Fixation and protection of optical cables

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1 point 32 optical splitter box cold-rolled plate 1 point 32 wall-mounted optical splitter box outdoor plug-in 32-core optical cable distribution box sub-fiber box Optical splitter box Advantages: 1. There should be enough connections in the box area, and can meet the storage and distribution of cables during connection. 2. There should be relatively independent inlet holes for different types of cables, and the hole capacity should meet the needs of full configuration. At present, the hole capacity requirement should be guaranteed according to 3 outdoor optical cables and leather cable (or other indoor optical cables) when fully configured, and the incoming and outgoing cables should be vertical. 3. When the user’s incoming optical cable is not stripped, the minimum pull-off force of the splicing fixture to the optical cable is not less than 100N. 4. The optical fiber should be properly reserved in the chassis, and the reserved length is appropriate to facilitate the operation of the secondary connection. 5. The cable entry hole should be sealed to prevent water and rodents from entering the chassis. 6. Provide a certain number of cable management rings or other binding cable accessories to facilitate the basic requirements of binding cables. 7. Set a card slot at a suitable position in the middle of the chassis door to place a paper form for filling in the fiber separation. 8. Applicable to a variety of usage scenarios: indoor, outdoor, wall hanging, hanging pole, new and old real estate. 9. Molded box body, installation back plate design, beautiful and compact shape, convenient and fast installation, convenient for large-scale construction. 10. The serialized inserts can be combined into building blocks, which is convenient for expansion and saves investment. 11. The leather wire optical cable is designed with a special card slot, which can be put into the box with a flexible joint, which is reliable in fixation, simple in layout and high in efficiency. Product Overview The corridor (indoor/outdoor) fiber distribution and distribution box adopts a modular, non-jump fiber structure layout, and the number of plug-in optical splitters (hereinafter referred to as optical distribution chips) can be flexibly increased to realize the connection of ports. Expansion. The optical splitters of different manufacturers are versatile and interchangeable, and the optical fiber cable splice disk is also equipped for the termination of the uplink optical cable and the connection of the optical cable branch, and the corresponding fiber storage parking space is configured for the uplink optical cable and branch optical cable. storage. Replacing the optical insert mounting frame, adapter base plate and related accessories as needed will enable the box to have functional products such as optical fiber splitter boxes.

Composition and classification.1 The optical fiber distribution and distribution box of the corridor (indoor/outdoor) is composed of the box body, internal structural parts (flip plates), optical fiber fusion splices, optical splitters and accessories.

.2 Classification.2.1 Corridor (indoor/outdoor) fiber distribution and distribution boxes can be divided into the following two categories according to their functions:

1. a) According to the installation method and the number of slots, the plug-in fiber distribution box can be divided into:

1) Two-channel plug-in fiber distribution and distribution box

2) Four-slot plug-in fiber distribution and distribution box

1. b) Corridor (indoor/outdoor) fiber distribution and distribution boxes can be divided into:

1) Formed fiber optic cable distribution box

2) Direct fusion fiber optic cable distribution box

2.2 The chip optical splitter can be divided into the following four categories according to the optical division ratio:

1. a) 1:4 optical splitter
2. b) 1:8 optical splitter
3. c) 1:16 optical splitter
4. d) 1:32 optical splitter

skills requirement

3. Conditions of use Working temperature: -40℃～+60℃

Relative humidity: ≤95% (+40℃)

3..2 Appearance

1. a) Corridor (indoor/outdoor) optical fiber splitter and wiring box should be complete, and each plastic part has no burrs, no bubbles, no cracks, no holes, no warping, no impurities and other defects, and the thermal deformation temperature is ≥85 ℃, to meet the 15-year service life requirement of the line.
2. b) Corridor (indoor/outdoor) fiber optic fiber splitting and distribution box box body adopts Q235 cold-rolled plate, the thickness is not less than that, the surface is galvanized, and the upper and lower installation plates of the box are Q235 cold-rolled plate, the thickness is not less than 2mm,, after galvanizing and spraying treatment. The outdoor type is also equipped with a pole-mounted iron fitting, which is hot-dip galvanized with stainless steel or iron fittings.
3. c) For metal structural parts treated with plasticspraying, the coating should have good adhesion to the substrate, and the adhesion should not be lower than the level 2 requirements in Table 1 of GB/T 9286-1998. Smooth surface, uniform color, no peeling, paint peeling, rust and other defects, no sagging, scratches, exposed bottom, bubbles and whitening.
4. d) The non-metallic composite material (plastic) used in the optical fiber splitting and wiring box related accessories of the corridor (indoor/outdoor), the combustion performance shall comply with the regulations in GB/T 2408-2008,
5. e) The color of the optical fiber splitter and the surface coating of the distribution box in the corridor (indoor/outdoor) is according to the color spectrum: GSB05-1426-200 medium gray (for similar colors, refer to Pantone-medium gray 445, matte color).
6. d) Corridor (indoor/outdoor) optical fiber distribution and distribution boxes should meet the requirements of upper and lower cable entry. The top and bottom of the box should be equipped with 4 cable entry holes, and the optical cable fixing and protection device should be able to meet the requirements of 4 optical cables. At the same time fixed demand. If the lower cable entry is used alone, the upper cable entry space needs to be sealed.
7. e) The optical fiber splice tray shall be open, and the installation method and size of the optical cable splice tray and the leather cable splice tray shall be consistent.
8. f) The connection of all fasteners should be firm and reliable, and the bonding of the sealing strip of the box should be smooth and firm.
9. g) The opening angle of the box door is not less than 180o, and the opening and closing of the door lock is flexible and reliable.
10. h) When the optical cable is introduced, its bending radius should be greater than 15 times the diameter of the optical cable.
11. i) When the optical fiber is laid out in the box, no matter where it turns, its radius of curvature should not be less than 30mm.
12. j) The minimum bending radius of the butterfly drop cable after being fixed shall not be less than 10mm, and the reserved length in the box shall not be less than 10mm.
13. h) The optical splitter installed in the optical splitter box should be fixed in the box with firm materials, and the performance indicators of the optical splitter must meet the requirements of China Telecom’s bidding technical specifications.
14. k) The optical fiber active connector used in the optical splitter should be SC type, the insertion loss of any connection between two plugs is ≤, the return loss is > 35dB, and its performance index should comply with YD/T 1272.3-2005 “Optical Optical Connector No. 1” Part 3: Type SC requirements. The optical fiber active connector used by the uplink port of the optical splitter should be green, the optical fiber active connector used by the downlink port should be blue, and no optical fiber active connector should be installed on the idle port.
15. l) The terminal, splicing, and storage of the optical fibers in the corridor optical fiber distribution box should be conveniently configured as a complete set within the full capacity range.
16. m) The optical splitter should be modularized and integrated, and there should be no jumpers in the corridor splitter box.
17. o) The manufacturer of the optical fiber distribution box in the corridor should provide the manufacturer, specification and model of the optical splitter used, and provide the proof of purchase.
18. Functional requirements. Fixation and protection of optical cables

When the optical cable is introduced into the optical fiber distribution box of the corridor, there should be reliable fixing and protection devices. The fixed optical cable metal moisture barrier, armor layer and reinforcing core should be reliably connected to the high-voltage protective grounding device. After the optical cable is stripped, a plastic sleeve should be used The tube or spiral tube protects and secures the introduction of the optical fiber fusion splicing device.

The coiling and binding of the butterfly drop cable should be naturally straight, without twisting, looping and other phenomena, and should not be squeezed by external forces and damaged by operation.

. Termination function of optical fiber core

The optical fiber termination device should be convenient for the fusion, installation and maintenance of the optical fiber of the optical cable and the optical fiber of the optical cable or pigtail.

.3 High Voltage Protection Performance

.4.1 Withstand voltage level

The withstand voltage level between the grounding device and the box and metal components is not less than 3000V (DC), and there is no breakdown or arcing in 1min.

.4.2 Insulation resistance

The insulation resistance between the grounding device and the gold workpiece in the box should not be less than 2×104MΩ, and the test voltage should be 500V ( DC ).