Incoming optical cable of optical distribution box 3.
The grounding flat steel and the grounding body shall be welded into the underground 4.
Step 1 of the installation process of the optical transfer box: site selection step 2: arrangement of the optical cable pipe and embedded bottom frame of the base step 3: installation of the concrete base step 4: installation of the transfer box step 5: placing the tray step 6: storage management preset pigtail step 7: introduction of the external cable step 8: fusion of the external cable and pigtail step 9: opening the route.
the distribution optical cable shall be fused from bottom to top and from left to right in the fused fiber distribution integrated module; (6) The transition bundle tube shall not be coiled for more than half a circle in the integrated module of fused fiber wiring; The transition bundle pipe shall have the same radian, and all the optical fiber transition bundle pipes shall be bound neatly; (7) The optical cable inlet hole of the optical cable delivery box must be blocked with fire-proof mud, and the blocking must be flat; Do a good job in waterproof and dustproof of the optical cable handover box, and hang the optical cable in the base; (8) .
Laying of vertical pipes in the corridor 5.
Key points for construction of the optical transfer box (1).
Foundation pouring and grounding: the installation and fixing of outdoor floor type jump free optical cable transfer box mainly consists of the laying of lead-in pipe and grounding rod, the pouring of cement pier, the laying of inner conduit, the installation of box, etc.
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V PVC pipes are preferred for vertical pipes, and each layer is equipped with a passage box; The second choice is plastic trunking.
Optical cable reel protection of incoming optical cable of optical distribution box 4.
After the vertical pipes are laid, the floor holes shall be repaired and the contaminated walls shall be painted.
Double Head Lifting Pin Anchor
Two copper wires above 16mm2 shall be used for grounding body (on the opposite side); Combined with 40 × 4.
Optical cable laying 1.
in the integrated module of fused fiber distribution (fused fiber tray), the optical fiber transition bundle tube must be fixed with plastic small ties in the integrated module of fused fiber distribution (9).
the remaining cables of the optical cable shall not be coiled under the optical handover box, and must be pulled back to the man (hand) hole and fixed (placed) beside the side after being coiled; 2、 Optical fiber distribution box and channel 1.
Arrangement in incoming optical cable box of optical distribution box 5.
The box is equipped with optical cables, butterfly shaped optical cable fixing devices and optical fiber disk positions, and can stack fusion disks.
Open line nailing of corridor shall be used with caution.
The installation site shall be constructed according to the design documents.
The optical fiber household project in the community, that is, the three network integration system that we often talk about now, has some projects constructed by our engineers, and some projects constructed by the third-party companies recommended by the operators.
The box capacity is 24 and 48 cores.
2.
After the optical handover construction is completed, the construction site and the inside of the optical handover shall be cleaned; The dust cap must be completely covered with the same color; (10) After the completion of the light delivery construction, the light delivery panel label must be pasted within three days, and the added end position must be marked on the panel label after the completion of the construction; (11) The core loss of optical cable test must meet the standard, and those that do not meet the standard must be rectified and repaired on the spot, and the fiber must be aligned to ensure the correctness of optical cable termination; (12) The optical cable inlet hole opened in the optical connection box must be blocked with fireproof mud; (13) .
3.
Specification of optical transfer box common specification of front view of optical switch: 72, 144, 288, 432, 576 cores (2) base: 288-144 cores (15 (+ 2) cm, with external slope); 2.
Requirements for overhead and wall optical cables 3.
The optical transfer box must be placed flat and firmly fixed; (2) The grounding shall be reliable, and the anti-corrosion, anti rust and anti acid treatment shall be done well; The ground wire of the optical transfer box shall be of 16mm * 2 specification and the copper nose shall be fixed with screws.
2.
V for the convenience of subsequent wiring, the optical distribution box shall be installed on the middle floor.
Internal code and placement sequence of optical distribution box 3.
1、 Optical transfer box 1.
Generally, the property equipment room, garage, corridor, shaft, corridor and other suitable places shall be selected for installation in the building.
Site selection of optical fiber distribution box n indoor installation requires that the height from the bottom of the box / frame to the ground should be 1.2m-2.5m; N outdoor installation requires that the height from the bottom of the box / frame to the ground should be 2.8m ~ 3.2m; N the installation in the shaft requires that the height from the bottom of the box / frame to the ground should be 1.0m ~ 1.5m, and the specific situation should be combined with the site.
Optical cable incoming line of optical distribution box Park 7.
4.
Pipeline optical cable requires laying of optical cable in manhole.
Key points for attention inside the optical transfer box 5.
No matter who constructs, we need to know the whole construction process.
Method of crossing horizontal horizontal pipes: flexible protective pipe crossing method A.
Intermediate manhole shall be reserved for pipeline optical cable according to design requirements.
(3) The ceramic tiles at the base of the light transfer box must be neat and standard; (4) .
the incoming cable must be fixed from left to right; The reinforcing core shall be reserved 10-15mm from the center point of the screw, and the tape shall be uniform black with consistent length; In case of insufficient fixation, the black tie shall be used to bind the uniform horizontal plane in a uniform manner, with the shear mouth facing inward and flat; (5) .
V the platform near the user’s door is preferred for the vertical pipeline location, and the rest platform is preferred.
The wall and location of the optical distribution box are direct fusion type optical fiber distribution boxes, which are used in the corridors, weak current wells and other places under the first-class optical distribution mode, and are mainly used for the fusion of optical cables and butterfly shaped optical cables.
It is suitable for the case where Φ 32 porous pipes are used and the horizontal pipes need to be crossed..
Optical cable incoming line of optical distribution box Park 6.
V corrugated pipes are preferred for horizontal pipes, and single hole PVC pipes and plastic trunking are secondary.
The v-optical distribution box for corridor wiring shall be installed close to the vertical pipeline and convenient for maintenance.
The optical cable shall be hung with an optical cable signboard in the manhole, indicating the specification, program, use and other specific requirements of the optical cable, and protected with red hose.
Tail fiber routing process of optical distribution box 8.
