China Supplier 12-24 Fiber Optic Joint Splice Closure
Description
1. Mechanical seal: Excellent seal performance, reusable. Protection grade is IP68.
2. Installation method: Wall-mounted, pole-mounting, manhole
3. L× W× H: 280× 200× 90MM
4. Cable ports: 2-4 ports
5. Cable Diameter: Max φ 14
6. Max. Capacity (bunchy fiber): 96
7. Core capacity per tray: 12 or 24
Characteristic
1. Easy to re-enter Cable entry/exit ports
2. Pressure testing valve and earth deriving device
3. Intergrated seal, air tight and water proof Ideal for cable repair
4. RoHS compliant Can be used in through, branch or mid span splice locations
5. Suitable for aerial, underground duct or direct burial applications
| Item |
Parameters |
| 1 |
L×W×H |
280×200×90MM |
| 2 |
Cable ports |
2-4 ports |
| 3 |
Cable Diameter |
Max φ14 |
| 4 |
Max.Capacity (bunchy fiber) |
96 |
| 5 |
Core capacity per tray |
12 or 24 Holds up to 96 fibers |
| 6 |
Box material |
Modified polymer plastic |
1. Scope of application
This Installation Manual suits for the Fiber Optic Splice Closure (Hereafter abbreviated as FOSC), as the guidance of proper installation.
The scope of application is: aerial and wall-mounting. The ambient temperature ranges from -40 to 65ºC.
2. Basic structure and configuration
2.1 Dimension and capacity
| Outside dimension (LxWxH) |
280x200x90 (mm) |
| Weight (excluding outside box) |
1200g-1500g |
| Number of inlet/outlet ports |
max. 4 pieces |
| Diameter of fiber cable |
Φ8-Φ14 (mm) |
| Capacity of FOSC |
Bunchy: 6-96 (Cores) |
2.2 Main components
| No. |
Name of components |
Quantity |
Usage |
Remarks |
| 1 |
FOSC cover |
1 piece |
Protecting fiber cable splices in whole |
Internal diameter:
205x146 (mm) |
| 2 |
FOSC bottom |
1 piece |
Fixing reinforced core, fiber cable and FOST |
Internal diameter:
205x146 (mm) |
| 3 |
Fiber optic splice tray
(FOST) |
max. 4 pieces (bunchy) |
Fixing heat shrinkable protective sleeve and holding fibers |
Suitable for:
Bunchy:6,12,24(cores) |
| 4 |
Integrated seal fitting |
1 set |
Sealing between FOSC cover and FOSC bottom |
|
| 5 |
Port plug |
2 pieces |
Sealing empty ports |
|
| 6 |
Earthing deriving device |
1 set |
Deriving metallic components of fiber cable in FOSC for earthing connection. |
Configuation as per requirement. |
2.3 Main accessories and special tools
| No. |
Name of accessories |
Quantity |
Usage |
Remarks |
| 1 |
Heat shrinkable protective sleeve |
|
Protecting fiber splices |
Configuration as per capacity |
| 2 |
Nylon tie |
|
Fixing fiber with protective coat |
Configuration as per capacity |
| 3 |
Seal tape |
1 roll |
Enlarging diameter of fiber cable which fits in with seal fitting |
Configuration as per specification |
| 4 |
Hanging hook |
1 set |
For aerial use |
Configuration as per requirement |
| 5 |
Fixing device |
1 set |
|
Configuration as per requirement |
| 6 |
Earthing wire |
1 piece |
Putting through between earthing devices |
To put through while required |
| 7 |
Abrasive cloth |
1 piece |
Scratching fiber cable |
|
| 8 |
Labeling paper |
1 piece |
Labeling fiber |
|
| 9 |
Special wrench |
1 piece |
Fixing octagonal nut (plastic) |
|
| 10 |
Buffer tube
|
To be decided by customers |
Hitched to fibers and fixed with FOST, managing buffer |
Configuration as per requirement |
| 11 |
Desiccant |
1 bag |
Put into FOSC before sealing for desiccanting air. |
|
3. Necessary tools for installation
3.1 Supplementary materials (to be provided by operator)
| Name of materials |
Usage |
| Scotch tape |
Labeling, temporarily fixing |
| Ethyl alcohol |
Cleaning |
| Gauze |
Cleaning |
3.2 Special tools (to be provided by operator)
| Name of tools |
Usage |
| Fiber cutter |
Cutting off fibers |
| Fiber stripper |
Strip off protective coat of fiber cable |
| Combo tools |
Assembling FOSC |
3.3 Universal tools (to be provided by operator)
| Name of tools |
Usage and specification |
| Band tape |
Measuring fiber cable |
| Pipe cutter |
Cutting fiber cable |
| Electrical cutter |
Take off protective coat of fiber cable |
| Combination pliers |
Cutting off reinforced core |
| Screwdriver |
Crossing/Paralleling screwdriver |
| Scissor |
|
| Waterproof cover |
Waterproof, dustproof |
| Metal wrench |
Tightening nut of reinforced core |
3.4 Splicing and testing instruments (to be provided by operator)
| Name of instruments |
Usage and specification |
| Fusion Splicing Machine |
Fiber splicing |
| OT DR |
Splicing testing |
| Provisional splicing tools |
Provisional testing |
Notice: The above-mentioned tools and testing instruments should be provided by the operators themselves.
4. Installation flow chart
The process of installing FOSC
Step One - Open the closure
Cleaning the locale and determine where to install the FOSC and then place
Check whether the main components and accessories have been well prepared
inside the package.
Open the closure by demounting the fixing bolt (5 pieces) of the housing, then succeed in
opening the closure.
See Drawing 1
Important issues: If the weather condition is not good enough, then a tent must be pitched
for waterproof and dustproof.
5.2 Step Two -Determine length of fiber cable to be fixed and stripped inside FOSC
5.2.1 . Fiber cable in 70mm length: the distance from seal fitting to fiber cable pressboard
. Fiber cable in 1720mm length: it is used to be winded and spliced after stripping.
. Fiber with protective coat in 120mm length: the distance from the fixing point of fiber cable to the fixing point of FOST (fiber optic splice tray).
. Fiber in 1600mm length: after stripping off the protective coat, it is to be winded inside the FOST after splicing with other fibers
5.2.2 See Drawing 2
Important issues:
Reserve enough length of fiber cable to be spliced.
Stripping length also could be decided by customer according to installation requirement.
5.3 Step Three - Strip off fiber protective coat of fiber cable and fiber
5.3.1 Strip off protective coat of fiber cable from the temp. locating mark with the cutter and the
stripper, please refer to Drawing 2 for stripping length. Stripping length also could be
decided according to installation requirement
5.3.2 See Drawing 3.
Important issues: If it is difficult to strip off all the protective coat of fiber cable at one time,
strip it off section by section to avoid fiber breakage.
5.4 Step Four - Separate fiber cores and prepare work prior to fixing fiber.
Wind 2 layers of insulation tape on protective coat of fiber core. Meanwhile, get rid of
the stuffing to separate fiber and clean them. Form a ring with the diameter of 100mm
or so and fix it on the fiber temporarily by adhesive tape.
This FOSC is provided with 2 inlet/outlet tubes, each of which suit for 1 piece of fiber
cable with max. diameter ф14mm or 2 pieces of fiber cable with max. diameter
ф11mm. The corresponding port plug could be taken out according to number of fiber
cable actually required. The max. number of fiber cables with diameter ф11mm to be installed is 4.
5.4.3 Reserve reinforced core in 30mm length and cut off the unnecessary ones.
5.4.4 See Drawing 4
Important Issues: Cut off reinforced core with a special cutting plier.
5.5 Step Five - Fix reinforced core and fiber cable
5.5.1 After deciding number of fiber cable inlet/outlet, demount the nut and gasket of the
corresponding inlet/outlet tube. Insert them into fiber cables in sequence, which are to be
inserted into inlet/outlet tube then.
Fix fiber cable to fixing device of fiber cable (while diameter of fiber cable is small,
enlarge the diameter with insulation tape), then fix the reinforced core to the fixing device
of the reinforced core.
Push the first gasket into inlet/outlet tube, then enlarge the diameter of fiber cable with
seal tape (to fit in with internal diameter of inlet/outlet tube). Then push the second
gasket and the seal tape into inlet/outlet tube, which is to be tightened with octagonal
nut.
See Drawing 5
Important issues: before the seal tape is used for enlarging the diameter of fiber cable, it should be scratched and to be cleaned with abrasive cloth and ethyl alcohol.
5.6 Step Six - Splice fibers
5.6.1 Follow user manual of fusion splicing machine to splice fiber.
Important issue: pay attention to the twist and bend of fiber.
Step Seven -Install heat shrinkable protective sleeve and house fibers
5.7.1 When having completed splicing the fibers, the first fiber ring should be housed
on the farthest side of FOST, the remaining fiber should be winded, forming a ring
with diameter not less than 80mm. then put it into FOST (Fiber Optic Splice Tray)
together with heat shrinkable protective sleeve.
( Firstly fix heat shrinkable protective sleeve into the slot, then enlarge the diameter of
fiber ring properly.)
5.7.2 see Drawing 6
Important issue: pay attention to the twist and bend of fiber.
Step Eight - Check up comprehensively
To ensure the technical requirements, the following instructions must be followed:
Fibers with protective coat are fixed with nylon tie at the entrance of FOST.
Grommet should be pressed from inside to outside in order to properly install FOST.
Check whether the internal tighteners and bolt of reinforced core is well tightened
Check whether integrated seal fitting is installed neatly and smoothly without any breakage. If not, level it up with seal tape.
See Drawing 7.
Important issues: If any problems occur, they should be solved right away.
5.9 Step Nine - Install FOSC housing
5.9.1 Tighten fixing bolts of the housing
5.9.2 Tighten octagonal nuts
5.9.3 Either wall mounting or aerial mounting is possible according to the actual installation
requirement.
Wall mounting application: fixing device for wall mounting should be installed at the
bottom of FOSC, which is to be fixed with plastic intumescent screw and bolts.
Aerial mounting application: fix hanging hook on the wall.
5.9.3. See drawing 8
Important issues: 1. Clean the housing
2. Tighten bolts in sequence.
6. Fiber Optic Splice Closures (FOSC) inspecting and testing items
| Inspecting item |
Technical Requirements |
Inspecting type |
| Routine test (Before leaving factory) |
Type test |
| Package |
Each small package contains one fiber optic splice closure, together with its accessories, tools, installation manual and packing list. |
full |
At least 3 sets sampled each time
|
| Appearance |
Intact in shape, no burrs, bubbles, chaps, pores, warps, impurities and other defects, all background colors should be even and continual. |
| Sign |
There is a clear sign on the housing, such as name and model of the product, etc. |
| Fiber storage device |
The fibers reserved are to be winded in fiber optic splice tray (FOST), the length of fibers housed in FOST is >1.6m, the curved radius is >30mm. During the installation and maintenance, there should be no attenuation on fibers. |
At least 3 sets sampled each time
|
| Electrical jointing device |
Inside FOSC: metallic components of fiber cables has the functions of electrical putting through, earthing connection and disconnecting. It is possible to install earthing deriving device outside the housing |
| Sealing performance |
After sealing according to the stipulated operation procedures, the injected air pressure is 100KPa±5Kpa, when immersed in clean water of normal temperature for 15 minutes, there should be no air bubbles, then observed for 24 hours, there should be no change of air pressure. |
| Re-sealing performance |
After reopening and resealing according to the stipulated operation procedures, the injected air pressure is 100KPa±5Kpa, when immersed in clean water of normal temperature for 15 minutes, there should be no air bubbles, then observed for 24 hours, there should be no change of air pressure. |
| Pull |
Bearing pull is >= 800N at axle orientation, there should be no breakage on the housing. |
| Punching |
Bearing pressure of 2000N/10cm for 1 minutes, there should be no breakage on the housing |
| Impact |
Bearing impact energy of 16N•m, 3 times of impacts there should be not breakage on the housing |
| Bending |
The spot between the FOSC and seal fitting can bear bending tension of 150N at bending angle of ±450 for 10 circles, there should be no breakage on the housing |
|
|
| Torsion |
Bearing torsion 50N•m, 10 circle at torsion angle±900,
There should be no breakage on the housing. |
| Temperature circle |
Injected air pressure of 60KPa±5 KPa, the temperature circle ranging from -40ºC~+65ºC, 10 times of the circular tests (one circular consists of high temperature for 2 hours + indoor temperature for 2 hours + low temperature for 2 hours + indoor temperature for 2 hours ) when the pressure declines, the amplitude is <=5Kpa, immerse the swatch in clean water of normal temperature for 15 minutes, there should be no air bubbles. |
| Voltage resistance strength |
After sealing the FOSC according to the stipulated operation procedures, immerse it in clean water of normal temperature in 1.5m depth for 24 hours, there should be no breakdown or arc over between the metallic components of the FOSC, between metallic components and the ground at DC 15KV for 1 minutes. |
| Isolating resistance |
After sealing the FOSC according to stipulated operation procedure, immerse it in clean water in 1.5m depth for 24h, the isolating resistance between the metallic components of the FOSC, between the metallic components and the ground should be >= 2×104MΩ. |
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