Fiber Optic Splice Closure VISSEM
1. Introduction 1.1 General VISSEM s SJOF-BS604A protects fiber optic splicing point in various installation conditions such as aerial, manholes, ducts, wall and direct buried applications. The flat type gasket ensures reliable sealing performance by preventing air and water leak and the corn type sealing socket provides easy and reliable installation. This closure has high mechanical strength against any environmental conditions. With VISSEM s SJOF-BS604A, you can improve your network system to the higher level. 1.2 Specifications BS604A Size (mm) L W H 174 x 211 x 522 Weight (kg) 2 No of Entry Ports 6 Ports Cable Dia.(mm) 8 ~ 24 No. of Splice Tray 4 Tray Capacity Splice Capacity Splice Method 12F 48F Fusion, Mechanical, Connector 2/12
1.3. Configuration B D G E A C F H I J K L M N O Items Descriptions Unit Q ty Remarks A Outer Body SET 1 B Splice Tray EA 2 Standard C Cable Inlet Port SET 1 D Heat Shrinkable Tube EA 2 E Splice Tray Band EA 1 F Unit Protection Tube EA No. of Splice Trays 2 G Aerial Hanger SET 1 Option H Cable Tie EA No. of Splice Trays 4 I Grounding Wire EA 4 Option J Band Clamp SET 1 K Cleanning Tissue EA 1 L Sand Paper EA 1 M Silver Foil Tape EA 2 N Silica Gel EA 1 O Splice Protection Sleeve EA 12 Option 3/12
2. Direction 2.1. Getting Started 2.1.1. Confirm the cable structure and the fiber type before starting the work. Different types of fibers cannot be spliced together. 2.1.2. Seal the splicing part perfectly to minimize cable damages by moisture. Do not apply any impact to the splicing part. 2.1.3. Keep the working place free from moisture or dust. Do not give any impact on the cables. Do not bend or twist cables. 2.1.4. During the sheath stripping and the closure assembly procedures, use permitted tools according to an approved fiber optic splicing standard in your region. 2.2. Cable Preparation 2.2.1. Secure the cables firmly on the working table. 2.2.2. Cut off about 1m from the cable end including the pulling eye. 2.2.3. Clean the cut area by using clean tissues. 2.3. Marking a Cutting Point 2.3.1. Mark a sheath removing point on the cable with a piece of tape at a 150cm point from the cable cut end. (Figure-1) [Figure-1] 4/12
2.4. Sheath Removing 2.4.1. Remove the cable sheath from the marked point by using a sheath stripper. (Figure-2) Note. Be sure not to damage the fiber optics. 2.4.2. Remove all plastic tape and dummy filler tubes. (Figure-3) 2.4.3. After trimming off dummy filler tubes, clean the loose tubes by using a jelly cleaner. [Figure-2] [Figure-3] 2.5. Cutting Tension Member (T/M) 2.5.1. Leave 14cm from the cable and cut off the tension member. (Figure-4) Note. Be careful not to cut loose tubes. 2.5.2. Remove PE coatings from the tension member if required. [Figure-4] 2.6. Cutting Cable Inlet Ports 2.6.1. Measure the cable diameter by using a cable ruler. 2.6.2. Select the appropriate cable inlet ports. (Figure-5) [Figure-5] 5/12
2.6.3. Cut cable inlet ports less than 3mm length from the end of the applicable ports by using a saw or equivalent tool. (Figure-6) [Figure-6] 2.7. Inserting Heat Shrinkable Tube 2.7.1. Insert the cable into the heat shrinkable tube from the loose tube end. (Figure-7) Heat Shrinkable Tube [Figure-7] 2.8. Inserting Cables 2.8.1. Insert the cable into the inlet port from the loose tube end. (Figure-8) Note. The surplus loose tubes are not to be cut and can be used later. [Figure-8] 6/12
2.9. LAP Grounding (if required) 2.9.1. Insert a LAP grounding wire tab deeply into the LAP sheath and clamp the cable sheath tightly with the other tab attached to the grounding wire by using pliers. (Figure-9) Note. There is no need to do additional job for tension member grounding. Grounding Wire [Figure-9] 2.10. Removing Loose Tubes 2.10.1. Leave about 4cm from the cable sheath end and remove the rest of the loose tube. (Figure-10) 2.10.2. Clean the cut area by using a jelly cleaner. Note. Be sure not to damage the fiber optics. [Figure-10] 2.11. Inserting Unit Protection Tube 2.11.1. Insert fibers into the unit protection tubes carefully all the way up to the point where loose tubes end and wrap the tape around the end point of protection tube at cable side. (Figure-11, Figure-12) Note. The unit protection tube is provided in different colors for unit identification. The colors are blue, orange, green, red, yellow and violet. Unit Protection Tube [Figure-11] [Figure-12] 7/12
2.12. Fixing Tension Member 2.12.1. Put the T/M (tension member) supporter cover on the T/M and tighten them together by using a screwdriver. (Figure-13) Note. When fixing the T/M, the T/M should not touch the splice tray for safety. [Figure-13] 2.13. Rubbing Port and Cable 2.13.1. Rub the inlet ports and the cable by using sandpaper and clean them by using cleaning tissue to allow the sealing adhesives inside of the heat shrink tube to bond to each side. (Figure-14, Figure-15) [Figure-14] [Figure-15] 2.14. Wrapping Silver Foil Tape 2.14.1. Wrap the silver foil tape around the cable 10cm from the inlet port to protect cable sheath. (Figure-16) Note. Be careful not to damage the silver foil tape. Silver Foil Tape [Figure-16] 8/12
2.15. Heating Heat Shrinkable Tube 2.15.1. Push the heat shrinkable tube up to the cable inlet port end and heat the tube starting at the inlet port moving away from it while controlling the fire. (Figure-17, Figure-18) Note. When heating the tube, heat the tube around the cable equally not overheating on specific part of it. [Figure-17] [Figure-18] 2.16. Arranging Unit Protection Tubes 2.16.1. Arrange the unit protection tubes considering the bending radius. 2.16.2. Insert the unit protection tube into the inlet on the splice tray and fix the unit protection tubes by using cable ties. (Figure-19) Note. Be careful not to damage the inner fibers [Figure-19] 2.17. Splicing and Storing Fibers 2.17.1. Preparation 2.17.1.1. Clean the working desk and check the fibers carefully. 2.17.1.2. Cut each fiber end carefully to make a perpendicular cut to the fiber axis. 2.17.2. Splicing 2.17.2.1. Splice fibers in accordance with splicing method to be approved. Note1. Be careful not to twist or bend fibers. Note2. There should be no damage or flaw on the cut area and keep the fibers from dust to minimize the data loss. Note3. Single mode fibers should be spliced together carefully to maintain a constant center axis. Note4. If there is any problems with the splice, then cut the splicing point and splice them again. 9/12
2.17.3. Arranging the splices 2.17.3.1. After the splice, insert the splice protection sleeve in each slit accordingly. 2.17.3.2. Coil surplus fibers in the tray in a figure 8 shape. (Figure-20) 2.17.3.3. After the arrangement, apply the O-ring into the slit and close the tray lid. 2.17.4. Record each splice on the index card on the lid. (Figure-21) [Figure-20] [Figure-21] 2.18. Stacking Splice Trays 2.18.1. Place the tray cover on the tray properly and stack the trays by using the connection parts on the side and repeat the splicing procedure. 2.18.2. After putting silica gel, tie the splice trays by using a splice tray band to be provided. (Figure-22) 2.18.3. Attach the surplus loose tubes on the splice tray supporter by using cable ties while maintaining the bend radius of R40. (Figure-23) [Figure-22] [Figure-23] 10/12
2.19. Assembling the Closure 2.19.1. Place the dome shaped outer body onto the bottom portion. (Figure-24) Note. Check the status of silicon gasket ring inserted in the slit of the dome shaped outer body. 2.19.2. Fasten the dome shaped outer body and the bottom portion together by using a band clamp. (Figure-25) [Figure-24] [Figure-25] 2.20. Mounting the Closure 2.20.1. Manhole Mounting 2.20.1.1 Connect two hangers to the body with bolts and nuts. (Figure-26) 2.20.1.2. Hang the closure on the hanger bar properly by using manhole hangers. (Figure-27) [Figure-26] [Figure-27] 2.21. External Grounding 2.21.1. Connect the external bonding wire to the ground terminal on the closure and connect the opposite end of bonding wire to a designated terminal. (Figure-28) Ground Terminal Bonding Wire [Figure-28] 11/12
The OPTICUBE has been made under strict quality control and tests. Our products passed several inspection criteria, specifications and other certification standards. The technical facts of the products are based upon reliable information, but the user should consider the usage and applicability of the product before operation. Sellers do not assume any liability resulting from improper use. The contents of this manual are made in lieu of all warranties, but sellers do not take the responsibility for any damage caused by users or any statements unrelated to this manual. VISSEM VISSEM ELECTRONICS Co., Ltd. 235-2 Deokpyeong-ri Majang-myeon Icheon, Gyeonggi-do Korea 467-812 Web: http://www.opticube.co.kr Email: djkang@vissem.com Tel: +82-31-288-3481 Fax: +82-31-283-7844 12/12