288 Cores Dome Heat Shrinkable Seal Fiber Optic Splice Closure FOSC Designed for Optimal Performance and Efficiency

1. Scope of application

This Installation Manual is suit 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, wall-mounting in duct and handhole. 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 the fixing bolt of insert plate with a special wrench. Put the fixing bolt into the hole with screw thread next to the fixing hole of the insert plate and push the insert plates out with the wrench.
• Use the special wrench to demount all the locating bolts on the housing as well as fixing bolts (it is also possible to install hanging hook according to the installation requirement) at four corners, then succeed in opening the closure.

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

• Fiber cable in 60mm length: the distance from seal fitting to fiber cable pressboard
• Fiber cable in 1950mm length: it is used to be winded and spliced after stripping.
• Fiber with protective coat in 350mm 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 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. 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 This FOSC is provided with 6 inlet/outlet ports. The inlet/outlet ports could be decided according to number and diameters of fiber cables to be actually installed, then the corresponding number of port plugs should be taken out.

5.4.3 This FOSC is suitable for the following diameters of fiber cables respectively:

Port A: suitable for fiber cable with max. diameter ф16mm

Port B: suitable for fiber cable with max. diameter ф13mm

5.4.4 The corresponding inlet/outlet ports are to be selected according to fiber cables actually installed. When the diameter of fiber cable is smaller than that of the inlet/outlet port, then the seal tape should be used to enlarge the diameter of fiber cable, of which the perimeter could be measured by the corresponding measuring paper (marked with Hole A, Hole B).

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 35mm length and cut off the unnecessary ones.

5.4.7 See Drawing 4.

Important Issues:

1. Before the seal tape is used for enlarging the fiber cable diameter, it should be scratched and to be cleaned with abrasive cloth and ethyl alcohol.
2. Cut off reinforced core with a special cutting plier.

5.5

Step Five - Fix reinforced core and fiber cable

5.5.1 Upon finishing the above steps, then demount port plugs, pressboard and fixing nut of reinforced core. Make sure to check whether the fiber cable stripped fits in with the fixing ports or not. If not, the adjustment should be done in time. Otherwise it will affect installation quality.

5.5.2 Tighten fiber cable pressboard. If the diameter of fiber cable is small, then enlarge it with insulation tape.

5.5.3 Tighten nut of reinforced core with the special wrench (plastic) and then retighten it with the metal wrench (the metal wrench should be provided by operator).

5.5.4 See Drawing 5

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 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 The fibers in the FOST are spliced and installed orderly. The curved diameter of fiber meets with the technical requirements.

5.8.2 The internal tighteners are tightened.

5.8.3 The inlet/outlet ports without fiber cables installed must be blocked up with the port plugs.

5.8.4 Control the amount of seal tape within a proper range.

5.8.5 Seal fitting is installed neatly and smoothly. If not, level it up with seal tape.

5.8.6 Seal the cover of seal fitting

5.8.7 See Drawing 7

5.9 Step Nine – Assemble FOSC housing and fix FOSC

5.9.1 Put the FOSC cover on the FOSC bottom directly.

5.9.2 Insert locating bolt of FOSC and tighten it with the special wrench.

5.9.3 Put the insert plates into the slot (one pair on each side, one piece with a hole with screw thread in the middle, the other with a hole without screw thread in the middle). Tighten bolts of insert plate with the special wrench .

5.9.4 If the FOSC is for aerial application, then put the hanging hook on one side of the closure and then tighten fixing bolts on both sides. Otherwise tighten the 4 fixing bolts at four corners respectively.

5.9.5 See drawing 8

Important issues:

• cleaning the housing and pay attention to the above sequence.

5.10 Step Ten - Fix FOSC .

5.10.1 Fixing the FOSC and tighten bolts in sequence as per drawing 9.

Important issues: Retighten in five minutes

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.^^

Established in 2000, Takfly Communication Co., Ltd. is a National High-tech Enterprise integrating R&D, production and sales. As a leading provider of optical connectivity equipment, Takfly has more than 22 years of design and manufacturing experience, and its business has expanded to more than 128 countries and regions. Takfly focuses on providing optical connection products for global customers, and provides customized optical fiber connection products for domestic and foreign operators, cloud service providers, main equipment manufacturers, system integrators, project engineers, aviation and medical fields, and optical research, ect. Takfly's main products: data center and FTTH passive optical devices, fiber management systems, WDM wavelength division multiplexers, polarization-maintaining and high-power products, fiber-optic active equipment, ect. Takfly has been qualified with ISO9001:2015 quality system certification and ISO14001:2015 environmental management system certification. Based on the management concept of “Quality is first, reputation is the most important, management is the foundation, and service is honest”and adheres to the principle of “survival by quality, development by quality, efficiency by quality”, customer-centric, sincere service to customers, customer satisfaction is the direction of our efforts. At present, our products have passed CE, ROHS, CPR EN50575 and ANATEL certifications to ensure the reliability and stability of each product and provide excellent services to our customers.

Takfly's production ranges from MPO/MTP Patch Cable, WDM/CCWDM/CWDM/DWDM, Fiber Optic PLC Splitter, Fiber Optic Cable, Fiber Optic Patchcord, Fiber Optic Pigtail, Fiber Optic Adapter, Fiber Optic Attenuator, Fiber Optic Patch Panel, Fiber Optic Termination Box, Fiber Optic Splice Closure, Fiber Optic Media Converter, Ethernet Switch, Fiber Optic Tool Kit.

So far, Our products have been widely installed in many big worldwide projects and work perfectly. Many project contractors ask the first and second operators to purchase fiber items from Takfly for their new projects. In addition, we also have built long-term cooperation with Vodafone, Telefonica, Orange, Movistar, and Ericsson.