2 0 to 19 9 mm 9 8 mm for right fiber SET CENTER Sets normal splicing or 150 to 255 pixels off center splicing 360 pixels AOA CURRENT Arc on alignment current 6 0 to 29 9 mA 0 Disable...

Страница 43: ...RRENT 0 0 mA EARLYPREFUSION NO ALIGNACCURACY 0 15 mm LOSSSHIFT 0 dB AUTOARCCENTER NO P01 Program 02 DSF SM SM Depressed cladding fiber Normal splicing PREFUSE TIME 0 2 s PREFUSE CURRENT 10 0 mA GAP 50...

Страница 44: ...m RIGHT MFD 8 5 mm SET CENTER POSITION 255 AOA CURRENT 6 5 mA EARLY PREFUSION NO ALIGNACCURACY 0 10 mm LOSSSHIFT 0 dB AUTOARCCENTER NO P06 Program 07 ERBIUM DSF OVD Erbium with dispersion shifted Mode...

Страница 45: ...ting The adjacent figure shows an example where the program we are editing is Program number 26 MODIFICATION 1 MODIFICATION 1 P26 NEW PROGRAM One of the most important features of Advanced Operation i...

Страница 46: ...nt you will enter program editing mode If you answer No you will exit both program editing and program selection and will return to splicing mode Pass through security 3 If the program you have select...

Страница 47: ...llow the same procedure as in step 3 Pass through security on source program See step 3 Use another program as a base 4 As has been recommended earlier it is helpful to use another program as a base w...

Страница 48: ...code xx x You can then type in your new code using the number buttons As always with security codes it is best to pick something memorable but not too obvious You enter your new security code by pres...

Страница 49: ...changed in the following steps steps 6 and 7 General parameters The general parameters ho Parameter PROGRAM NAME Entering text on the FSU 995 FA is controlled by the arrow buttons according to the ad...

Страница 50: ...and ask you whether you want to change it by displaying Change fiber type in the message field If you are interested in changing the fiber type press Yes If you are only interested in changing the sp...

Страница 51: ...tapering you will next see Normal splic ing again When the splicing process you want is in the message field you should press Yes ADVANCED OPERATION Program editing Edit control parameters 8 EDIT CONT...

Страница 52: ...ol parameters for mode field matching as an example The range for possible values for mode field matching control parameters is listed on p 37 Cont from preceding page The following example is for a p...

Страница 53: ...SION For an example of how to deal with such binary parameters see the parameter editing summary on page 53 Splicing parameter editing is complete when the value for the last parameter has been entere...

Страница 54: ...sifed with the program press No and end the editing session The splicer will tell you it is Updating pa rameters and then return to splicing mode If you press Yes you will return to step 5 p 46 End ed...

Страница 55: ...r ON No The NO button is used to answer two sorts of questions 1 In navigation to answer that you do NOT want to make the changes involved in the next step It is by pushing the NO button that you acce...

Страница 56: ...and a variable region which toggles between Yes and No Press the No button to turn the parameter off and the Yes button to turn it back on again Press ENTER to save the value of the parameter 3 Param...

Страница 57: ...ight fiber during splicing This is useful when splicing two different kinds of fibers requiring different temperatures for melting The value of the parameter represents the number of pixels from the l...

Страница 58: ...g a low current that can be ignited during fine alignment This ensures that the alignment is carbon coating electrode force at igniting very low current 6 mA Increased force because of the conductivit...

Страница 59: ...another slot by following the instructions on page 45 2 Press the button 3 Press the Yes button to say you want to run the current test You will subsequently have to answer No three times in order to...

Страница 60: ...SPLICE LIST button Clean electrodes NO Splicelist handling YES Change list On Off YES Splice list On If necessary press Yes again so the parameter reads Splice list On Yes Then press ENTER The splicer...

Страница 61: ...effectuates this process is PRINT SPLICELIST button Clean electrodes Splicelist handling YES Change list On Off NO Change list codes NO Print splicelist At this point you can press Yes to print out th...

Страница 62: ...between ticks along the transversal axis of the fiber Press ESC when you want to exit from advanced hot image analysis The next level of analysis includes three sets of graphs A On the far left are t...

Страница 63: ...eral functioning of the splicer The organization in sub groups is repeated by the order of editing you will find in flow chart form in Appendix C Parameter Function Range Default ENGLISH VERSION Mulit...

Страница 64: ...pact for measured data in the 0 00 low equation used by the Automatic 0 99 high Arc Re centering function RTC CURR LOL Low limit for RTC current 0 to 29 9 mA 14 5 mA RTC CURR HIL High limit for RTC cu...

Страница 65: ...fset in the upper view You then press the button to see the gap angles where L GAP ANGLE is the cleave angle of the left fiber and R GAP ANGLE is the cleave angle of the right fiber By pressing the bu...

Страница 66: ...his example the ALTITUDE is set for 1 km above sea level the adjusted prefusion current is 11 2 mA and the adjusted fusion current 1 is 11 7 mA To switch from one current to the next you successively...

Страница 67: ...FA and presents the output in a Microsoft Excel spreadsheet This allows you to monitor the performance of the splicer over time resulting in an overall improvement of splice quality as well as an incr...

Страница 68: ...to the power supply input 90 264 V AC output 12V DC Note that it takes approximately ten hours to charge an empty battery so plan in advance Do not charge the battery for a longer period of time since...

Страница 69: ...ooves blue and black and based on the kind of fiber you are splicing you will have to periodically exchange them To do so 1 Open the safety shield 2 Loosen the screw that fastens the V grooves with th...

Страница 70: ...e If a sizzling sound persists even after cleaning the electrodes with the brush and the electrode cleaning program you probably have to replace them which is explained susequently To access electrode...

Страница 71: ...trode Install the new electrodes by following the same procedure in reverse starting with step 8 and going backwards to 1 Lower electrode steps 5 8 5 Loosen and remove the knob on the right side of th...

Страница 72: ...n of lower light intensity curve due to build up on mirror one Maintenance time table E Maintenance should be an important part of your daily routine with the FSU 995 FA To make it easier for you to k...

Страница 73: ...D See NO FIBER FOUND See NO FIBER FOUND NO GAP FOUND The splicer can not locate the end Insert the fibers into the clamps again faces or the gap between them and or adjust the focus BAD LEFT GAP The s...

Страница 74: ...ault messages cont Fault message Possible causes Suggested corrective measures SELECT NOT PRESSED Duringthethresholdtypetest the Redo threshold type test COMPUTE THRESHOLD button was not pressed and t...

Страница 75: ...Align fiber in other view 2 Dirt on primary coating 2 Re prepare the fibers paying special V grooves and or fiber attention to cleaning both the fibers and V grooves Fibers twist up or down when Dirt...

Страница 76: ...nsing Monitor 3 high resolution LCD monitor Video output 1 V p p positive 75 ohms CCIR Size 37 x 22 x 14 5 cm W x D x H approx 14 6 x 8 7 x 5 7 in Weight 6 45 kg without power supply approx 14 2 lbs T...

Страница 77: ...an oval The editable area is indicated with a grey box Binary parameters which you toggle off and on with the YES and NO buttons and then select a state by pressing ENTER are indicated in the same fas...

Страница 78: ...tal 2101 Splices 101 E Reset splices E Splice counter Y N Y N Resets splice counter to 0 Change wait time N Change electrode warning N Change turn off N Set date time Wait time 1 0 min Electrode warni...

Страница 79: ...e xx x Y Y Change security type E N Y N Open Read only Confidential Y N Change program name xxxxx xx xx Pxx Y E Change fiber type Y Change process type N Y Normal splicing Hot core alignment Mode fiel...

Страница 80: ...factor ECF factor or Pull 3 Edit splicing parameters N Y Press VIEW to get program param eters in screen viewer Prefuse time 0 2 s N Re edit program Change security Y Press VIEW to get program parame...

Страница 81: ...e other service functions Y Electrodes cleaning program runs Splicing mode N Splicelist handling Y Splice list On Change splice list on off Y N Operator Number 00 Change list codes Y E List code 1 00...

Страница 82: ...cing processes erbium splicing Escape button 7 External monitor 74 F Fault messages 17 71 Faults observable 73 Fiber clamps 6 12 23 maintenance 67 Fiber fixtures 6 23 Fiber insertion 12 Fiber preparat...

Страница 83: ...36 46 Service functions 57 Service mode 59 Set center position 40 55 Set up checklist 8 Show loss to 62 Small core alignment See Splicing processes small core alignment Source program 45 Splice counte...

Страница 84: ...Bhd No 6 Lot 291 Jalan TP5 Taman Perindustrian UEP 47600 Petaling Jaya Selangor Darul Ehsan tel 6 037 047 888 Mexico Amherst Fiber Optics Brentwood Commons Two Suite 205 750 Old Hickory Blvd Brentwood...

Страница 85: ...83...

Страница 86: ...84 Ericsson Cables AB Network Products Landsv gen 66 S 172 87 Sundbyberg SWEDEN Tel 46 8 764 0900 Telex 14723 ERINET S Telefax 46 8 98 5503 133ST010 133TB001R1 Ericsson Cables AB c...

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