Home / News / FTTH ODN Solution / How To Install Dome Type Fiber Optic Splice Closure?

How To Install Dome Type Fiber Optic Splice Closure?

Views: 1299     Author: Curry     Publish Time: 2022-03-31      Origin: www.fcst.com

Fiber Optic Splice Closure is used to connect the distribution cable and the incoming cable, is widely applied in communication, network systems, CATV cable TV and so on. It adopts scientifically formulated engineering plastic and be shaped by injection molding, with anti-aging, anti-corrosion, flame retardant, waterproof, anti-vibration and anti-shock effects. Can effectively prevent the optic fibers from the influence of outdoor environment.

171_How To Install Dome Type Fiber Optic Splice Closure? (1)

FCST012238 Dome Heat Shrinkable Seal Fiber Optic Splice Closure

Let us know today,How To Install Dome Type Fiber Optic Splice Closure?(Demonstrate with FCST012238 Fiber Optic Splice Closure.)

How To Install Dome Type Fiber Optic Splice Closure? (3)

1.1 Step One - Open the closure.

1.1.1 Cleaning the locale and determine where to install the FOSC and then place fiber cables required.

1.1.2 Check whether the main components and accessories have been well prepared inside the package.

1.1.3 Open the closure

1.Demount hoop fixing bolt and pull hoop locking system out, then proceed in demounting the hoop.

2.Pull the FOSC cover upwards out, installation could begin.

1.1.4 See Drawing 1

Important issues: If the weather condition is not good enough, then a tent must be pitched for waterproof and dustproof.

How To Install Dome Type Fiber Optic Splice Closure? (2)

How To Install Dome Type Fiber Optic Splice Closure? (4)

1.2 Step Two -Determine length of fiber cable to be fixed and stripped inside FOSC.

1.2.1 If all fibers are for branch splicing, please refer to Drawing 3(A) for stripping length.

1.2.2 If some fibers are for straight-through, while others are for branch splicing, please refer to Drawing 3(B) for stripping length.

1.2.3 See Drawing 2.

Important issues: 1. Reserve enough length of fiber cable to be spliced.

                            2. Stripping length also could be decided by customers according to installation requirement.

How To Install Dome Type Fiber Optic Splice Closure? (5)

How To Install Dome Type Fiber Optic Splice Closure? (6)

1.3 Step Three –Strip off protective coat of fiber cable and fiber.

1..3.1 Strip off protective coat of fiber cable from the temp. locating mark with the cutter and the stripper, please refer to Drawing 3f or stripping length. Stripping length also could be decided according to installation requirement

1.3.2 See Drawing 3.

                       Important issues: If it is difficult to pull all the protective coat of fiber cable at one time, strip it off section by section to avoid fiber breakage.

How To Install Dome Type Fiber Optic Splice Closure? (7)

1.4 Step Four – Separate fiber cores and prepare work prior to fixing fiber cable.

1.4.1 Wind 2 layers of insulation tape on protective coat of fiber core for protection. Meanwhile, get rid of the stuffing to separate fiber core and clean them. Form a ring with the diameter of 100mm or so and fix it on the fiber temporarily by adhesive tape.

1.4.2 Depending on fiber cable stripped, the following two cases are available.

    1.All fibers are to be branched after being spliced completely.

    2.Some of fibers are for straight-through after being winded, while the others are for branch splicing.

1.4.3 The FOSC is provided with 5 single entry/exit tubes which suit for single fiber cables with max. diameter ф20 mm and 1 mass entry/exit tube which suits for 1piece of fiber cable with max. diameter ф 32mm or 2 pieces of fiber cables with max.diameter ф 25mm or multi-pieces of fiber cables with short diameter.

1.4.4 Mass entry/exit tube is required if some fibers are for straight-through

1.4.5 The corresponding entry/exit tube cover could be slightly knocked out with screwdriver from inside to outside according to number and diameter of fiber cable required.

1.4.6 Reserve reinforced core in 35mm length and cut off the unnecessary ones.

1.4.7 See Drawing 3.

Important Issues:Entry/exit tubes are to be selected accurately to make it easy for splicing and sealing.

1.5 Fix reinforced core, and pyrocondense, fix and seal fiber cable.

1.5.1 Insert fiber cable into the corresponding heat shrinkable fixing tube, further insert the them into entry/exit tube at the bottom of FOSC.

1.5.2 Use to loosen the screwsof reinforced core with a screwdriver, which is to be inserted into the fixing slot afterward and tighten it. Then retighten it with a screwdriver .

1.5.3 Hitch heat shrinkable fixing sleeve to the fiber cable till its root by hand.

1.5.4 Please refer to Drawing 5 for installing branching clip.

1.5.5 Heat heat shrinkable fixing sleeve with fire sprayer to make it hugging entry/exit tube and fiber cable to reach complete sealing.

1.5.6 See Drawing 5

important issue: 1. Screws of reinforced core should be tightened.

                           2. While heating, heat shrinkable fixing tube should shrink evenly, and there should be no bubbles, pores and other defects inside the tube.

How To Install Dome Type Fiber Optic Splice Closure? (8)

1.6 Step Six - Splice fibers.

1.6.1 Follow user manual of fusion splicing machine to splice fiber.Important issue: pay attention to the twist and bend of fiber

1.7 Step Seven -Install heat shrinkable protective sleeve and house fibers.

1.7.1 When having completed splicing the fibers, the first fiber ring should be housed on the farthest side of FOST, the remaining fiber optic 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.)

1.7.2 see Drawing 6

        Important issue: pay attention to the twist and bend of fiber.

How To Install Dome Type Fiber Optic Splice Closure? (9)

1.8 Step Eight - Check up comprehensively.

To ensure the technical requirements, the following instructions must be followed:

1.8.1 Fibers with protective coat are fixed with nylon tie at the entrance of FOST.

1.8.2 Grommet should be pressed from inside to outside in order to properly install FOST.

1.8.3 Straight-through and reserved fibers with protective coat should be winded to the fiber holding tray.

1.8.4 Check whether the internal tighteners and fixing nut of reinforced core are well tightened.

1.8.5 Check whether seal fitting is installed neatly and smoothly.

1.8.6 Check whether heat shrinkable fixing sleeve is reliable and sealing completely.

1.8.7 See Drawing 4.

Important issues: If any problems occur, they should be solved right away

1.9 Step Nine – Assemble FOSC housing and fix FOSC.

1.9.1 Put desiccant into FOSC.

1.9.2 Put FOSC cover on base directly.

1.9.3 Install plastic hoop between FOSC cover and base, tighten hoop locking system,which is to be fixed by hoop fixing bolt then.

1.9.4 FOSC installation

1. Strand Overhead application: Fasten the steel wire with a metal clip. Please refer to Drawing 7

2.Pole application: fix metal hoop and transom to the pole. Please refer to Drawing 8

3.Wall mounting application: fix the bracket on the wall with bolt. (metal hoop is not required.)Drawing 9

4.Underground application: metal hoop is not required.

Important issues: 1. Pay attention while installing plastic hoop.

2. The specification of bolt for fixing the bracket is M8.

How To Install Dome Type Fiber Optic Splice Closure? (1)


If you are still confused about the installation of Fiber Optic Splice Closure. You can send email to sales@fcst.com or contact Whatsapp No. +8618720624696 for Learn about product or more details. Looking forward to your call.

Contact us
Contact Us

Contact Us

  +86 21 3872 6791
 +86 21 3872 6792
  Rm402 block A Watts gallop tower No.2816 YiXian Rd, BaoShan District, Shanghai 200441.
Our Products

Our Products



Quick Links

Quick Links

©2021 Fiber Cable Solution Technology Co.,Ltd. All Rights Reserved.