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, underground, wall-mounting, duct-mounting and handhole- mounting. The ambient temperature ranges from –40℃ to +65℃.

2. Basic structure and configuration

2.1 Dimension and capacity

2.2 Main components

2.3 Main accessories and special tools

3. Necessary tools for installation

3.1 Supplementary materials (to be provided by operator)

3.2 Special tools (to be provided by operator)

3.3 Universal tools(to be provided by operator)

3.4 Splicing and testing instruments (to be provided by operator)

Notice: The above-mentioned tools and testing instruments should be provided by the operators themselves.

4. Installation flow chart

5. The process of installing FOSC.

5.1 Step One - Open the closure

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

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

5.1.3 Open the closure

• Demount hoop fixing bolt and pull hoop locking system out, then proceed in demounting the hoop.
• Pull the FOSC cover upwards out, installation could begin. 5.1.4 See Drawing 1

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

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

5.2.1 If all fibers are for branch splicing, please refer to Drawing 2(A) for stripping length.

5.2.2 If some fibers are for straight-through, while others are for branch splicing, please refer to Drawing 2(B) for stripping length.

5.2.3 See Drawing 2.

Important issues:

• Reserve enough length of fiber cable to be spliced.
• Stripping length also could be decided by customers according to installation requirement

5.3 Step Three –Strip off 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 pull 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 cable.

5.4.1 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.

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

• All fibers are to be branched after being spliced completely.
• Some of fibers are for straight-through after being winded, while the others are for branch splicing.

5.4.3 The FOSC is provided with 3 single entry/exit tubes which suit for single fiber cables with max. diameter ф16mm and 1 mass entry/exit tube which suits for 1 piece of fiber cable with max. diameter ф 25mm or 2 pieces of fiber cables with max. diameter ф 21mm or multi-pieces of fiber cables with short diameter.

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

5.4.5 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.

5.4.6 Reserve reinforced core in 70mm length and cut off the unnecessary ones.

5.4.7 See Drawing 4 and Drawing 5.

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

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

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

5.5.2 Demount fixing nut of reinforced core with a special wrench (plastic one), which is to be inserted into the fixing slot afterward and tighten it. Then retighten it with a metal wrench (the metal wrench is to be provided by operator).

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

5.5.4 Please refer to Drawing 5 for installing branching clip.

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

5.5.6 See Drawing 5

important issue:

• Fixing nut of reinforced core should be tightened.
• While heating, heat shrinkable fixing tube should shrink evenly, and there should be no bubbles, pores and other defects inside the tube.

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

5.7 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 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.)

5.7.2 see Drawing 6

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

5.8 Step Eight - Check up comprehensively

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

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

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

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

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

5.8.5 Check whether seal fitting is installed neatly and smoothly.

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

5.8.7 See Drawing 7.

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

5.9 Step Nine – Assemble FOSC housing and fix FOSC

5.9.1 Put desiccant into FOSC.

5.9.2 Put FOSC cover on base directly.

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

5.9.4 FOSC installation

1. Aerial application: fix metal hoop and transom to the pole. Please refer to Drawing 8
2. Wall mounting application: fix the bracket on the wall with bolt. (metal hoop is not required.)
3. Underground application: metal hoop is not required.

5.9.5 See drawing 8

Important issues:

• Pay attention while installing plastic hoop.
• The specification of bolt for fixing the bracket is M8.

FQA :

1. Q: Are you a manufacturer?
A: yes, we are a manufacturer , FTTH solution and data center total solution provider in Shenzhen, China, established in 2000.

2. Q: What's your MOQ?
A: MOQ can be 1 pcs, but the price is not competitive. More quantity,the price will be more competitive.


3. Q: How is your quality?
A: Our production is according to IEC, Europe standard. CE, ISO, RoHS, CPR, and ANATEL certified.

All the products are 100% test before delivery.

4. Q: What's your lead time?
A: It depends on the quantity and products. For fiber optic patch cord, the lead time can be 3-5 working days within 5000 pcs. We keep the regular products in stock. Also, we can deal with urgent orders.

5. Q: What's your packing?
A: International export standard package.If you need to print your logo on the packing, please let us know before we quote.

6. Q: Can you offer OEM/ODM?
A: yes, we can. all products accept OEM /ODM. we can sign the Confidentiality Agreement.

7. Q: Can I have a sample?
A: It depends on which products, Free sample provide under 10 usd. Freight will be paid by buyer before delivery.

8. Q: How can I order?
A:1.send mail or inquiries with product name, specification, and quantity to us . Provide your receive address if you need FOB,CIF,CFR price.

2.We will offer our quotation with lead time.

3.After the quotation confirmed, we will send a PI with our bank account.

4.Production will be arranged after the payment received.

5.Confirm the consignee with you before we deliver it.

6.The tracking number will be provided after the delivery.

9.what is your payment term?
A: T/T, Western Union, Paypal, MoneyGram at once. For big amounts, can be 50% deposit in advance, 50% balance paid before delivery.

With the same quality standard, if you could get better price from the market, TAKFLY also could support you same price.

3 years work experience in optical fiber industry, It's honored to be your professional product assistant.^^