CN201397413Y - Indoor and outdoor two-purpose optical cable - Google Patents
Indoor and outdoor two-purpose optical cable Download PDFInfo
- Publication number
- CN201397413Y CN201397413Y CN2009201322079U CN200920132207U CN201397413Y CN 201397413 Y CN201397413 Y CN 201397413Y CN 2009201322079 U CN2009201322079 U CN 2009201322079U CN 200920132207 U CN200920132207 U CN 200920132207U CN 201397413 Y CN201397413 Y CN 201397413Y
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- cable
- optical cable
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- protective covering
- outdoor
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Abstract
The utility model fully discloses an indoor and outdoor two-purpose optical cable, which comprises an outer protective covering, a unit cable arranged in the outer protective covering, and a filler and a filing rope which are filled in the outer protective covering and outside the unit cable, the unit cable comprises a unit cable protective covering and an optical cable arranged in the unit cable,the optical fiber accords to G.657A/B or G.652 and G.651 standard, the unit cable protective covering and the outer protective covering are low-smoke halogen-free flame-proof protective coverings, and the filler is aramid fiber yarn filler. Since the optical cable which accords to G.657A/B standard is used, and the optical cable is flexible, and is suitable for small space, and the protective covering is low-smoke halogen-free flame-proof protective covering, the indoor and outdoor two-purpose optical cable is suitable for indoor wire arrangement. And meanwhile, the filling rope which is arranged in the outer protective covering can increase the intensity and the tensile capacity of optical cables, and the protective covering has excellent ultra-violet resistance, thereby optical cable issuitable for outdoor wire arrangement.
Description
Technical field
The utility model relates to a kind of optical cable, relates in particular to a kind of dual-purpose optical cable of indoor and outdoor that can not only satisfy the outside run requirement but also satisfy the house wiring requirement.
Background technology
In the mobile communication base station, particularly the initial stage of NodeB construction, industry generally adopts radio frequency to zoom out the feeder line base station, promptly connects by copper feeder between indoor base station part and the outdoor masthead units, and one three sector site needs 27 feeder lines at that time.The feeder messenger wire footpath is big, and is heavy hard, crooked inconvenience, and also attenuation is big, hundred meters loss 20dB of this line feedback, and machine room must increase the Cell Site Placement difficulty near antenna like this.The base station need be carried out the lightning protection processing separately to feeder line simultaneously, need carry out ground connection and joint waterproofing separately to every feeder line.Increase the engineering construction difficulty of NodeB so greatly, made construction period extend networking cost height.
At above situation, under the background of " light advances copper and moves back " and energy-saving and emission-reduction, 3G radio reception device supplier releases the fiber optic stretch solution: promptly use baseband processing unit BBU (BaseBand Unit) and far-end masthead units RRU (Radio Remote Unit) in the optical cable junction chamber, last tower optical cable quantity is few, have only one, the core number is more, can support a plurality of RRU, significantly reduce optical cable laying construction working amount, also accelerated the speed of building a station simultaneously; Can realize that a plurality of BBU share a machine room, the shared multifiber cable of a plurality of near-end machines makes base station selection more flexible, but also can reduce support equipment cost, construction cost and the operation expense of base station greatly; Be easy to branch midway, can simplify the network planning greatly; It is convenient to continue, and is easy to the follow-up network optimization and dilatation.
, the application scenarios that pipe tower and interior conduit were installed in conventional cable structurally generally can't satisfy.Common outdoor optical cable satisfies the requirement of outside run: (1) anti-ultraviolet ageing; (2) dustproof, waterproof, protection against the tide; (3) tension, wear-resistant and lateral pressure resistant; (4) anti-thunder and lightning.But can not satisfy the requirement of house wiring: (1) softness is fit to little space; (2) safety, fire-retardant.Though and common inside cable is soft, fire-retardant being suitable for, can not satisfy the requirement of outside run simultaneously at house wiring.
Summary of the invention
The utility model provides a kind of dual-purpose optical cable of indoor and outdoor that not only had been adapted at house wiring but also had been adapted at outside run, satisfies the application scenarios that the interior pipe tower between the base station and outdoor cat head and interior conduit are installed in the mobile communications network.
The scheme of technical solution problem of the present utility model is: the dual-purpose optical cable of a kind of indoor and outdoor, comprise oversheath, be arranged at the unit cable in the oversheath and be filled in the oversheath, filling material and gasket for packing that the unit cable is outer, described unit cable wrap is drawn together the optical fiber of unit cable sheath and Qi Nei setting, described optical fiber be meet G.657A/B or G.652, the optical fiber of standard G.651, described unit cable sheath and oversheath are low-smoke halogen-free flame-retardant sheath, and described filling material is the aramid yarn filling material.
In the technical program since use meet G.657A/B or G.652, the optical fiber of standard G.651, soft, be suitable for little space, adding upper jacket is low-smoke halogen-free flame-retardant sheath, therefore be suitable for house wiring, simultaneously, intensity and resistance to tension that gasket for packing can increase optical cable are set in oversheath, and the good UV resistant performance that sheath has makes this optical cable be suitable for outside run.
Below with reference to drawings and Examples, the utility model is further described.
Description of drawings
Fig. 1 is the utility model embodiment 1 optical cable cross section structure figure.
Fig. 2 is the utility model embodiment 2 optical cable cross section structure figure.
Among the figure: 1, oversheath, 2, filling material, 3, gasket for packing, 4, the unit cable, 41, unit cable sheath, 42, optical fiber, 5, the optical cable overcoat, 6, tear rope.
Embodiment
In the present embodiment, used two root unit cables 4, the unit cable sheath 41 of unit cable also is to be made by low-smoke non-halogen flame-retardant (LSZH) material, optical fiber 41 for meet G.657A/B or G.652, the optical fiber of standard G.651.The diameter of unit cable 4 is 2mm.Described gasket for packing (3) is twisted into by halogen-free low-smoke flame retardant material, and its diameter is 2mm, and the thickness of described oversheath is 1mm.The diameter of whole optical cable has only 7mm.The tensile force of short-term and long-term tensile force can reach 400N and 200N respectively, the short-term wall pressure that can bear and long-term wall pressure are respectively 1000N/100mm and 300N/100mm, the short-term bending radius of optical cable and term bend radius are respectively 20/10D, remove after the oversheath, minimum bending radius has only 9mm.The weight of optical cable is 35-40kg/km.Remove oversheath 1 for convenience, in oversheath 1, also be provided with and tear rope 6.
In the present embodiment, at first, satisfy the requirement of outside run: (1) anti-ultraviolet ageing; (2) dustproof, waterproof, protection against the tide; (3) tension, wear-resistant and lateral pressure resistant; (4) anti-thunder and lightning.Optical cable is the parallel no metal constructions of circular and two circles, we have selected the halogen-free low-smoke flame retardant material (LSZH of the requirement of satisfying outside run for use, meet environmental protection RoHS standard) as sheath, promptly satisfied the transmission connection of base station to the cat head antenna, long apart from the protection against the tide that blocks water of optical cable, the requirement of anti-ultraviolet ageing; It is soft also to satisfy simultaneously indoor machine room optical cable wiring, little space, safety, fire-retardant requirement.Promptly significantly reduced cost, also efficiently solved the not enough problem of performance of the TPU protective cover material waterproof that conventional cable adopts, reached block water, the requirement of tension, wear-resistant and lateral pressure resistant.The 3rd, bending radius is little, and the G.657A/B optical fiber hard-pressed bale that can reach 15mm and 7.5mm adds the optical cable that gasket for packing is made, can satisfy indoor little space, turn round, the turning lays, and is easy to branch midway, it is convenient to continue, be easy to the network optimization and dilatation, shorten the engineering time, save executive cost.For can be at indoor littler space lining line, present embodiment also be provided with a tear line in the oversheath of optical cable, oversheath is torn, and only uses the unit cable, and its bending radius can have only 9mm.
Comprehensive above-mentioned two embodiment: use the optical cable in the present embodiment to have following characteristics:
● make base station selection simple and fast more flexibly, but also can reduce ground, base station support equipment cost, construction cost and operation expense greatly;
● be easy to branch midway, it is convenient to continue, and is easy to the network optimization and dilatation, shortens the engineering time, saves executive cost;
● all optical fiber are tight cover, can solve the problem of waterproof better;
● NodeB zooms out pre-connection optical cable indoor section optical cable and has good lateral pressure resistant and flexibility.Optical cable lateral pressure resistant performance is good, mounting meanss such as stay pipe tower, pipeline, built on stilts and direct-burried, make engineering construction and safeguard more convenient;
● all optical cable supports vertically lay, used anti-little curved G.657A/B or G.651, optical fiber G.652, guaranteed the harsh requirement in the space of house wiring.
Embodiment of the present utility model is many in addition, such as, only adopting a unit cable among the embodiment 1, other is local with aramid yarn and gasket for packing filling, perhaps as increasing by one or several embodiment 1 described optical cable among the embodiment 2.
Claims (5)
1, the dual-purpose optical cable of a kind of indoor and outdoor, comprise oversheath (1), be arranged at the unit cable (4) in the oversheath (1) and be filled in the oversheath (1), filling material (2) and gasket for packing (3) that unit cable (4) is outer, it is characterized in that, described unit cable (4) comprises unit cable sheath (41) and the optical fiber (42) that is provided with in it, described optical fiber be meet G.657A/B or G.652, the optical fiber of standard G.651, described unit cable sheath (41) and oversheath (1) are low-smoke halogen-free flame-retardant sheath, and described filling material (2) is the aramid yarn filling material.
2, the dual-purpose optical cable of indoor and outdoor according to claim 1 is characterized in that: the diameter of described unit cable (4) is 2mm.
3, the dual-purpose optical cable of indoor and outdoor according to claim 2 is characterized in that: described gasket for packing (3) is twisted into by halogen-free low-smoke flame retardant material, and its diameter is 2mm.
4, according to the dual-purpose optical cable of the arbitrary described indoor and outdoor of claim 1 to 3, it is characterized in that: the thickness of described oversheath is 1mm.
5, the dual-purpose optical cable of indoor and outdoor according to claim 4 is characterized in that: also be provided with tear line in described oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201322079U CN201397413Y (en) | 2009-05-21 | 2009-05-21 | Indoor and outdoor two-purpose optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201322079U CN201397413Y (en) | 2009-05-21 | 2009-05-21 | Indoor and outdoor two-purpose optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397413Y true CN201397413Y (en) | 2010-02-03 |
Family
ID=41619933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201322079U Expired - Lifetime CN201397413Y (en) | 2009-05-21 | 2009-05-21 | Indoor and outdoor two-purpose optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397413Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898243A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Two-core waterproof optical cable |
-
2009
- 2009-05-21 CN CN2009201322079U patent/CN201397413Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898243A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Two-core waterproof optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |