576-core ODF optical fiber distribution frame model specifications, co-built shared optical fiber distribution cabinet "three-in-one optical fiber distribution frame" | ODF optical distribution frame (Optical Distribution frame) ODF optical fiber distribution frame | ODF optical fiber distribution cabinet ( ODF distribution cabinet capacity: 144 cores, 288 cores, 360 cores, 432 cores, 480 cores, 576 cores, 648 cores, 720 cores, 864 cores, 960 cores, 1152 cores, People's Republic of China communications industry standard optical fiber distribution frame YD/T 778-2006 "optical fiber distribution frame" Q/CT 2354-2011 "China Telecom optical distribution frame technical requirements" | FTTH access layer Fiber Optic Distribution frame (Fiber Optic Distribution frame), also known as fiber distribution cabinet , It is used for the termination, protection, connection and management of optical cables and optical fibers in optical fiber communication networks. This device can realize the functions of fixing, stripping, and earthing protection of optical fiber cables, as well as welding, skipping, redundant fiber coiling, reasonable deployment, and wiring scheduling of various optical fibers. It is a transmission medium and a transmission device. Grouped equipment
A. Introduction
Optical fiber distribution frames are equipment used to terminate, protect, and manage fiber optic cables and optical fibers. The optical fiber cable can be fixed, stripped and grounded in the cabinet; the functions of the optical fiber splice, wiring connection, redundant pigtail winding, and wiring scheduling are the transmission media (optical cable, optical fiber) and transmission equipment. Wiring connection equipment between.
The optical fiber distribution cabinet is a high-capacity, high-density, full-front operated optical fiber distribution cabinet developed by our company. It also applies to ordinary optical cables and ribbon optical cables. This rack consists of cabinets, optical fiber storage units, fiber unit bodies, and fiber optic direct-wiring units. Due to the modular structure, the user can flexibly install according to the number of configuration function modules of the capacity.
II. Main performance indicators
1) Operating temperature: -5°C to +40°C
2) Relative humidity: ≤85% (+30°C)
3) Atmospheric pressure: 70Kpa to 106kpa
2. Optoelectronic performance:
1) Connector loss (including insertion, swap, and repeat) ≤ 0.5
2) Interchangeability additional loss ≤ 0.2
3) Repetitive additional loss ≤ 0.1
4) Return loss ≥40dB
5) Plug durability life> 1000 times
6) The cabinet is insulated from the cabinet by high-voltage protection. The insulation resistance is> 1000MΩ/500V (DC).
7) The voltage between the cabinet high-voltage protection ground and the cabinet is more than 3000V(DC), 5S does not breakdown, no arcing
3. Applicability index:
1) Nominal operating wavelength: 850nm, 1310nm, 1550nm.
2) Optical fiber connector: Meet the requirements of GB12507 and related standards.
3) Fiber-optic cables should meet the requirements of GB/T11819 and GB/T7424.
4. Dimensions and Capacity:
1) Overall dimensions * 400 (H × W × D) (mm).
2) Larger capacity: 1440 cores.
Three. Installation
The cabinet is an international standard universal 19′′ cabinet. The imported electrolytic board is manufactured by a special process with a plastic surface treatment. The appearance is beautiful. The bottom of the cabinet is fastened to the ground with four M10×80 expansion screws (with optional accessories). The connection piece is fixed with the diamond nut and the cabling channel in the machine room.
1) Use and operation
1, optical fiber stripping, fixing and protection
2, the cable from the top or bottom of the cable into the hole into the frame
3, Stripping and fixing of ribbon cable
The cable stripping length is: 2.5m + the distance from the cable stripping point to the far distance of the welding wiring module (depending on the actual situation), 40mm for the armor layer, 150mm for the center reinforcing core (55mm for the reinforcing cores on both sides) );
Put the heat-shrinkable tube on the stripping place of the optical fiber cable and heat it with a hair dryer so that the heat-shrinkable tube will tightly cover the fiber optic cable, and the tail fiber is cleaned. Each tape is covered with a protective sleeve, and the protection sleeve is in the armor layer. 65mm bare band is reserved at the place;
Put the optical cable from the bare band into the protection joint, and then use a piece of loose tube to wrap it with tape so that the outside diameter matches the protection joint. Push in the protection joint so that the fiber cable strengthens the core through the groove of the nut seat. Fix the cable hooks on the cable, tighten the hose screw and the reinforcing core set screw;
In order, gently press each of the ribbon fibers with protective flat tubes into the protection joint fixing groove, and press more than three grooves per groove;
Insert the small end of the joint cover into the corresponding part of the protection joint, then press down the big end, and the protection joint is installed;
Non-ribbon stripping and fixing
Cable stripping length: 2.5 meters + cable stripping distance to the far distance of the welding wiring module distance (visual situation changes), armor layer reserved 40mm, reinforcing core reserved 150mm;
Put a heat-shrinkable tube on the open cable stripping area and heat it with a hair dryer so that the heat-shrinkable tube will tightly cover the cable.
Depends on the protection of the pigtail itself to determine whether to add a sheath;
Use a hosel to secure the cable to the cable fixing plate.
2. Adapter and pigtail installation
Ribbon pigtail installation
Take out a fiber integration module, place it on the workbench, remove the upper and lower cover plates, and press the 12 adapters (FC or SC) into the installation slot and press down from the top and bottom. Note that the adapter guide slot is upward;
Followed by blue, orange, green, brown, gray, white, red, black, yellow, purple, pink, light blue. Insert the pigtails into the adapter in the order of 1-12 on the integrated module and tighten it. Note that the pigtails are The insertion direction must be consistent with the guide position of the adapter;
The optical splitter is pressed along the two cylinders, and the redundant pigtails are stored in the tail fiber winding area on the back of the module;
Insert the bare tape behind the optical splitter through the central rectangular hole of the integrated module to the front of the module and cover the back cover
Store the remaining bare reel in the front welding area of ​​the module and cover the upper cover;
Insert the integrated module in the corresponding position in the melt unit box.
Single core pigtail installation
Pull out an integrated module from the fusion unit box, place it on the workbench, remove the upper and lower cover plates, and press the 12 adapters (FC or SC) into the mounting slots and press down from the top to bottom. Note the adapter guide Slot facing up.
Pass the marked 12 single-core pigtails from the back of the module to the front, insert the adapter in the order of 1-12 on the integrated module and tighten it. Note that the insertion direction of the pigtail must be the same as the guide position of the adapter.
Redundant pigtails are coiled 1-2 times in the tail fiber winding area on the back of the module. Twelve pigtails are tied in the position shown in the figure by wire tie, and then the outer jacket tube and fiber of the free end of the pigtail are stripped as shown in the figure. Pass it from the rectangular hole in the integrated module to the front and cover the back cover;
Twelve single-core pigtails with loose tubes were stored in the front face of the module (see the figure on the right), and the upper cover was covered.
Insert the integrated module into the corresponding position in the rotary plug.
3, welding operation
Take out the integrated module placed on the welding table, uncover the front cover, release the pigtail stored in the welding zone;
The end of the bare fiber protection sleeve of the outside line is fixed in the position shown by the wire, and the bare fiber enters the fusion zone;
The protection sleeve is fused on one of the pigtails and the core of the optical fiber core, and then welded with a fusion splicer. After passing the inspection, the welding protection sleeve is moved to the welding point and heat-shrunk on the welding machine;
The redundant bare fiber (pigtail and fiber optic core) is stored in the welding zone as shown in Fig.
Cover the module front cover;
Bare fiber protection sleeve in the front outer ring of the module is well, and the exit is fixed by wire;
Each core fiber makes a mark record;
Insert the integrated module into the original position;
Complete the welding of the entire frame.
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