CN201867525U

CN201867525U - FTTH (fiber-to-the-home) indoor access optical cable

Info

Publication number: CN201867525U
Application number: CN201020598424XU
Authority: CN
Inventors: 林涛
Original assignee: SHENZHEN YOUNGSUN COM OPTICAL FIBER CABLE CO Ltd
Current assignee: SHENZHEN YOUNGSUN COM OPTICAL FIBER CABLE CO Ltd
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-06-15
Anticipated expiration: 2020-11-04

Abstract

An embodiment of the utility model discloses an FTTH (fiber-to-the-home) indoor access optical cable, which comprises a flat sheath and an optical fiber positioned at the central position of the sheath. A 'V'-shaped notch is arranged in the middle of the cross section of the sheath along the length direction, and two or a plurality of reinforcing parts are respectively arranged on the left side and the right side of the sheath. The FTTH indoor access optical cable is in a unique flat structure, two unique parallel reinforcing components are ingeniously distributed on two sides of the optical cable to protect the optical fiber, and access optical cable lines can bear severe lateral pressure indoors without affecting data transmission, so that the optical cable has fine compressive property, short-term lateral flattening resistance is improved from 500N to 1000N, and long-term lateral flattening resistance is improved from 100N to 300N.

Description

The indoor access optical cable of FTTH

Technical field

The utility model relates to the communications optical cable field, relates in particular to the indoor access optical cable of a kind of FTTH.

Background technology

FTTH (Fiber To The Home) is meant the transmission method of fiber-to-the-home a kind of optical-fibre communications, directly receive optical fiber in user's the family or the required place of user, FTTH is installed in household user or enterprise customer place with optical network unit (ONU), be that light inserts in the series except that FTTD (fiber to the desk) the most close user's optical access network application type, FTTH not only provides bigger bandwidth, and strengthened the transparency of network to data form, speed, wavelength and agreement, relaxed requirements such as environmental baseline and power supplies, simplified and safeguarded and installation.

The advantage of FTTH mainly is that 5 points are arranged: the first, and it is a passive network, from the local side to user, the centre can be accomplished passive basically; The second, its bandwidth is than broad, and long distance just in time meets the extensive operational mode of operator; The 3rd, because it is a loaded service on optical fiber, so do not have what problem; The 4th, because its bandwidth ratio broad, the agreement of support is more flexible; The 5th, along with the development of technology, comprise that the mode of point-to-point, 1.25G and FTTH has all been formulated fairly perfect function.

China utility application CN200920188614.1 discloses between a kind of building and indoor FTTH wiring leading in cable, and it comprises the fibre core that is positioned at the center, the polyethylene fibre reinforcement that is arranged on described fibre core both sides, described fibre core and polyethylene fibre reinforcement are coated on wherein sheath.Yet this optical cable can not satisfy the requirement of present stage FTTH engineering house wiring, can not guarantee line security, can not take into account indoor attractive in appearancely again, is not easy to small-bend radius construction, not anti-side pressure simultaneously.

The utility model content

In order to solve the above problem of prior art, embodiment of the present utility model proposed a kind ofly can guarantee line security, can take into account indoor attractive in appearancely again, is convenient to the small-bend radius construction simultaneously, the indoor access optical cable of the FTTH of anti-side pressure, and its technical scheme is as follows.

The indoor access optical cable of a kind of FTTH comprises sheath and optical fiber, and optical fiber is positioned at the sheath center, and sheath is a flat pattern.

Sheath cross-section lengths direction interposition is equipped with one " V " v notch v, and breach roughly is divided into sheath left part and right side part.

The left part of described sheath is respectively equipped with two or many parallel reinforcements with the right side part.

Sheath is made by low smoke and zero halogen (LSZH) material by material.

Described optical fiber is small-bend radius optical fiber G.657.

The platypelloid type structure of the indoor access optical cable of the utility model FTTH uniqueness; the ingenious protection optical fiber that lays of two parallel stiffeners of optical cable both sides uniqueness; can ensure that inserting lightguide cable link bears abominable side pressure and do not influence data transmission indoor; make optical cable that the good pressure resistance energy be arranged; the flat power of lateral pressure resistant of the indoor access optical cable of the utility model FTTH short-term has been brought up to 1000N from 500N, and the flat power of long-term lateral pressure resistant has been brought up to 300N from 100N.

Description of drawings

In order to be illustrated more clearly in embodiment of the present utility model or technical scheme of the prior art, will do to introduce simply to the accompanying drawing of required use in embodiment of the present utility model or the description of the Prior Art below.

Fig. 1 is the cross sectional representation of the indoor access optical cable of the utility model FTTH.

Embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is carried out clear, complete description.

As shown in Figure 1, the indoor access optical cable 100 of the utility model FTTH comprises flat sheath 10, reinforcement 20 and optical fiber 30.

Flat sheath 10 cross-section lengths direction interpositions are equipped with one " V " v notch v 11, breach 11 roughly is divided into sheath 10 left part 12 and right side part 13, sheath 10 can adopt low smoke and zero halogen (LSZH) material to make, can select PE, PVC tygon, Polyvinylchloride etc. for use, stable performance, be difficult for by acid, caustic corrosion, fire-retardant.Flat sheath 10 changes the contour structures of the indoor access optical cable of FTTH into pancake from traditional circle, is fit to carpet and metope and lays, and has strengthened anti-side pressure.

Optical fiber 30 is positioned at the center of flat sheath 30, and the utility model is selected G.657 small-bend radius optical fiber for use, and bending radius that can be very little is laid, and is adapted at registering one's residence with pipe method or open wiring mode in the building.

The left part 12 of flat sheath 10 is respectively equipped with two or many parallel non-metal reinforcement members 20 with right side part 13 around the optical fiber; its material can be phosphatization steel wire, stainless steel wire and fiberglass pole; reinforcement 20 is given the good stretch-proof of communications optical cable 100, anti-collapse and mechanical property such as counter-bending, and optical fiber and increase stretching resistance more adequately protects.

More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, the variation that any those skilled in the art considers without creative work all should fall into protection domain of the present utility model.

Claims

1. the indoor access optical cable of FTTH comprises sheath and optical fiber, and optical fiber is positioned at the sheath center, it is characterized in that described sheath is a flat pattern.

2. the indoor access optical cable of FTTH as claimed in claim 1 is characterized in that described sheath cross-section lengths direction interposition is equipped with one " V " v notch v, and breach roughly is divided into sheath left part and right side part.

3. the indoor access optical cable of FTTH as claimed in claim 2 is characterized in that the left part of described sheath is respectively equipped with two or many parallel reinforcements with the right side part.

4. the indoor access optical cable of FTTH as claimed in claim 3 is characterized in that described sheath made by low smoke and zero halogen (LSZH) material by material.

5. as the indoor access optical cable of each described FTTH of claim 1-4, it is characterized in that described optical fiber is small-bend radius optical fiber G.657.