WO2016006858A1

WO2016006858A1 - Optoelectronic hybrid cable, and terminal box for optoelectronic hybrid cable

Info

Publication number: WO2016006858A1
Application number: PCT/KR2015/006706
Authority: WO
Inventors: 백종섭; 옥수곤; 진성수
Original assignee: 엘에스전선 주식회사
Priority date: 2014-07-11
Filing date: 2015-06-30
Publication date: 2016-01-14

Abstract

The present invention relates to: a terminal box for an optoelectronic hybrid cable, having improved workability for a connection operation between the optoelectronic hybrid cable and a jumper cable at a base station, and a minimised installation space; and an optoelectronic hybrid cable mounted in the terminal box and diverging therefrom.

Description

Terminal box for photoelectric cable and photoelectric cable

The present invention relates to a photoelectric composite cable and a terminal box for the photoelectric composite cable. More specifically, the present invention relates to a terminal box for a photoelectric composite cable and a branched and mounted photoelectric cable which is improved in workability of the connection operation between the photoelectric composite cable and the jumper cable in the base station and minimized the installation space. .

In the conventional mobile communication, a communication station transmits a communication signal to a base station, and the RF signal transmitted from the base transceiver station (BTS) of the base station is wirelessly transmitted through the base station antenna. In addition, the radio signal transmitted from the portable terminal of the user is received by the base station antenna and the received signal is amplified through the TMA (Tower Mount Amplifier) is transmitted to the BTS.

At this time, the BTS, the TMA and the antenna of the base station are connected to the coaxial feeder, but the coaxial feeder has a large signal loss as the cable length increases. When the antenna is installed in a tower of several tens of meters in height, the loss is increased in the coaxial feeder connecting the ground base station and the antenna, and the signal provided from the base station is required by the antenna due to the loss of the signal of the coaxial feeder. Since the signal does not reach the strength of the signal and is attenuated, a TMA (Tower Mounted Amplifier) is installed to compensate for and amplify it.

However, since the TMA consumes a relatively large amount of power in order to amplify the signal, in terms of the overall system, maintenance is costly and it is accompanied by a problem of low efficiency.

Base station equipment has evolved with the evolution of FTTx (Fiber to the X) and the miniaturization of repeaters. The optical unit is characterized in that the signal attenuation according to the cable length is very small compared to the coaxial cable. By applying these advantages, RRH (Remote Radio Head), a technology that transmits an optical signal up to the base station antenna to minimize the loss of the signal and converts the optical signal into an RF signal capable of radiation immediately before the antenna, has emerged.

The RRH (Remote Radio Head) is a supplement to the disadvantages of power consumption and maintenance of a mobile communication base station using a conventional TMA. The RRH separates the RRU (Remote RF Unit) from the conventional BTS, places it under the antenna of the base station tower, and remotely controls it.

Here, the rest of the existing BTS in which the RRU is separated from the RRH, that is, the baseband unit (BBU) and the power supply unit (PSU), are connected to the RRU by a photoelectric composite cable including an optical unit and a power line unit having little attenuation per length. In a baseband unit (BBU) and a power supply unit (PSU), communication signals are supplied to a remote RF unit (RRU) through an optical unit constituting a photoelectric composite cable, and power is supplied to the RRU through a power line unit constituting a photoelectric composite cable. It is supplied to (Remote RF Unit).

Since the RRU (Remote RF Unit) can be installed directly below the base station antenna at the top of the base station tower, the length of the coaxial feeder for supplying a signal converted into an RF signal by the RRU (Remote RF Unit) to the antenna is minimized and coaxial. Since the RF signal attenuation generated during the transmission of the RF signal through the wire is not a problem, the amount of attenuation of the signal up to just before radiation is minimized, and the need for a TMA, which uses a lot of power consumption, is eliminated. This technical feature has become a feature of RRH in terms of maintenance of base stations.

In this RRH system, a baseband unit (BBU), a power supply unit (PSU) and a remote RF unit (RRU) are connected through a terminal box for a photoelectric composite cable.

That is, in the photoelectric composite cable, a single optical unit and a power line unit are cabled together, and a plurality of remote RF units (RRUs) installed in a baseband unit (BBU), a power supply unit (PSU), and one tower are connected to the photoelectric composite cable. It may not be directly connected, and the method in which the power line unit and the optical unit are branched and connected to the plurality of RRUs in the terminal box for the photoelectric composite cable may be used.

When branching a photoelectric composite cable into a plurality of jumper cables, a plurality of power line units and an optical unit constituting the photoelectric composite cable in the cable terminal box and a power line unit and an optical unit constituting each jumper cable are placed in the terminal box. The connection should be made using a connector.

As the number of base station antennas increases according to a communication company or a communication method, the number of RRHs or terminal boxes increases accordingly. Therefore, the number of RRHs may be large even when the number of photoelectric composite cables drawn into one terminal box is small. Therefore, the base station management worker is required to take a lot of time and effort because the operation of connecting the power line unit and the optical unit of the jumper cable to each power line unit and the optical unit in the terminal box by removing the photoelectric composite cable.

There is a need to improve the connection work of the terminal box connecting the photoelectric composite cable and the jumper cable in a rapidly changing environment and a variety of carriers or communication methods.

In addition, the connection work of the terminal box for connecting the photoelectric composite cable and the jumper cable was performed at the base station. That is, the photoelectric composite cable is pulled up while the terminal box is installed on the base station, and the optical unit and the power unit are connected to the jumper cable connection unit in the terminal box.

In this regard, in US Patent Publication No. US2013 / 0108227, a technique is described in which a jumper cable is mounted in a state in which a photoelectric cable is connected in advance, a jumper cable is connected, and a terminal box is installed in a base station. It is not easy to pull the photoelectric cable to the base station antenna located several tens of meters with the terminal box mounted at the end, and there is enough passage for the terminal box to pass through the terminal box and the photoelectric cable. It should be secured and is likely to be damaged during the transfer of bulky terminal boxes.

In addition, in the situation that the number of antennas installed in one base station increases according to a communication company or communication method, and thus the number of RRHs or terminal boxes increases, the shape of the terminal box introduced in US2013 / 0108227 has a width of the housing. There is a problem that occupies a large installation space.

The present invention is to solve the problem to provide a photoelectric composite cable terminal box and a photoelectric composite cable detachably mounted to the terminal box and the workability of the connection operation between the photoelectric composite cable and the jumper cable in the base station is minimized. We assume problem to do.

In order to solve the above problems, the present invention provides a terminal box for a photoelectric composite cable for branching at least one photoelectric composite cable including a plurality of power line units and a plurality of optical units into a plurality of jumper cables, the housing, the housing A plurality of jumper connection units provided on an outer surface of the housing and provided on an outer surface of the housing, each of which includes an optical terminal and a power terminal for detachably mounting a jumper connector of the jumper cable; In order to detachably mount the cable connector, the at least one cable connection unit having a plurality of optical terminals and a plurality of power terminals, the optical terminal of the jumper connection unit and the optical terminal of the cable connection unit for connecting the inside of the housing A plurality of connecting optical units and the jumper connecting unit It is possible to provide a terminal box for a photoelectric composite cable comprising; power terminals and a plurality of power connection unit for connecting the power terminal of the cable connecting unit within the housing.

In this case, the housing may be configured in the shape of a polygonal pillar.

The cable connection unit may be provided at one end in the longitudinal direction of the housing.

Here, the jumper connecting unit may be arranged in at least one row or more along at least one surface of the outer surface of the housing along the longitudinal direction of the housing.

In addition, the connection optical unit may be detachably mounted from the optical terminal of the jumper connection unit and the optical terminal of the cable connection unit.

The connection power unit may be detachably mounted from the power terminal of the jumper connection unit and the power terminal of the cable connection unit.

In this case, the optical connector of the cable connector and the cable connection unit may be disposed in the center, and the power terminal may be disposed around the optical terminal.

In this case, the jumper connector of the jumper cable and the power terminal of the jumper connection unit are provided with a pair, the optical terminal is provided with two pairs, and the two power terminals constituting the pair are arranged spaced apart from each other, and constitute two pairs. Each pair of optical terminals may be spaced apart in a direction perpendicular to the direction in which the power terminals are spaced apart.

In addition, in order to solve the above problems, the present invention provides a plurality of optical units, a plurality of power units, the plurality of optical units and the plurality of power units in a hybrid cable is connected to the terminal box of the mobile communication base station branched; A cable connector including a jacket surrounding the jacket, a plurality of optical terminals each of which is connected to an end of the optical unit, and a plurality of power terminals each of which is connected to an end of the power unit, wherein the cable connector is a cable provided in the terminal box. It is possible to provide a photoelectric composite cable which is fastened to the connection unit detachably.

The optical connector of the cable connector provided at the end of the photoelectric composite cable and the cable connection unit provided in the terminal box may be disposed at a central portion thereof, and the power terminal may be disposed around the optical terminal.

According to the terminal box for the photoelectric composite cable according to the present invention, in the process of connecting the BBU or PSU and the RRU constituting the RRH system through the terminal box for the photoelectric composite cable, the connection work in the photoelectric composite cable terminal box is omitted. The workability of the connection work between the photoelectric composite cable and the jumper cable at the base station can be improved.

In addition, according to the terminal box for the photoelectric composite cable according to the present invention, when the photoelectric composite terminal box and the photoelectric composite cable is configured separately, the terminal box for the photoelectric composite cable of various types according to the environment of the base station to select the space utilization Can be improved.

In addition, according to the terminal box for the photoelectric composite cable according to the present invention, the connection work in the terminal box for the photoelectric composite cable can be performed with minimal waste of the receiving space inside the terminal box during the manufacturing process of the terminal box for the photoelectric composite cable Also, the appearance of the terminal box for the photoelectric composite cable can be made more compact.

1 is a block diagram of a base station in which a terminal box for a photoelectric composite cable according to the present invention is installed.

2 illustrates one embodiment of a photoelectric composite cable.

3 shows a terminal box for a photoelectric composite cable according to the present invention.

4 is a perspective view of a jumper connector of a jumper cable mounted to the terminal box for the photoelectric composite cable shown in FIG. 3 and a jumper connection unit to which the jumper connector of the jumper cable is mounted.

5 illustrates a process of mounting a terminal box according to the present invention and a photoelectric composite cable according to the present invention.

6 illustrates a process in which the connection optical unit and the connection power unit are mounted in the terminal box according to the present invention.

7 illustrates terminal boxes for a photoelectric composite cable according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure may be made thorough and complete, and to fully convey the spirit of the present invention to those skilled in the art. Like numbers refer to like elements throughout.

1 is a block diagram of a base station in which a terminal box 200 for a photoelectric composite cable according to the present invention is installed.

The base station 1 of the RRH method is characterized in that the RRU (40, Remote RF Unit) is separated from the conventional BTS base station and disposed below the antenna 20 of the base station tower and remotely controlled.

Here, in the RRH base station system 1, the remaining portion 10 of the existing BTS base station in which the RRU 40 is separated, that is, the baseband unit (BBU), the power supply unit (PSU), and the RRU have attenuation per length. It is connected to the photoelectric composite cable 100 including an almost no optical unit and a power line unit.

In a baseband unit (BBU) and a power supply unit (PSU), communication signals are supplied to the RRU 40 through an optical unit constituting a photoelectric composite cable, and power is supplied to the RRU 40 through a power line unit constituting a photoelectric composite cable. Is supplied.

Since the RRU 40 may be installed directly below the base station antenna 20 on the base station tower, the length of the coaxial line 30 for supplying a signal converted into an RF signal from the RRU 40 to the antenna 20. Since the attenuation of the RF signal generated during the RF signal transmission through the coaxial line is minimized is not a problem, the amount of attenuation of the signal up to just before radiation is minimized, and there is no need for a TMA that uses a lot of power consumption. This technical feature has become a feature of RRH in terms of maintenance of base stations.

As shown in FIG. 1, the RRH base station system 1 includes a baseband unit (BBU), a power supply unit (PSU), and a remote RF unit (RRU) according to the present invention. ) Is connected through.

That is, the photoelectric composite cable 100 is an optical unit and a power line unit in which one cable is formed, and various forms are installed in one tower and a portion 10 composed of a baseband unit (BBU) and a power supply unit (PSU). A plurality of RRUs (Remote RF Unit) of the can not be directly connected, each optical unit and power line unit constituting the photoelectric composite cable 100 is branched from the terminal box for the photoelectric composite cable 200 and the plurality of RRU and A manner in which each of the jumper cables 50 is connected may be used.

In recent years, a variety of portable terminals have been diversified, and new and different terminals coexist with different communication methods according to communication generations, and a tower for installing an antenna 20 constituting an RRH between mobile operators is shared. Equipment such as RRUs, which constitute dozens of RRHs, was installed in the building, limiting the installation space of the tower and increasing the burden on the installation.

In addition, when the worker works through the terminal box, the connection work for connecting the optical unit and the power line unit constituting the photoelectric composite cable 100 and the optical unit and the power line unit constituting the jumper cable 50 has a considerable working time. Require.

Therefore, the terminal box 200 for the photoelectric composite cable connected to various RRU equipment is also minimized in volume, thereby minimizing the space constraints installed in the tower for installing the antenna 20 and for easily performing the connection work. Terminal box is required.

Hereinafter, after examining the structure of the photoelectric composite cable, the terminal box for the photoelectric composite cable according to the present invention will be examined in detail.

2 illustrates one embodiment of a photoelectric composite cable. Specifically, Figure 2 (a) shows a multi-stage stripped perspective view of the photoelectric composite cable, Figure 2 (b) shows a cross-sectional view of the photoelectric composite cable.

Referring to FIG. 2, the photoelectric composite cable 100 may include a cable core 105 and an outer shell 150 surrounding the cable core 105.

The cable core 105 may include a plurality of power line units 110 for supplying power and a plurality of optical units 130 for transmitting optical signals.

A central tensile line 145 may be provided at the center of the photoelectric composite cable 100 in order to prevent the photoelectric composite cable 100 from being bent more than necessary or to provide support for tensile force.

The center tension line 145 is located at the center of the photoelectric composite cable 100 to provide a resistance against repulsive force or tensile force, when bending force acts on the photoelectric composite cable 100, thereby providing a photoelectric composite cable ( 100) is prevented from breaking or breaking more than necessary, and serves to support the shrinkage of the tube due to temperature changes. As a result, damage to the optical unit 130 or the power line unit 110 can be prevented.

A plurality of optical units 130 may be disposed in the longitudinal direction of the photoelectric composite cable on an outer circumferential surface of the center tensile line 145.

In addition, a protective layer 140 may be further provided outside the plurality of optical unit 130 layers to protect the optical unit 130.

When comparing the optical unit 130 and the power line unit 110, the optical unit 130 is smaller in diameter than the power line unit 110, the optical fiber 133 provided in the optical unit 130 is bending or disconnection Since it is relatively more vulnerable, the optical unit 130 may be disposed on the outer circumferential surface of the center tensile line 145, and the power line unit 110 may be disposed on the outer circumferential surface of the protective layer after wrapping the outside with the protective layer 140. .

In addition, the cable core 105 may further include a filler 120 filling a gap between the plurality of power line units 110 or the optical unit 130.

Since the power line unit 110 has a circular shape, voids or play are generated between neighboring power line units. In such a configuration, the entire appearance of the photoelectric composite cable 100 may not maintain a circular shape, thereby making it vulnerable to bending or impact acting on the outside. Therefore, the voids in the cable core 105 may be filled with the filler 120, and the shape of the filler 120 may be maintained in a circular shape to withstand external impacts.

The cable core 105 may further include a nonwoven tape 153 to surround the outer circumference of the cable core 105 at the outermost portion.

The outer shell layer 150 is provided outside the cable core 105. The outer skin layer 150 may include a metal protective layer 151 having a pleat 152 formed of a pleated mountain and a pleated bone repeatedly to surround the cable core 105.

The metal protective layer 151 may be made of a metal pipe such as aluminum in a corrugated form in which the corrugated acid 152A and the corrugated bone 152B are repeatedly formed. Referring to the method of forming the metal protective layer 151, a plate-type metal plate material is supplied together with a cable core including an optical unit and a power line unit, and the metal plate material is rolled and molded to surround the outside of the cable core. Thereafter, both ends of the abutted metal sheet are joined together by welding or the like to form a pipe having a predetermined diameter. Subsequently, pressing may be performed at a predetermined interval so as to form a corrugation to the outside of the pipe.

The outer skin layer 150 provided at the outermost portion of the photoelectric composite cable 100 is a part forming the outer shape of the photoelectric composite cable 100, and includes the optical unit 130 and the power line unit 110 included in the photoelectric composite cable 100. Protect.

The outer skin layer 150 is inscribed in the cable core 105, the metal protective layer 151 and the metal protective layer (151) and surrounding the cable core 105 in a circular shape to protect the cable core 105 from external impact ( It may include an outer jacket 155 surrounding the 151.

The outer jacket 155 may be composed of a flame-retardant and environmentally friendly resin. For example, the outer jacket 155 may be made of polyethylene, polypropylene, polyvinyl chloride, or the like.

The cable core 105 may further include a nonwoven tape 153 surrounding the outer circumference of the cable core 105 and surrounding the power line unit 110 and the optical unit 130 in a circular shape. The nonwoven tape 153 may be a compressed nonwoven fabric to surround the optical unit and the power line unit therein.

The nonwoven tape 153 may be formed in such a manner as to roll or terminate the material in the form of a tape.

On the other hand, the optical unit 130 may be configured in any form, including an optical fiber for the transmission of the optical signal, for example, at least one core or more optical fibers 133, and a tube surrounding the optical fiber 133 ( 135). The tube 135 may be made of, for example, polybutylene terephthalate (PBT), polypropylene, polyethylene, polyvinyl chloride, or the like. In addition, a filler may be filled in the tube 135. For example, jelly may be filled or a tension member 137 such as aramid yarn may be filled. The tension member 137 is excellent in tensile force and flexible to enable the cable to be installed stably.

The optical unit 130 may be configured in a required form among various forms such as a tight buffer method or a loose tube method.

Each of the power line units 110 includes a conductor 113 and an insulator 115 surrounding the conductor 113. The power line unit 110 may be formed in a form conforming to a standard used for general power, and the plurality of conductors 113 may be twisted with each other. In addition, the conductor 113 may be made of a metal such as copper, aluminum, and the insulator 115 may be made of a polymer resin such as polyethylene, polypropylene, or polyvinyl chloride.

As described above, the photoelectric composite cable 100 constitutes a jumper cable 50 connected to the remote wireless unit 40 after the power line unit 110 and the optical unit 130 are branched in the terminal box 200. It must be connected to the power line and the optical unit respectively.

In the process of combining the power line unit 110 and the optical unit 130 into a jumper cable 50 in the terminal box 200, interference between the power line unit 110 and the optical unit 130 may occur. This can be a major factor in reducing the work efficiency of the operator to increase the time and cost of configuring the terminal box 200.

Therefore, the operation of the connection operation between the photoelectric composite cable and the jumper cable 50 in the base station according to the present invention will be described in detail with respect to the photoelectric terminal box with improved installation and minimized installation space.

3 shows a terminal box 200 for a photoelectric composite cable according to the present invention, and FIG. 4 shows a jumper connector 50c of a jumper cable 50 mounted to the terminal box 200 for a photoelectric composite cable shown in FIG. 3. ) And a perspective view of the jumper connection unit 230 to which the jumper connector 50c of the jumper cable 50 is mounted.

The present invention relates to a terminal box for photoelectric composite cable for branching at least one photoelectric composite cable including a plurality of power line units and a plurality of optical units into a plurality of jumper cables, the housing 210 of the housing 210. It is provided on the outer surface, in order to detachably mount the jumper connector 50c of the jumper cable 50, a plurality of jumper connection unit 230 having an optical terminal and a power terminal, respectively, on the outer surface of the housing 210 At least one cable connection unit 260 provided with a plurality of optical terminals and a plurality of power terminals to detachably mount the cable connector 100c provided at an end of the photoelectric composite cable 110. A plurality of connection optical units (not shown) for connecting the optical terminal of the jumper connection unit 230 and the optical terminal of the cable connection unit 260 in the housing, and A terminal box for a photoelectric composite cable including a plurality of connection power units (not shown) for connecting the power terminal of the jumper connection unit 230 and the power terminal of the cable connection unit 260 in the housing. Can be.

The housing constituting the terminal box 200 for a photoelectric composite cable according to the present invention constitutes an outer shape of the terminal box 200, and the housing 210 may be configured in a polygonal pillar shape.

A plurality of jumper connection units 230 to which the jumper cable 50 is detachably mounted may be provided on at least one of the outer surfaces of the housing 210.

And, as shown in Figure 3, the jumper connecting unit 230 is provided in a plurality of two rows on at least one surface of the outer surface of the polygonal pillar-shaped housing 210, the number of rows can be increased or decreased.

The terminal box 200 for the photoelectric composite cable shown in FIG. 3 is provided with a total of six jumper connection units 230 on the front of the housing. However, the number may be increased or decreased, and the outer surface of the housing in which the jumper connection unit 230 is provided is not limited to one front surface or one specific surface.

In the terminal box 200 for a photoelectric composite cable according to the present invention, at least one photoelectric composite cable 100 and a plurality of jumper cables 50 may be detachably mounted from the terminal box 200, respectively.

Specifically, in the optical unit and the power line unit constituting the photoelectric composite cable 100 through the plurality of jumper cables 50 through the terminal box 200, respectively, the optical unit and the power line in the terminal box 200 Rather than performing a connection operation of the unit, the photoelectric cable 100 and the jumper cable 50 are provided with connectors, respectively, which are detachably mounted to the cable connection unit 260 and the jumper connection unit 230 of the terminal box. Use the method.

Therefore, each of the at least one cable connection unit 260 and the plurality of jumper connection units 230 is a jumper provided at the end of the cable connector 100c and the jumper cable 50 provided at the end of the photoelectric composite cable 100. The structure corresponding to the connector 50c and the corresponding terminal must be provided.

First, with reference to FIG. 4, the structure of the jumper connector 50c of the jumper cable 50 and the jumper connection unit 230 provided in the terminal box 200 is demonstrated. The cable connector 100c of the photoelectric composite cable 100 will be described later with reference to FIG. 5.

Connection terminals are provided for mounting the jumper connector 50c provided at the end of the jumper cable 50, respectively. The embodiment shown in FIG. 4 is composed of a pair of power terminals 233 and two pairs of optical terminals 235.

And, as shown in Figure 4, when the power terminal 233 and the optical terminal 235 of the jumper connection unit 230 is composed of a male, the power terminal 53 and the optical terminal 55 of the jumper connector 50c May be configured as a female type. Of course, on the contrary, the male and female terminals may be mounted.

In addition, the

housings

231 and 52 of the jumper connection unit 230 and the jumper connector 50c may be configured to allow the

screw threads

237 and 57 to be screwed, respectively, to stably maintain the connection state of the connection terminal. have.

In addition, the jumper connection unit 230 provided in the housing 210 of the terminal box 200 for a photoelectric composite cable according to the present invention is mounted with the jumper connector 50c of the jumper cable 50, respectively, the optical terminal 235 and Each of the optical terminals 235 and the power terminals 233 may be directly or indirectly connected to the optical unit and the power line unit of the photoelectric composite cable which is introduced into the terminal box 200 for the photoelectric composite cable. have.

And, as shown in Figure 4, the jumper connector 50c of the jumper cable 50 and the

power terminals

233, 53 of the jumper connection unit 230 is provided with a pair,

optical terminals

235, 55 Are provided with two pairs, and the two power terminals constituting the pair are disposed to be spaced apart from each other to prevent short, etc., and the optical terminals of each pair constituting the two pairs are perpendicular to the direction in which the power terminals are spaced apart from each other. It may be configured to be spaced apart.

The terminal box 200 for a photoelectric composite cable according to the present invention may allow at least one photoelectric composite cable 100 to be detachably mounted to facilitate connection of a terminal box and a photoelectric composite cable at a base station.

Specifically, Figure 5 (a) is a perspective view of the photoelectric cable terminal box 200 and the photoelectric composite cable is separated in accordance with another embodiment of the present invention, Figure 5 (b) is a side perspective view 5 (c) shows a plan view of the cable connector 100c provided at the end of the photoelectric composite cable.

The terminal box 200 for the photoelectric composite cable shown in FIG. 5 is the same way that the jumper cable 50 is mounted to the jumper connection unit 230 through the jumper connector 50c. The cable connector 100c is mounted on the cable connector, and the cable connection unit 260 is provided to mount the cable connector 100c on the housing end of the terminal box 200 for the photoelectric composite cable.

In the terminal box 200, as illustrated in FIG. 5, the jumper connection unit 230 includes an optical terminal 235 and a power terminal 233, respectively, and each optical terminal 235 and a power terminal 233. ) Is an optical terminal 163 and a power terminal 165 provided in the cable connector 100c of the photoelectric composite cable to the terminal box 200 for the photoelectric composite cable and the connection optical unit 130 'provided in the housing and It may be connected via the connection power unit 110 '. Detailed descriptions of the connection optical unit 130 'and the connection power unit 110' will be given later.

As a result, the optical unit and the power unit of the jumper cable 50 mounted on the jumper connection unit 230 by the connection optical unit 130 'and the connection power unit 110' are the optical unit and the power of the cable photoelectric composite cable. Can be connected with the unit.

Therefore, the terminal box 200 is installed in the base station, the jumper connector 50c of the jumper cable 50 for connection with the RRH is simply mounted on the jumper connection unit 230 of the terminal box, the photoelectric composite cable 100 When the cable connector 50c is mounted on the cable connection unit 260, the connection between the jumper cable and the photoelectric composite cable can be completed.

In this way, the photoelectric composite cable and the terminal box are separately transported to the base station antennas, the terminal box is mounted, and the jumper cable and the photoelectric composite cable are connected to each other. This can simplify the operator's work at the base station antenna.

The cable connector 100c and the cable connection unit 260 are also provided with connection terminals including optical terminals and power terminals, and like the jumper connector 50c and the jumper connection unit 230, when one side is composed of a male terminal, the other side is It may be composed of a female terminal.

In addition, in the embodiment shown in FIG. 5, each of the power line units and the optical units constituting the jumper cable 50 and the photoelectric composite cable 100 may have the optical terminals of the respective connectors or even if the respective connectors are mounted on the respective connection units. Since only the power terminals are connected, a method for electrically or optically connecting the optical terminals and power terminals provided in the jumper connection unit 230 and the cable connection unit 260 provided at different positions of the housing of the terminal box in the housing. This is necessary.

Accordingly, the terminal box 200 according to the present invention includes a plurality of connection power units 110 ′ and a plurality of connection optical units 130 inside the terminal box to interconnect the optical terminals and power terminals of the respective connection sockets therein. Apply ').

Each of the connection power unit 110 'and the connection optical unit 130' includes a power terminal 233 and an optical terminal 235 of the jumper connection unit 230 provided in the housing, and a power terminal of the connector connection socket (not shown). And optical terminals (not shown).

Therefore, as long as the specification of the photoelectric composite cable allows, it can be combined with various types of terminal boxes, thereby providing various solutions according to the installation environment.

As shown in FIG. 5C, the optical terminal 165 and the power terminal 163 of the cable connector 100c have a power line unit disposed at the center thereof, similar to the structure of the photoelectric composite cable described with reference to FIG. 2. The power terminal 163 may be disposed around the central optical terminals 165 to correspond to the shape surrounding the optical unit.

That is, the optical terminal of the cable connector 100c and the cable connection unit 260 may be disposed in the center, and the power terminal may be arranged around the optical terminal.

In addition, a screw thread is formed on the housing inlet portion 211 surrounding the outside of the cable connection unit 260, and a screw thread is also formed on the inner circumferential surface of the connector cap 220 in the cable connector 100c to maintain the mounting state of the connector firmly. Can be.

Means for strengthening the mounting state of the jumper connector (50c) and the cable connector (100c) mounted on the jumper connection unit 230 and the cable connection unit 260 is a hook type or a separate fixing member in addition to the structure having a screw thread It can be applied in various ways such as using the finishing member.

In the embodiment shown in FIG. 5, each of the connection power unit 110 ′ and the connection optical unit 130 ′ is connected to the power terminal 233 and the optical terminal 235 of the jumper connection unit 230 provided in the housing. Although the power terminal 163 and the optical terminal 165 of the unit is connected to each other in a pre-connected and fixed form is shown, the connection power unit 110 'and the optical unit 130' is connected to the jumper Instead of being fixed to the power terminal 233 and the optical terminal 235 of the connection unit 230 and the power terminal 163 and the optical terminal 165 of the connector connection unit may be configured in a removable patchcoded form. That is, each connection unit is provided with only terminals, and optical connection or power connection inside the terminal box is adopted by using a connection power unit 110 'and a connection optical unit 130' as necessary. It can be configured to add or subtract connections inside the terminal box according to the needs or needs of the user.

That is, the connection optical unit 130 'may be detachably mounted from the optical terminal of the jumper connection unit 230 and the optical terminal of the cable connection unit 260, and the connection power unit 110' is connected to the jumper. It can be detachably mounted from the power terminal of the connection unit and the power terminal of the cable connection unit.

If the connection power unit 110 'and the connection optical unit 130' are configured to be detachably mounted from the terminals of the respective connection units, the terminal box shown in FIG. 3 is provided with six jumper connection units. In the case of connecting only four jumper connection units in consideration of the capacity of the photoelectric composite cable, it is not necessary to connect two jumper connection units and a cable connection unit which are not used, and there is an advantage of minimizing waste of cables and the like.

7 illustrates terminal boxes 200 for a photoelectric composite cable according to another exemplary embodiment of the present invention.

Specifically, FIG. 7 (a) illustrates an embodiment in which six jumper connection units 230 are provided in a line in a housing of a terminal box 200 for a photoelectric composite cable, and FIG. 7 (b) shows a terminal for a photoelectric composite cable. An example is provided in which the jumper connection unit 230 is provided at the housing of the box 200 in three lines on two sides of the outer surface of the housing, and FIG. 7 (c) is connected to the terminal box 200 for the photoelectric composite cable. An example in which two photoelectric composite cables are provided and a total of 20 jumper connection units 230 in five rows and four columns are shown.

The photoelectric composite cable 100 is connected to one end in the longitudinal direction of the housing constituting the terminal box, the jumper connecting unit 230 for mounting the jumper cable 50 is at least one row or more along the longitudinal direction of the housing It may consist of heat.

7 (a) is provided with a total of six jumper connection unit 230 as in the embodiment shown in Figures 5 and 6, but can be arranged in a line to minimize the width of the terminal box.

As shown in Figure 7 (b), the jumper connection unit 230 is not required to be installed only on one side. That is, in order to minimize the length of the jumper cable 50 according to the installation environment of the base station or the position of the RRU connected to the jumper cable, the jumper connection unit 230 is provided on a plurality of surfaces of the outer surface of the terminal box housing 210 having a polygonal pillar shape. It may be provided.

Therefore, FIG. 7 (b) has a total of six jumper connection units 230 as in the embodiment shown in FIGS. 5 and 6, but is common in that they are arranged in two rows in a row, but are arranged on different outer surfaces of the housing. There is a difference that the width of the terminal box can be reduced while the terminal box is minimized, and the length is minimized with respect to the embodiment shown in FIG.

As shown in FIG. 7C, a plurality of photo-

composite cables

100a and 100b are connected to the terminal box 200 for a photo-composite cable 200, that is, two dozens of foldable connection sockets in a plurality of columns and rows ( 230, it is also possible to maximize the space efficiency of the base station equipment installation space in response to a large capacity base station.

By constructing such various types of terminal boxes separately, and as described above, by configuring the photoelectric composite cable and the jumper cable to be detachably mounted from the terminal box, it is possible to provide an optimal terminal box according to the base station environment, Even if the number of jumper connection units and cable connection units is large, as shown in FIG. 6, when the connection optical unit and the connection power unit are detachably configured from each terminal, unnecessary cables may be minimized in the terminal box. Can improve the competitiveness of the product.

Although the present specification has been described with reference to preferred embodiments of the invention, those skilled in the art may variously modify and change the invention without departing from the spirit and scope of the invention as set forth in the claims set forth below. Could be done. Therefore, it should be seen that all modifications included in the technical scope of the present invention are basically included in the scope of the claims of the present invention.

Claims

A terminal box for photoelectric composite cable for branching at least one photoelectric composite cable including a plurality of power line units and a plurality of optical units into a plurality of jumper cables,

housing;

A plurality of jumper connection units provided on an outer surface of the housing, each of which comprises an optical terminal and a power terminal for detachably mounting a jumper connector of the jumper cable;

At least one cable connection unit provided on an outer surface of the housing and having a plurality of optical terminals and a plurality of power terminals for detachably mounting a cable connector provided at an end of the photoelectric composite cable;

A plurality of connecting optical units for connecting the optical terminals of the jumper connecting unit and the optical terminals of the cable connecting unit in the housing; And,

And a plurality of connection power units for connecting the power terminal of the jumper connection unit and the power terminal of the cable connection unit to the inside of the housing.
The method of claim 1,

The housing is a terminal box for a photoelectric composite cable, characterized in that configured in the shape of a polygonal pillar.
The method of claim 2,

The cable connection unit is a terminal box, characterized in that provided in the longitudinal end of the housing.
The method of claim 2,

The jumper connecting unit is disposed on at least one of the outer surface of the housing terminal box, characterized in that arranged in at least one row or more along the longitudinal direction of the housing.
The method of claim 1,

And the connection optical unit is detachably mounted from the optical terminal of the jumper connection unit and the optical terminal of the cable connection unit.
The method of claim 1,

And the connection power unit is detachably mounted from the power terminal of the jumper connection unit and the power terminal of the cable connection unit.
The method of claim 1,

The optical connector of the cable connector and the cable connection unit is disposed in the center, the power terminal is characterized in that arranged around the optical terminal.
The method of claim 1,

The jumper connector of the jumper cable and the power terminal of the jumper connection unit are provided with a pair, the optical terminal is provided with two pairs, and the two power terminals constituting the pair are spaced apart from each other, respectively, constituting the two pairs. The optical terminal of the pair is a terminal box, characterized in that spaced apart in the direction perpendicular to the direction in which the power terminals are spaced apart.
In the hybrid cable is connected to the terminal box of the mobile communication base station,

A plurality of optical units;

A plurality of power units;

A jacket surrounding the plurality of optical units and the plurality of power units; And,

And a cable connector including a plurality of optical terminals to which end portions of the optical unit are respectively connected, and a plurality of power terminals to which end portions of the power unit are respectively connected.

And the cable connector is detachably fastened to a cable connection unit provided in the terminal box.
The method of claim 9,

The optical connector of the cable connector provided at the end of the photoelectric composite cable and the cable connection unit provided in the terminal box is disposed in the center, the power terminal is disposed around the optical terminal.