CN204269891U - A kind of four optical-fiber cable assembly - Google Patents
A kind of four optical-fiber cable assembly Download PDFInfo
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- CN204269891U CN204269891U CN201420817312.7U CN201420817312U CN204269891U CN 204269891 U CN204269891 U CN 204269891U CN 201420817312 U CN201420817312 U CN 201420817312U CN 204269891 U CN204269891 U CN 204269891U
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Abstract
The utility model discloses a kind of four optical-fiber cable assembly, comprise middle part main cable, head end branched cable, head end and the optical fiber LC connector of tail end, first, second deconcentrator being connected main cable and LC connector and fiber cable branch device, fiber cable branch device comprises upper casing, lower casing, inner pressure ring and take-off pipe, inner pressure ring respectively with main cable and head end branched cable riveting, take-off pipe and inner pressure ring riveting, main cable and branched cable couple together by take-off pipe, upper casing and lower casing, by screw lock, fix splitter; The utility model is a kind of sealing to through the wall infrastructure product, once can pass through four-core fiber, remote equipment and base station equipment are coupled together by the twin-core LC plug at plug wire jumper two ends by light path, wherein the second deconcentrator is fixed on RRU cabinet, for fixing DLC plug wherein, and ensure that cable outer sheath uses halogen-free low-smoke flame retardant material (LSZH) through energy waterproof sealing during remote equipment, be applicable to the indoor main control unit in mobile communication base station to RRU device Signal transmissions.
Description
Technical field
The utility model relates to a kind of cable assembly, and espespecially a kind of outdoor cable assemblies being applicable to BBU and RRU and connecting, is called FTTXA fiber optic stretch jumping fiber, belongs to 4G communication technical field.
Background technology
By the promotion of smart mobile phone, panel computer and notebook computer, the capacity of operator 3G and 4G network, area coverage and single user active volume demand increase day by day.Extend thus, multi-frequency network and the antenna set up on antenna tower needed for new business, become the inevitable choice of operator.Meanwhile, this also becomes two maximum obstructions that operator faces.
For the operator at multiple frequency range (comprise 700,850,900,1800,2300 and 2600MHz frequency range) operational network, this has become modal situation.Only several years ago, cellular carrier only needs installation 2 port (one-segment), 4 ports (two-band) and 6 ports (three frequency ranges) antenna to meet current situation.The operator of now is while will look after current requirement, and another side also will be considered and install 10 ports and 12 terminal port antennaes in the near future, to cover the full frequency band combination plan in their future.
Along with the increase of frequency range coverage rate, also when the river rises the boat goes up for the bandwidth sum relevant art of antenna.Coaxial feeder cables in the cellular technology of the first generation and the second generation cannot meet current needs.In this case, fiber optic stretch is this once seemed very advanced technology, had nowadays become the General Requirement of modern base station.
Fiber optic stretch occurs with remote radio and optical fiber repeater technology, the position being achieved baseband signal and radiofrequency signal by the excellent transport property of optical fiber is far away, thus facilitate the installation of Cell Site Placement, antenna feeder, and can Appropriate application carrier frequency resource, be the very fast technology of generation development in recent years.
3G network uses distribution-type base station architecture in a large number, RRU(radio frequency remoto module) and BBU(baseband processing unit) between need to use Fiber connection.A BBU can support multiple RRU.Adopt BBU+RRU Multi channel, the in-door covering of large stadium can be solved well.
Along with 4G LTE builds day by day closing on of step, jumbo distributed base station construction scale also expanding day, namely this wherein main content is utilize the excellent transport property of optical fiber to realize Base Band Unit (BBU) to zoom out with the signal of Remote Radio Unit (RRU), thus facilitate the installation of base station, the installation of antenna feeder, Appropriate application carrier frequency resource.
But, an incident problem is also increasingly serious, a usual BBU meeting is connected with between at least three RRU, and the cable resource between each BBU and RRU is very limited, if each link adopts technology traditional at present, i.e. two fine one-way transmission, so limited cable resource very soon can be depleted, and spending rate is far longer than construction speed, the construction cost brought thus arrives greatly cannot be estimated, can far beyond the several times of distributed base station construction cost own.
Summary of the invention
The purpose of this utility model is the shortcoming in order to overcome above-mentioned background technology, provides a kind of outdoor four optical-fiber cable assembly being applicable to BBU and RRU and connecting.
The technical solution of the utility model is: a kind of four optical-fiber cable assembly, comprise middle part main cable, head end branched cable, be positioned at head end and tail end optical fiber LC connector, is connected main cable and optical fiber LC connector the first deconcentrator, be connected in the middle part of main cable and head end branched cable fiber cable branch device and be connected the second deconcentrator of head end branched cable and optical fiber LC connector, also comprise the fiber cable branch device be positioned in the middle part of optical cable, this fiber cable branch device comprises upper casing, lower casing, take-off pipe and inner pressure ring; Described upper casing is arranged on the top of take-off pipe; Described lower casing is arranged on the bottom of take-off pipe; Described take-off pipe is Y type, and wherein one end connects inner pressure ring, and each port at another two ends connects two inner pressure rings respectively; Described inner pressure ring is connected with middle part main cable by the double wall heat draw, and described another two inner pressure rings are connected with head end branched cable respectively by two double wall heat draws; Described inner pressure ring riveting is in middle part main cable and branched cable; Penetrate in take-off pipe after described middle part main cable and branched cable riveting inner pressure ring, middle part main cable is connected with head end branched cable and middle part main cable is carried out homogeneously branched.
Described take-off pipe to be arranged between upper casing and lower casing and to be fixedly connected with by lock-screw, realizes fixing to take-off pipe of upper casing and lower casing.
The riveting position of described double wall heat draw parcel take-off pipe, realizes the sealing of middle part main cable and branched cable.
The beneficial effects of the utility model are: the utility model is a kind of sealing to through the wall infrastructure product, once can pass through four-core fiber, light path remote equipment and base station equipment is coupled together by the twin-core LC plug at plug wire jumper two ends, wherein the second deconcentrator is fixed on RRU cabinet, for fixing DLC plug wherein, and ensure through energy waterproof sealing during remote equipment, cable outer sheath uses halogen-free low-smoke flame retardant material (LSZH), is applicable to the indoor main control unit in mobile communication base station to RRU device Signal transmissions.The utility model compared with prior art has following advantages: 1, transmission cable length 0 ~ 20km; 2, application signal speed STM-1/155M, STM-4/622M, GE, STM-16/2.5G; 3, application signal pattern: single mode, multimode; 4, optical fiber saving resource: maximum 8 road signals (i.e. 8 RRU and 1 BBU) can be realized and transmit in a pair transmission cable fibre core.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the rear view of Fig. 1;
Fig. 3 is the cut-open view of Fig. 1;
Fig. 4 is the front view that the utility model removes upper casing;
Fig. 5 is the rear view that the utility model removes lower casing;
Fig. 6 is fiber cable branch device decomposition view of the present utility model;
Wherein: 1, optical fiber LC connector; 2, the first deconcentrator; 3, the second deconcentrator; 4, upper casing; 5, take-off pipe; 6, head end branched cable; 7, inner pressure ring; 8, lower casing; 9, middle part main cable; 10, the double wall heat draw; 11, lock-screw.
Embodiment
The present embodiment is a kind of four optical-fiber cable assembly, as shown in Fig. 1 ~ Fig. 5, comprise middle part main cable (9), head end branched cable (6), be positioned at the optical fiber LC connector (1) of head end and tail end, connect first deconcentrator (2) of main cable (9) and optical fiber LC connector (1), connect middle part main cable (9) and the fiber cable branch device of head end branched cable (6) and the second deconcentrator (3) being connected head end branched cable (6) and optical fiber LC connector (1), as shown in Figure 6, also comprise the fiber cable branch device be positioned in the middle part of optical cable, this fiber cable branch device comprises upper casing (4), lower casing (8), take-off pipe (5) and inner pressure ring (7), described upper casing (4) is arranged on the top of take-off pipe (5), described lower casing (8) is arranged on the bottom of take-off pipe (5), described take-off pipe (5) is in Y type, and wherein one end connects inner pressure ring (7), and each port at another two ends connects two inner pressure rings (7) respectively, described inner pressure ring (7) is connected with middle part main cable (9) by the double wall heat draw (10), and described another two inner pressure rings are connected with head end branched cable (6) respectively by two double wall heat draws (10), described inner pressure ring (7) riveting is in middle part main cable (9) with branched cable (6), penetrate in take-off pipe (5) after described middle part main cable (9) and branched cable (6) riveting inner pressure ring (7), middle part main cable (9) is connected with head end branched cable (6) and middle part main cable (9) is carried out homogeneously branched.
Described take-off pipe (5) is arranged between upper casing (4) and lower casing (8) and is also fixedly connected with by lock-screw (11), realizes upper casing (4) and lower casing (8) fixing take-off pipe (5).
The riveting position of the described double wall heat draw (10) parcel take-off pipe (5), realizes the sealing of middle part main cable (9) and branched cable (6).
Claims (3)
1. a four optical-fiber cable assembly, comprise middle part main cable, head end branched cable, be positioned at head end and tail end optical fiber LC connector, is connected main cable and optical fiber LC connector the first deconcentrator, be connected in the middle part of main cable and head end branched cable fiber cable branch device and be connected the second deconcentrator of head end branched cable and optical fiber LC connector, it is characterized in that: also comprise the fiber cable branch device be positioned in the middle part of optical cable, this fiber cable branch device comprises upper casing, lower casing, take-off pipe and inner pressure ring; Described upper casing puts the top at take-off pipe; Described lower casing is arranged on the bottom of take-off pipe; Described take-off pipe is Y type, and wherein one end connects inner pressure ring, and each port at another two ends connects two inner pressure rings respectively; Described inner pressure ring is connected with middle part main cable by the double wall heat draw, and described another two inner pressure rings are connected with head end branched cable respectively by two double wall heat draws; Described inner pressure ring riveting is in middle part main cable and branched cable; Penetrate in take-off pipe after described middle part main cable and branched cable riveting inner pressure ring.
2. a kind of four optical-fiber cable assembly as claimed in claim 1, is characterized in that described take-off pipe to be arranged between upper casing and lower casing and to be fixedly connected with by lock-screw.
3. a kind of four optical-fiber cable assembly as claimed in claim 1, is characterized in that the riveting position of described double wall heat draw parcel take-off pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817312.7U CN204269891U (en) | 2014-12-22 | 2014-12-22 | A kind of four optical-fiber cable assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817312.7U CN204269891U (en) | 2014-12-22 | 2014-12-22 | A kind of four optical-fiber cable assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269891U true CN204269891U (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817312.7U Expired - Fee Related CN204269891U (en) | 2014-12-22 | 2014-12-22 | A kind of four optical-fiber cable assembly |
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| CN (1) | CN204269891U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865657A (en) * | 2015-05-27 | 2015-08-26 | 成都美美通信技术有限公司 | Easy-mounting fiber splitter |
| CN107577011A (en) * | 2017-10-26 | 2018-01-12 | 北极光电(深圳)有限公司 | A kind of micro optical cable interconnector with wavelength-division multiplex function |
| CN109856743A (en) * | 2019-03-05 | 2019-06-07 | 深圳市晟科通信技术有限公司 | Fiber cable branch device |
| CN112505860A (en) * | 2020-12-02 | 2021-03-16 | 中天射频电缆有限公司 | Photoelectric hybrid cable with branching structure and branching method of photoelectric hybrid cable body |
| CN115079360A (en) * | 2022-05-24 | 2022-09-20 | 江苏俊知传感技术有限公司 | 2-core optical fiber cable assembly in 5G communication system and application |
| CN117388761A (en) * | 2023-12-11 | 2024-01-12 | 国网山东省电力公司淄博供电公司 | Multi-core secondary cable core wire device and method based on variable frequency resonance |
-
2014
- 2014-12-22 CN CN201420817312.7U patent/CN204269891U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865657A (en) * | 2015-05-27 | 2015-08-26 | 成都美美通信技术有限公司 | Easy-mounting fiber splitter |
| CN107577011A (en) * | 2017-10-26 | 2018-01-12 | 北极光电(深圳)有限公司 | A kind of micro optical cable interconnector with wavelength-division multiplex function |
| CN109856743A (en) * | 2019-03-05 | 2019-06-07 | 深圳市晟科通信技术有限公司 | Fiber cable branch device |
| CN109856743B (en) * | 2019-03-05 | 2024-02-09 | 深圳市晟科通信技术有限公司 | Optical cable branching device |
| CN112505860A (en) * | 2020-12-02 | 2021-03-16 | 中天射频电缆有限公司 | Photoelectric hybrid cable with branching structure and branching method of photoelectric hybrid cable body |
| CN115079360A (en) * | 2022-05-24 | 2022-09-20 | 江苏俊知传感技术有限公司 | 2-core optical fiber cable assembly in 5G communication system and application |
| CN117388761A (en) * | 2023-12-11 | 2024-01-12 | 国网山东省电力公司淄博供电公司 | Multi-core secondary cable core wire device and method based on variable frequency resonance |
| CN117388761B (en) * | 2023-12-11 | 2024-03-19 | 国网山东省电力公司淄博供电公司 | Multi-core secondary cable core wire device and method based on variable frequency resonance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20181222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |