FIBER OPTIC SPLICE CLOSURE

Transcription

1 SPECIFICATION FIBER OPTIC SPLICE CLOSURE Model Spec. No. Distribution Depts. VSOF-MN401A VSS-0911-OFC-01A Quality Assurance Team Manufacturing Division Sales Division Management Division Revision (Rev.1) Prepared by Reviewed by Approved by R&D Center Engineer R&D Center S. Chief R&D Center G. Manager PAGE 1 / 10

2 1. INTRODUCTION 1.1. General This specification covers the design requirements and characteristics required of fiber optic splice closures to be used on fiber optic cables for branch joint in various installation conditions such as aerial and mounting applications. It is specially designed for FTTH network system. So, we firmly believe that we can provide excellent reliability as minimize weight cable mechanical assembling system with in-line type closure. This closure is adapted by only 2c/4c self-supporting micro mini cable(3.5mm), and has four cable port on each side. This closure has high mechanical strength against any environmental conditions. With this splice closure, you can improve your network system to the higher level Description Fiber Optic Splice closure for fiber optic cable may be exposed to severe environmental conditions. The splice closure for fiber optic cable shall provide excellent durability and longterm reliability in those severe conditions Reliability The quality of a fiber optic splice closure is critical to reliable optical transmission performance. The product shall be produced with ISO-9001 certified production facilities and quality control system is applied the process from product design to packaging Classification MN401A A - T1 8C (1) (2) (3) PAGE 2 / 10

3 No. Title Example Descriptions Remarks. A Arial type (1) Installation condition W Wall type P Pole type (2) No. of Splice tray T0 T1 Splice closure without splice tray Splice closure with 1-splice tray (4) Fiber Count 8C 16C Splice closure for 8 fiber optic cable Splice closure for 16 fiber optic cable 1.5 Reference Korea Telecom Generic Requirements KT-T Korea industrial standard KS A 0101 Mathematical Symbols Korea industrial standard KS A 0102 Quantity Symbols, Unit Symbols and chemical Symbols Korea industrial standard KS A 0105 SI units and recommendations for the use of their multiples and of certain other units Korea industrial standard KS A 0108 Pictorial Marking for Handling of Goods Telcordia GR-771-core Generic Requirements for Fiber Optic Splice Closures 2. FIBER OPTIC SPLICE CLOSURE 2.1. General The closure consists of outer cases, gaskets, tray. The closures have four main entry ports on each end. The outer cases consists of the four ports and constructed of highly chemical resistant material. The trays are able to accommodate 16 individual fiber fusion splices PAGE 3 / 10

4 2.2. Configuration The ribbed body has high mechanical strength against impact and compression Fixing the sheath gasket and the external screw bolts provide excellent tightness reliability The sheath gasket is only fit 3.5 diameter cable The closure can be installed in aerial and messenger wire with provided hangers. PAGE 4 / 10

5 2.3. Specification Item Size (L*W*H) Weight (kg) MN401A 200*180*72mm 1.0 (except fixing bracket) Inlet ports(max) 8 Cable Dia. (mm) Φ3.5/ subminiature fiber cable No. of splice tray 1 Tray capacity 8F (Max. 16F) Splice capacity Splice method Splice protector 16F Fusion, Mechanical Heat shrinkable sleeve, Ribbon protection sleeve, Mechanical splice 2.4. Feature Body (1) Ribbed cover for greater impact and compressive strength (2) After pick out the tray,work possible. PAGE 5 / 10

6 Sheath Gasket (1) Sheath gasket made of silicone for proven water tightness. Cable Dia. (mm) 3, Cable Clamping (1) Mechanical cable clamping. (2) For each sheath holder, two fiber cable can fix (3) Convenient installation and maintenance with the divided structure from the lower part. PAGE 6 / 10

7 Splicing Part (1) 2 inlet parts in the tray, available to meet the requirements for FTTH network (2) Double layered storage (maximum 16 fibers by inserting two sleeves in one slit) (3) Loose tube, mechanical splice are applicable. 3. TEST PROCEDURE 3.1. General This section specifies the Fiber Optic Splice Closure and its material physical, chemical environmental and mechanical requirements and the tests to be applied for the determination of compliance to these requirements Sample means all completed assembling closure that finished bonding, grounding and connecting equipments For all measures of optical attenuation need to splice and for the measures of just a mechanical performance test(no need for optical attenuation test), insert the cable into the splice closure Optical fiber shall be fusion spliced to minimize effect from test environment and shall be protected by heat shrinkable protection sleeve at the splice point The samples of cable for a performance test shall be prepared with middle size of diameter which is available The wavelength for measurement of optical attenuation shall be 1550±30nm or 1310±20nm and stability shall be under ±0.01dB PAGE 7 / 10

8 Test will be completed with temperature 20±5 if there is no and special regulation 3.2. Mechanical characteristics. Item Test Conditions Requirements Cable clamping Measure the loss after 3 fiber splicing. Assemble the closure Measure and compare the loss variation No greater than ± 0.05dB Sheath Retention Mount the closure in a fixture and measure the initial loss Apply an axial load of 5kg After 30 minutes compare the loss. Vertical Drop Compression Impact Vibration Condition the closure at -20±2 for 2 hrs. Drop the closure onto a 1/2inch thick concrete floor from 75cm height. Condition the closure at -20±2 for 2 hr. Measure the diameter or vertical dimension. Apply a weight of 90kg on 5cm2 area for 15minutes. Unload a weight and measure the dim. Repeat the above procedure at 40±2. Condition the closure at -20±2 for 2 hr. Impact a closure using a drop-tube from 1m Impact level: 2.4kg, 2.54cm Measure the loss after 2 fiber splicing. Amplitude : 1.0mm(peak to peak) Frequency : 10~55Hz Direction : X,Y(2 hours at each direction) No water inundation No water inundation No water inundation No greater than ±1.0dB(on test) No greater than ±0.1dB (after test) No water inundation PAGE 8 / 10

9 3.3. Environmental characteristics Item Test Conditions Requirements Temperature and Humidity Measure the loss after 3 fiber splicing. Assemble the closure Temp. cycle -30~60 20Cycle (1cycle is 7hours) No greater than ± 0.1dB Chemical resistance solution: ph2 HCL, NaOH, 10% IGEPAL Submerge for 120hours into the solution. Impact/compression Test Shall be no change in mechanical integrity or sealing ability. 4. DELIVERY 4.1. Packing The Closure shall be packed as a complete kit containing all components necessary for installation. Each item is to be covered with a protective material to prevent scratching or damage during shipping or storage. Complete assembly and installation instructions in English shall be provided with each packaged unit Marking The details given below shall be distinctively marked in English with a weatherproof material on at least two sides of the shipping carton. The company to be delivered The product item Country of origin Manufacturer's name and/or trademark Date of manufacture Caution mark Each Closure shall be marked with the company, the month and year of manufacture and the trademark and/or name of manufacturer in legible color. PAGE 9 / 10

10 5. All of Components No. Item Unit Quantity Remark 1 Cover ea 1 2 M6 L10 bolt ea 4 3 M6 spring ea 4 4 Body ea 1 5 Tray ea 1 6 Tray cover ea 1 7 Tray chip o-ring ea 1 8 Cable guide ea 2 9 Sealing socket ea 4 10 Main gasket ea 1 11 Sheath holder-1 ea 4 12 Sheath holder-2 ea 4 13 Roundheaded tapping bolts ea 8 14 M4*L15 bolts ea 4 15 Telephone pole bracket ea 2 16 M5*L18 bolt ea 4 17 Cable tie 100mm ea 6 18 High vacumn grease ea 1 19 Grease brush ea 1 20 Silica gel ea 1 21 Cleaner ea 1 22 Zipper bag ea 1 23 Manual ea 1 24 Label ea 1 25 Box ea 1 26 Messenger wire bracket ea 2 Option 27 M5*L18 bolt ea 2 Option PAGE 10 / 10