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The residential fiber cabling solution

Background

For the old and new communities, especially those with a large share of telecom services and well-equipped communities, it is necessary to realize fiber-to-cell and fiber-to-building. However, for the time being, the challenges of bringing fiber to a home or small and medium-sized office are far greater than entering enterprise users. In order to continue to develop in a broader, faster, and better direction, we are marching towards the field of all-fiber technology.

Challenge

Signal attenuation is unavoidable in fiber optic cabling. The reasons for this are both internal and external: the internal attenuation is related to the fiber material; the external attenuation is related to the construction and installation, so it should be noted that during construction, be careful not to make the cable under heavy weight or hard by objects. When the fiber is applied to the backbone network. The trunk of each floor wiring closet should generally use at least a 6-core fiber optic cable. It is best to use 12-core fiber optic cable. This is considered from the aspects of application backup and expansion.

Solution

1、Brief description of the campus wiring scheme (FTTB+LAN method):

Divide the park into three sections according to the planning of the community;

The OLT is placed in the community center room, and the 12-core outdoor optical cable is taken out from the community center computer room;

Each core fiber is divided into 16 channels by a 1:16 optical splitter in the splice box and is fused with three 48-core indoor and outdoor optical cables, the connected 48-core optical cables are respectively connected to three areas;

The 48-core optical cable is branched into 12 4-core optical cables through the optical cable connector box and connects to each unit building separately.

Brief description of the wiring scheme in the building:

The 4-core optical cable is introduced into the corridor access box, and the number of corridor access boxes is configured according to the floor and the number of households and the optical fibers can be connected in the access box by fusion or cold connection.

The optical signal is converted into 16- channel data and voice signal by OUN equipment in the corridor access box, and introduced into the user's home through the Unshielded Twisted Pair.

2、Brief introduction of park wiring scheme (FTTH method) :

Divide the park into three areas according to the planning of the community;

The OLT is placed in the central computer room of the community, and the 24-core outdoor optical cable is taken out from the center room of the community;

The 24-core optical cable is branched into three 8-core optical cables and respectively connected to the optical cable junction boxes of the three areas;

Each core fiber is divided into 32 channels in the junction box by 1:32 optical splitter and respectively fused with two 16-core indoor and outdoor optical cables, and the connected 16-core optical cables are respectively connected to each unit.

Brief introduction of building wiring scheme:

16 fiber optic cables are directly connected in the fiber distribution box of the floor and the home wiring cable (FRP leather cable). The connection method can adopt welding or cold-bonded;

The fiber distribution box configured according to the number of floors and households, 16-core fiber distribution box can be selected, one for each unit;

The leather cable is introduced into the indoor FTTH user intelligent wiring box through the inner pipe (slot). In order to protect the ONU, the ONU should be placed in the intelligent wiring box in the user's room.

Conclusion

Aim to meet the needs of users, and maximize to meet the functional requirements of users. In addition, ensure usability according to business characteristics.