Fiber Distribution Frame

Commodity description
Optical cable terminal box series products are auxiliary equipment for terminal wiring in optical fiber transmission communication network, suitable for direct and separate connection of indoor optical cable, and play a protective role on optical fiber joint. Cable terminal box is mainly used for cable terminal fixation, cable and tail fiber welding and residual fiber reception and protection.
1 definition
OTB for short, optical cable terminal box is mainly used for cable terminal fixation, cable and tail fiber fusion and residual fiber reception and protection. Optical cable terminal box is also called optical fiber terminal box, many engineers also called optical cable tray fiber box, is in the optical cable laying terminal protection cable and tail fiber fusion box, mainly used for indoor optical cable direct force connection and branch connection and cable terminal fixed, play tail fiber disk storage and
2 introduces
Optical cable terminal box series products are auxiliary equipment for terminal wiring in optical fiber transmission communication network, suitable for direct and divergence of indoor optical cable
And the protective effect on the optical fiber joint.
Environmental requirements
A. Cable terminal box is not suitable for use in the open air, if you want to use, should take protective measures.
B. Operating temperature: -25ºC ~ +40ºC
C. Storage temperature: 25ºC ~ +55ºC
Relative humidity: not more than 85%(at 30ºC)
D. Air pressure :70 ~ 106kPa
Service life:
20 years
Functional requirements
1. It has the function of cable introduction, wiring tail fiber extraction and fixation and protection of cable, wiring tail fiber and its fiber performance is not damaged.
2. It has the function of protecting the optical cable terminal from environmental impact.
3. With the cable metal components and cable terminal box shell insulation and can be easily led out of the function of grounding.
4. Provide optical cable terminal placement and remaining space for optical fiber storage, and make installation and operation convenient.
5. The box can be fixed with enough impact strength, and has corresponding installation functions for different occasions.
6. If necessary, it shall have the function of optical cable connection and function requirements.
structure
Optical cable terminal box consists of shell, internal components, optical fiber joint protection three parts.
1. The shell
The shell should be easy to open and install; The outer shell shall be used to draw out the cable metal member for high voltage protection grounding.
2. Internal components.
The internals shall include the following parts:
A. Support frame: the main body of the internal structure, used to support the internal structure;
B. Fiber collecting tray: it is used to store optical fiber connectors (and their protective parts) and remaining optical fibers in sequence. The length of remaining optical fibers should not be less than 1.6m, and the radius of curvature of remaining optical fibers should not be less than 37.5mm. And a space for easy identification of fiber marks and convenient operation is provided for reconnection;
C. Fixing device: used for fixing cable sheath, cable strengthening member and wiring tail fiber.
3. Optical fiber connector protection kit
Optical fiber connectors can be protected by heat shrinkable protective tubes, clips, etc.
Material performance
Optical cable terminal box parts of the material should have anti-corrosion properties, such as no anti-corrosion properties should be anti-corrosion treatment; Its physical and chemical properties must be stable; The materials must be compatible with each other and with cable sheath and wiring tail fiber sheath. To prevent corrosion and other electrical damage, these materials must also be compatible with materials commonly used in other equipment.
1 cable terminal box such as engineering plastic, its combustion performance should meet GB/T5169.7 test A, test flame to apply the duration of 30 seconds.
2. The hot melting temperature of materials and fillers used for fiber connector reinforcement protection should not be less than 120ºC, and the thermal softening temperature should not be less than 90ºC, and it should be able to be used at a temperature of 25ºC~+40ºC.
The appearance of optical cable terminal box should be complete in shape without bubbles, cracks and holes, warping, impurities and other defects. All background colors should be uniform and continuous. Beautiful appearance, convenient construction, small attenuation, reasonable structure, can strengthen the cable core fixed in the terminal box, has the function of grounding wire and cable metal sheath, and is suitable for ribbon optical cable and ordinary optical cable. Unique design, there are 19 inch rack terminal boxes, also have wall hanging terminal boxes.
Optical performance
The remaining optical fiber in the cable terminal box is coiled in the collecting disk, and the optical fiber and optical fiber joint should be additional attenuation after the installation of the cable terminal box.
Mechanical properties after the following tests, cable terminal box box body and box parts should be changed, if necessary, optical fiber inspection.
1. Tensile: cable terminal box and a cable should be able to withstand the axial tensile force of not less than 500N, and any of the wiring tail fiber can withstand the axial tensile force of not less than 5N.
2. Flattening: optical cable terminal box box body should be able to bear no less than 200N vertical static pressure.
3. Torsion: cable terminal box should be able to withstand torsion Angle
Electrical properties
1. Insulation resistance: cable connector box metal components and cable metal strengthening core, between the cable metal components, cable metal components and between the insulation resistance should not be less than 2*104M ω [test voltage is 500V (DC)].
2. Voltage strength: cable terminal box and cable metal strengthening core, between the cable metal components, between the cable metal components and the ground under the action of 15Kv DC 1min, no breakdown, no arc phenomenon.

Commodity description
Optical cable terminal box series products are auxiliary equipment for terminal wiring in optical fiber transmission communication network, suitable for direct and separate connection of indoor optical cable, and play a protective role on optical fiber joint. Cable terminal box is mainly used for cable terminal fixation, cable and tail fiber welding and residual fiber reception and protection.
1 definition
OTB for short, optical cable terminal box is mainly used for cable terminal fixation, cable and tail fiber fusion and residual fiber reception and protection. Optical cable terminal box is also called optical fiber terminal box, many engineers also called optical cable tray fiber box, is in the optical cable laying terminal protection cable and tail fiber fusion box, mainly used for indoor optical cable direct force connection and branch connection and cable terminal fixed, play tail fiber disk storage and
2 introduces
Optical cable terminal box series products are auxiliary equipment for terminal wiring in optical fiber transmission communication network, suitable for direct and divergence of indoor optical cable
And the protective effect on the optical fiber joint.
Environmental requirements
A. Cable terminal box is not suitable for use in the open air, if you want to use, should take protective measures.
B. Operating temperature: -25ºC ~ +40ºC
C. Storage temperature: 25ºC ~ +55ºC
Relative humidity: not more than 85%(at 30ºC)
D. Air pressure :70 ~ 106kPa
Service life:
20 years
Functional requirements
1. With the light