KR20160007327A - Optical Fiber And Power Line Composite Cable and Terminal Box For The Same - Google Patents

Abstract

The present invention relates to a terminal box for an optoelectronic hybrid cable which has improved workability of a connection operation between the optoelectronic hybrid cable and a jumper cable in a base station, and minimizes an installation space; and an optoelectronic hybrid cable which is mounted in the terminal box, and splits therefrom. The terminal box for an optoelectronic hybrid cable comprises: a housing; a plurality of jumper connection units provided in an outer surface of the housing, and each comprising an optical terminal and a power terminal to detachably mount a jumper connector of the jumper cable; at least one cable connection unit provided in the outer surface of the housing, and comprising a plurality of optical terminals and a plurality of power terminals to detachably mount a cable connector provided in an end portion of the optoelectronic hybrid cable; a plurality of connection optical units for connecting, inside the housing, the optical terminal of the jumper connection unit and the optical terminal of the cable connection unit; and a plurality of connection power units for connecting, inside the housing, the power terminal of the jumper connection unit and the power terminal of the cable connection unit.

Description

TECHNICAL FIELD [0001] The present invention relates to a terminal box for a photoelectric composite cable and a photoelectric composite cable,

The present invention relates to a photoelectric composite cable and a terminal box for a photoelectric composite cable. More particularly, the present invention relates to a terminal box for a photoelectric composite cable and a photoelectric composite cable which are branched and attached to a terminal box, the workability of connection work between the photoelectric composite cable and the jumper cable at the base station is improved and the installation space is minimized .

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

At this time, although the BTS, the TMA and the antenna of the base station are connected by the coaxial feeder line, the signal loss is large as the length of the coaxial feeder cable increases. When the antenna is installed in a tower having a height of several tens of meters, a loss increases in a coaxial feeder line connecting a base station on the ground and the antenna, and a signal provided by the base station due to signal loss of the coaxial feeder is required To attenuate the signal without reaching the intensity of the signal, a Tower Mounted Amplifier (TMA) is installed to compensate and amplify the signal.

However, since the TMA consumes a relatively large amount of power in order to amplify the signal, the TMA requires a large amount of maintenance in terms of the overall system, which leads to a problem of inefficiency.

With the evolution of FTTx (Fiber to the X) and the miniaturization of repeaters, base station equipment has also evolved. The optical unit is characterized in that the signal attenuation according to the cable length is extremely small as compared with the coaxial cable. RRH (Remote Radio Head), which is a technology to convert optical signals into RF signals capable of emitting optical signals immediately before the antenna, has been introduced.

The remote radio head (RRH) is a complement to the inefficient 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 and places it remotely underneath the antenna of the base station tower.

The remaining part of the existing BTS in which the RRU is separated from the RRH, that is, the BBU (Baseband Unit) and the PSU (Power Supply Unit) are connected to the RRU by a photoelectric hybrid cable including an optical unit and a power line unit, , A communication signal from a Baseband Unit (BBU) and a Power Supply Unit (PSU) is supplied to an RRU (Remote RF Unit) through an optical unit constituting a photoelectric hybrid cable, and power is supplied to a RRU (Remote RF Unit).

Since the RRU (Remote RF Unit) can be installed just below the base station antenna at the top of the base station Tower, the length of the coaxial feeder for supplying the RF signal converted by the RRU (Remote RF Unit) to the antenna is minimized, Since the attenuation of the RF signal generated when the RF signal is transmitted through the line does not matter, the attenuation amount of the signal up to just before the radiation is minimized, and the necessity of the TMA using the conventional power consumption is eliminated. This technical feature has become a feature of the RRH in terms of the maintenance of the base station.

In this RRH system, the BBU (Baseband Unit), PSU (Power Supply Unit) and RRU (Remote RF Unit) are connected via a terminal box for photoelectric hybrid cable.

In other words, the photoelectric hybrid cable is composed of a plurality of RRUs (Remote RF Unit), which are installed in a BBU (Baseband Unit), a PSU (Power Supply Unit) and a tower, A method in which a power line unit and an optical unit are branched and connected to a plurality of RRUs in a terminal box for a photoelectric hybrid cable can be used.

When a single photoelectric composite cable is branched by a plurality of jumper cables, a plurality of power line units and optical units constituting a photoelectric composite cable in a cable terminal box, and a power line unit and an optical unit constituting each jumper cable, To be connected using a connector or the like.

As the number of base station antennas increases depending on the communication company or the 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 hybrid cables introduced into one terminal box is small. Therefore, the base station management worker needs to take a lot of time and effort because he / she has to perform the connection work of disconnecting the photoelectric hybrid cable and connecting the power line unit and the optical unit to the optical line unit and the power line unit of the jumper cable in the terminal box.

It is required to improve the connection work of the terminal box connecting the photoelectric composite cable and the jumper cable in a rapidly changing environment.

In addition, the connection operation of the terminal box connecting the photoelectric composite cable and the jumper cable was performed in the base station. That is, in a state in which the terminal box is installed on the base station, the photoelectric composite cable is pulled up, and the connection process of the connection unit of the jumper cable is performed in each of the optical unit and power unit in the terminal box.

In this regard, although a technique of mounting a jumper cable in a state where a photoelectric composite cable is connected in advance to US Patent Application Publication No. US2013 / 0108227 and a jumper cable is connected to a terminal and a terminal box is installed in a base station, It is not easy to raise the photoelectric composite cable to the base station antenna located at a height of several tens of meters while the terminal box is mounted at the end, and the terminal box and the photoelectric composite cable are pulled up by the base station antenna, And it is highly likely that a bulky terminal box will be damaged in the course of being transported.

Also, in the case where the number of antennas installed in one base station increases according to a communication company or a communication system, and accordingly, the number of RRHs or terminal boxes increases, the shape of the terminal box introduced in US2013 / 0108227, There is a problem that it occupies a large installation space.

The present invention provides a photoelectric composite cable for a photoelectric hybrid cable having improved operability in connection work between a photoelectric composite cable and a jumper cable in a base station and detachably mounted in a terminal box for a photoelectric hybrid cable .

According to an aspect of the present invention, there is provided a terminal box for a photoelectric hybrid cable for branching at least one photoelectric composite cable including a plurality of power line units and a plurality of optical units to a plurality of jumper cables, A plurality of jumper connecting units provided on the outer surface of the housing for detachably mounting the jumper connector of the jumper cable and each having a light terminal and a power terminal; At least one cable connection unit having a plurality of optical terminals and a plurality of power terminals for detachably mounting the cable connector of the jumper connection unit, at least one cable connection unit having a plurality of optical terminals and a plurality of power terminals for connecting the optical terminal of the jumper connection unit and the optical terminal of the cable connection unit inside 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 as a polygonal columnar shape.

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

Here, the jumper connection unit may be disposed on at least one surface of the outer surface of the housing along at least one row along the longitudinal direction of the housing.

Further, 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 connecting power unit may be detachably mounted on the power terminal of the jumper connecting unit and the power terminal of the cable connecting unit.

In this case, the optical connector of the cable connector and the cable connecting unit may be disposed at the central portion, and the power terminal may be disposed around the optical connector.

In this case, a pair of power terminals of the jumper connector of the jumper cable and the jumper connecting unit of the jumper cable are provided, two pairs of the light terminals are provided, and the two power terminals constituting the pair are spaced apart from each other, Each of the pairs of light terminals may be disposed apart from each other in a direction perpendicular to the direction in which the power terminals are spaced apart.

According to another aspect of the present invention, there is provided a hybrid cable connected to a terminal box of a mobile communication base station. The hybrid cable includes a plurality of optical units, a plurality of power units, And a cable connector having a plurality of power terminals to which end portions of the power unit are respectively connected, wherein the cable connector includes a cable provided in the terminal box, And the optical fiber cable is detachably fastened to the connection unit.

The optical connector of the cable connector provided at the end of the photoelectric hybrid cable and the cable connection unit of the terminal box may be disposed at the central portion and the power terminal may be disposed around the optical terminal.

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

In addition, according to the terminal box for a photoelectric composite cable according to the present invention, when a photoelectric composite terminal box and a photoelectric composite cable are separated from each other, a terminal box for various types of photoelectric composite cables is selected according to the base station environment, Can be improved.

In addition, according to the terminal box for a photoelectric hybrid cable according to the present invention, the connection work inside the terminal box for the photoelectric hybrid cable can be performed while minimizing the waste of the space inside the terminal box in the process of manufacturing the terminal box for the photoelectric hybrid cable , The outer shape of the terminal box for the photoelectric composite cable can be made more compact.

1 is a block diagram of a base station equipped with a terminal box for a photoelectric hybrid cable according to the present invention.
Figure 2 shows one embodiment of a photoelectric composite cable.
3 shows a terminal box for a photoelectric hybrid cable according to the present invention.
FIG. 4 is a perspective view of a jumper connector of a jumper cable mounted on a terminal box for a photoelectric hybrid cable shown in FIG. 3 and a perspective view of a jumper connecting unit to which the jumper connector of the jumper cable is mounted.
FIG. 5 illustrates a process of mounting a terminal box and a photoelectric composite cable according to the present invention, according to the present invention.
FIG. 6 illustrates a process of mounting a connection optical unit and a connection power unit inside a terminal box according to the present invention.
FIG. 7 illustrates terminal boxes for a photoelectric hybrid cable according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numerals designate like elements throughout the specification.

1 is a block diagram of a base station equipped with a terminal box 200 for a photoelectric hybrid cable according to the present invention.

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

The remaining part 10 of the base station of the existing BTS system in which the RRU 40 is separated in the base station system 1 of the RRH scheme, that is, the baseband unit (BBU), the power supply unit (PSU) And is connected to a photoelectric hybrid cable 100 including a light unit and a power line unit which are almost not used.

In the BBU (Baseband Unit) and PSU (Power Supply Unit), the communication signal is supplied to the RRU 40 through the optical unit constituting the photoelectric hybrid cable, and the power is supplied to the RRU 40 through the power line unit constituting the photoelectric hybrid cable. .

Since the RRU 40 can be installed just below the base station antenna 20 at the top of the base station Tower, the length of the coaxial line 30 for supplying the RF signal converted from the RRU 40 to the antenna 20 The attenuation amount of the signal until just before the radiation is minimized and there is no need of the TMA which has used the conventional power consumption as much as the RF signal attenuation generated when the RF signal is transmitted through the coaxial line 30 is minimized. This technical feature has become a feature of the RRH in terms of the maintenance of the base station.

1, the BBU (Baseband Unit), the PSU (Power Supply Unit) and the RRU (Remote RF Unit) are connected to the terminal box 200 for the photoelectric hybrid cable according to the present invention. ).

That is, the photoelectric hybrid cable 100 has a structure in which the optical unit and the power line unit are cabled to one another, and a portion 10 composed of a BBU (Baseband Unit) and a PSU (Power Supply Unit) The plurality of RRUs (Remote RF Unit) of the photoelectric hybrid cable can not be connected directly, and each optical unit and power line unit constituting the photoelectric hybrid cable 100 are branched from the terminal box 200 for the photoelectric hybrid cable, And connected via a jumper cable 50, respectively.

 Recently, various kinds of portable terminals have been diversified, new and old terminals having different communication systems have been coexisted and communication towers have been installed. As a result of sharing an installation tower of the antenna 20 constituting the RRH between mobile communication providers, And RRUs, which make up dozens of RRHs, have been installed, making the tower a limited space for installation and increasing the burden on the installation.

In addition, when the operator works through the terminal box, the connection operation of connecting the optical unit and the power line unit constituting the photoelectric composite cable 100 to the optical unit constituting the jumper cable 50 and the power line unit requires considerable working time Demand.

Accordingly, the terminal box 200 for a photoelectric hybrid cable connected to various RRU equipment is also minimized in size, so that space constraints placed on the tower for mounting the antenna 20 can be minimized and the connection operation can be easily performed. A terminal box is required.

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

Figure 2 shows one embodiment of a photoelectric composite cable. More specifically, FIG. 2 (a) shows a perspective view of the photoelectric composite cable taken away at multiple stages, and FIG. 2 (b) shows a cross-sectional view of the photoelectric composite cable.

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

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

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

The center line 145 is located at the center of the photoelectric hybrid cable 100 to provide resistance against repulsion or tensile force when the bending force acts on the photoelectric hybrid cable 100, 100) is prevented from breaking or breaking more than necessary, and serves to support the shrinkage of the tube due to the temperature change. Whereby damage to the optical unit 130 or the power line unit 110 can be prevented.

A plurality of optical units 130 may be arranged in the longitudinal direction of the photoelectric hybrid cable on the outer circumferential surface of the center line 145.

In addition, a protective layer 140 for protecting the optical unit 130 may be further provided outside the plurality of optical units 130.

Comparing the optical unit 130 and the power line unit 110 shows that the optical unit 130 has a smaller diameter than the power line unit 110 and the optical fiber 133 provided in the optical unit 130 is bent or broken The optical line unit 110 may be disposed on the outer circumferential surface of the protective layer 140 after the optical unit 130 is disposed on the outer circumferential surface of the center line 145 .

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, air gaps or clearances are generated between neighboring power line units. In such a configuration, the entire outer shape of the photoelectric composite cable 100 can not maintain its circular shape, and thus it is vulnerable to warping or impact acting on the outside. Accordingly, the voids in the cable core 105 can be filled with the filler 120, and the outer shape of the filler 120 can be maintained in a circular shape to have a structure capable of withstanding an external impact or the like.

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

An outer skin layer 150 is provided outside the cable core 105. The outer cover layer 150 may include a metal protective layer 151 on which a corrugation 152 is repeatedly formed so as to surround the cable core 105.

The metal protection layer 151 may be formed of a metal pipe such as aluminum in a corrugated form in which the corrugation 152A and the corrugation 152B are repeatedly formed. A method of forming the metal protection layer 151 includes the steps of supplying a plate-type metal plate together with a cable core including an optical unit and a power line unit, shaping the metal plate to wrap around the outer periphery of the cable core Then, both end portions of the metal plate abutted to each other are joined together by welding or the like to form a pipe having a predetermined diameter. And then pressed at predetermined intervals so as to form a wrinkle on the outside of the pipe.

The outer shell layer 150 provided at the outermost portion of the photoelectric hybrid cable 100 is a portion forming the outer shape of the photoelectric hybrid cable 100 and includes an optical unit 130 and a power line unit 110 ).

The outer cover layer 150 is in contact with the cable core 105 and surrounds the cable core 105 in a circular shape and has a metal protective layer 151 for protecting the cable core 105 from external impact, And an outer jacket 155 surrounding the outer jacket 151.

The outer jacket 155 may be made of a resin having a flame retardant property and being environmentally friendly. For example, the outer jacket 155 may be made of polyethylene, polypropylene, or polyvinyl chloride (PVC).

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

The nonwoven fabric tape 153 may be formed in such a manner that the tape-shaped material is horizontally or vertically extruded.

The optical unit 130 may include any type of optical fiber including an optical fiber for transmitting an optical signal. For example, the optical unit 130 may include at least one optical fiber 133 and a tube 135 < / RTI > The tube 135 may comprise, for example, polybutylene terephthalate (PBT), polypropylene, polyethylene or polyvinyl chloride. In addition, the tube 135 may be filled with filler. For example, be filled with jelly or filled with a tensile material 137, such as an aramid yarn. The tensile material 137 is excellent in tensile force and is flexible, so that the cable can be stably installed.

The optical unit 130 may be formed in various forms such as a tight buffer type or a loose tube type.

Each power line unit 110 includes a conductor 113 and an insulator 115 surrounding the conductor 113. The power line unit 110 may have a shape conforming to a standard used for general power, and the plurality of conductors 113 may be twisted together. The conductor 113 may be formed of a metal such as copper or aluminum. The insulator 115 may be formed of a polymer resin such as polyethylene, polypropylene, or polyvinyl chloride.

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

The power line unit 110 and the optical unit 130 may be interfered with each other when the power line unit 110 and the optical unit 130 are branched in the terminal box 200 and combined with the jumper cable 50 This is a major factor that increases the time and cost of constructing the terminal box 200 by lowering the work efficiency of the operator.

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

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

The present invention relates to a terminal box for a photoelectric hybrid cable for branching at least one photoelectric composite cable including a plurality of power line units and a plurality of optical units to a plurality of jumper cables, the terminal box comprising: a housing (210) A plurality of jumper connecting units 230 each having a light terminal and a power terminal for detachably mounting the jumper connector 50c of the jumper cable 50 on the outer surface of the housing 210, At least one cable connection unit 260 having a plurality of optical terminals and a plurality of power terminals for detachably mounting the cable connector 100c provided at the end of the photoelectric hybrid cable 110, A plurality of connecting optical units (not shown) for connecting the optical terminal of the jumper connecting unit 230 and the optical terminal of the cable connecting unit 260 inside the housing, And a plurality of connection power units (not shown) for connecting the power terminals of the jumper connecting unit 230 and the power terminals of the cable connection unit 260 inside the housing, .

The housing constituting the terminal box 200 for a photoelectric hybrid cable according to the present invention constitutes the outer shape of the terminal box 200, and the housing 210 may have a polygonal column shape.

A plurality of jumper connecting units 230 may be provided on at least one of the outer surfaces of the housing 210. The jumper connecting unit 230 may be detachably mounted on the jumper cable 50. [

As shown in FIG. 3, the jumper connecting unit 230 includes a plurality of jumper connecting units 230 on at least one of the outer surfaces of the polygonal column-shaped housing 210 in two rows, but the number of rows can be increased or decreased.

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

In the terminal box 200 for a photoelectric hybrid 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.

More specifically, in branching the optical unit and the power line unit constituting the photoelectric hybrid cable 100 to the plurality of jumper cables 50 via the terminal box 200, the optical unit and the power line unit in the terminal box 200, The connectors are provided in the photoelectric hybrid cable 100 and the jumper cable 50 instead of performing the connection operation of the units so that they are detachably mounted on the cable connection unit 260 and the jumper connection unit 230 of the terminal box respectively Method.

Each of the at least one cable connection unit 260 and the plurality of jumper connection units 230 includes a cable connector 100c provided at the end of the photoelectric hybrid cable 100 and a jumper cable It is necessary to have a structure corresponding to the connector 50c and a corresponding terminal.

First, the structure of the jumper connector 50c of the jumper cable 50 and the jumper connecting unit 230 provided in the terminal box 200 will be described with reference to Fig. The cable connector 100c of the photoelectric hybrid cable 100 will be described later with reference to Fig.

And a connection terminal 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. Fig.

4, when the power terminal 233 and the optical terminal 235 of the jumper connecting unit 230 are made of a male type, the power terminal 53 and the optical terminal 55 of the jumper connector 50c, May be configured as a female. Of course, it is also possible to mount male and female terminals on the contrary.

The jumper connection unit 230 and the housings 231 and 52 of the jumper connector 50c are formed with screw threads 237 and 57 which can be screwed to each other so as to stably maintain the connection state of the connection terminals have.

The jumper connecting unit 230 provided in the housing 210 of the terminal box 200 for a photoelectric hybrid cable according to the present invention and to which the jumper connector 50c of the jumper cable 50 is mounted is connected to 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 that is led into the terminal box 200 for the photoelectric composite cable have.

4, the jumper connector 50c of the jumper cable 50 and the power terminals 233 and 53 of the jumper connecting unit 230 are provided with a pair of the optical terminals 235 and 55, The two power terminals constituting the pair are arranged to be spaced apart from each other to prevent a short circuit or the like and each pair of the optical terminals constituting the two pairs is arranged in a direction perpendicular to the direction in which the power terminals are spaced apart Can be configured to be spaced apart.

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

The terminal box 200 for a photoelectric hybrid cable according to the present invention allows the at least one photoelectric hybrid cable 100 to be detachably mounted so that the connection between the terminal box and the photoelectric hybrid cable can be facilitated at the base station.

5 (a) is a perspective view of a terminal box 200 for a photoelectric hybrid cable according to another embodiment of the present invention, and FIG. 5 (b) is a side view And FIG. 5 (c) is a plan view of the cable connector 100c provided at the end portion of the photoelectric composite cable.

The terminal box 200 for a photoelectric hybrid cable shown in Fig. 5 has a structure in which 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 end of the terminal box 200 for the photoelectric hybrid cable and the cable connector 100c is mounted on the housing end of the terminal box 200 for the photoelectric hybrid cable.

5, the jumper connection unit 230 includes a light terminal 235 and a power terminal 233, and each of the light terminals 235 and the power terminal 233 Includes a light terminal 163 and a power terminal 165 provided in a cable connector 100c of a photoelectric composite cable that is led into the terminal box 200 for a photoelectric hybrid cable, a connection light unit 130 'provided inside the housing, And may be connected via a connection power unit 110 '. The connection light unit 130 'and the connection power unit 110' are described later in detail.

The optical unit and the power unit of the jumper cable 50 mounted on the jumper connection unit 230 by the connection light unit 130 'and the connection electric power unit 110' Unit. ≪ / RTI >

The terminal box 200 is installed in the base station and the jumper connector 50c of the jumper cable 50 for connection with the RRH is simply mounted on the jumper connecting unit 230 of the terminal box, The connection of the jumper cable and the photoelectric composite cable can be completed by attaching the cable connector 50c of the jumper cable to the cable connection unit 260. [

In this way, if the photoelectric composite cable and the terminal box are separately transported to the base station antenna, and the terminal box is mounted and then the jumper cable and the photoelectric composite cable are respectively connected, the branching operation of the photoelectric composite cable can be performed in a short time It is possible to simplify the work of the operator at the base station antenna.

The cable connector 100c and the cable connection unit 260 are also provided with connection terminals including a light terminal and a power terminal. When the jumper connector 50c and the jumper connection unit 230 are formed with male terminals on one side, Shaped terminal.

5, the power line unit and the optical unit constituting the jumper cable 50 and the photoelectric hybrid cable 100 can be connected to each other through a connector, The jumper connecting unit 230 provided at the different positions of the housing of the terminal box and the method for connecting the optical terminals and the power terminals provided in the cable connecting unit 260 electrically or optically inside the housing Is required.

Accordingly, the terminal box 200 according to the present invention includes a plurality of connection power units 110 'and a plurality of connection light units 130' inside the terminal box in order to interconnect the light terminals and the power terminals of each connection socket within the terminal box 200 ') Is applied.

Each of the connection power unit 110 'and the connection light unit 130' includes a power terminal 233 and a light terminal 235 of the jumper connection unit 230 provided in the housing and a power terminal (not shown) And a light source (not shown).

Accordingly, various types of terminal boxes can be combined as far as the standard of the photoelectric composite cable allows, so that various solutions can be provided according to the installation environment.

As shown in Fig. 5 (c), the optical terminal 165 and the power terminal 163 of the cable connector 100c are arranged such that the power line unit is disposed at the center portion as in the structure of the photoelectric composite cable described with reference to Fig. 2 And the power terminal 163 may be disposed around the center optical fibers 165 in correspondence with the shape of surrounding the optical unit.

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

A screw thread is formed in the housing inserting portion 211 surrounding the cable connecting unit 260 and a screw thread is formed on the inner circumferential surface of the connector cap 220 in the cable connector 100c to firmly maintain the mounting state of the connector .

The means for reinforcing the mounting state of the jumper connector 50c and the cable connector 100c mounted on the jumper connecting unit 230 and the cable connecting unit 260 may be a hook type or a separate fixing member (Or a closing member) is used.

FIG. 6 illustrates a process of mounting a connection optical unit and a connection power unit inside a terminal box according to the present invention.

5, each of the connection power unit 110 'and the connection light unit 130' is electrically connected to the power terminal 233 and the optical terminal 235 of the jumper connection unit 230 provided in the housing, The connection power unit 110 'and the connection light unit 130' are connected to the power terminal 163 and the optical terminal 165 of the jumper 165. However, the connection power unit 110 'and the connection light unit 130' May be configured in a removable patch coded form instead of being fixed to the power terminal 233 and the light terminal 235 of the connection unit 230 and the power terminal 163 and the light terminal 165 of the connector connection unit. That is, only the terminals are provided in each connection unit, and the optical connection or the power connection inside the terminal box is connected by using the connection power unit 110 'and the connection light unit 130' So that the connection inside the terminal box can be increased or decreased according to the demand or need of the terminal box.

That is, the connection light unit 130 'can 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' And can be detachably mounted on 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 light unit 130' are configured to be detachably mountable 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 hybrid cable, there is an advantage that waste of cables and the like can be minimized since it is not necessary to connect two unused jumper connection units to the cable connection unit.

FIG. 7 shows terminal boxes 200 for a photoelectric hybrid cable according to another embodiment of the present invention.

7 (a) shows an embodiment in which six jumper connecting units 230 are provided in a row in a housing of a terminal box 200 for a photoelectric hybrid cable, FIG. 7 (b) Three jumper connecting units 230 are provided in a box 200 housing a plurality of jumper connecting units 230 arranged in a line on two of the outer surfaces of the housing. FIG. 7C shows an example in which the jumper connecting unit 230 is connected to the terminal box 200 for a photoelectric hybrid cable There are two photoelectric composite cables, and 20 jumper connecting units 230 in five rows and four columns in total.

The jumper connection unit 230 for mounting the jumper cable 50 is connected to the housing of the terminal box through at least one row or more along the longitudinal direction of the housing, ≪ / RTI >

7 (a) has a total of six jumper connecting units 230 like the embodiment shown in Figs. 5 and 6, but can be arranged in a line to minimize the width of the terminal box.

As shown in Fig. 7 (b), the jumper connecting unit 230 is not necessarily provided on only 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 by the jumper cable, the jumper connection unit 230 is provided on a plurality of outer surfaces of the terminal box housing 210, .

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

A plurality of photoelectric composite cables 100a and 100b are connected to the terminal box 200 for a photoelectric hybrid cable and a plurality of the plurality of the photoelectric composite cables 100a and 100b 230 to accommodate a large-capacity base station, thereby maximizing the space efficiency of the installation space of the base station equipment.

As described above, when the photoelectric hybrid cable and the jumper cable are detachably mounted on the terminal box, it is possible to provide an optimal terminal box according to the base station environment, Even if the number of the jumper connection unit and the cable connection unit is large, if the connection optical unit and the connection power unit itself are detachable from the respective terminals as shown in FIG. 6, unnecessary cables in the terminal box minimize waste So that the competitiveness of the product can be improved.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

50: Jumper cable
100: Photoelectric composite cable
200: Terminal box for photoelectric composite cable
230: jumper connecting unit
260: Cable connection unit
110 ': Connected power unit
130 ': connection optical unit

Claims (10)

A terminal box for a photoelectric hybrid cable for branching at least one photoelectric composite cable including a plurality of power line units and a plurality of optical units to a plurality of jumper cables,
housing;
A plurality of jumper connecting units provided on an outer surface of the housing and each having a light terminal and a power terminal for detachably mounting the 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 hybrid cable;
A plurality of connecting optical units for connecting the optical terminal of the jumper connecting unit and the optical terminal of the cable connecting unit inside the housing; And
And a plurality of connection power units for connecting the power terminals of the jumper connection unit and the power terminals of the cable connection unit inside the housing. The method according to claim 1,
Wherein the housing is formed in a polygonal column shape. 3. The method of claim 2,
And the cable connection unit is provided at one end in the longitudinal direction of the housing. 3. The method of claim 2,
Wherein the jumper connecting unit is disposed on at least one surface of the outer surface of the housing along at least one row along the longitudinal direction of the housing. The method according to claim 1,
Wherein 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 according to claim 1,
Wherein the connection power unit is detachably mounted from a power terminal of the jumper connection unit and a power terminal of the cable connection unit. The method according to claim 1,
Wherein the cable connector and the optical connector of the cable connection unit are disposed at a central portion, and a power terminal is disposed around the optical terminal. The method according to claim 1,
The pair of power terminals of the jumper cable of the jumper cable and the pair of power terminals of the jumper connecting unit are provided, the two power terminals constituting the pair are spaced apart from each other, And the pair of light terminals are disposed apart from each other in a direction perpendicular to the direction in which the power terminals are spaced apart. A hybrid cable connected to and branched from a terminal box of a 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 plurality of power terminals to which ends of the power unit are respectively connected, wherein the plurality of power terminals are connected to the ends of the optical unit,
Wherein the cable connector is detachably coupled to a cable connection unit provided in the terminal box. 10. The method of claim 9,
Wherein the photoelectric composite cable has a cable connector provided at an end thereof and a light source of a cable connection unit provided at the terminal box is disposed at a central portion and a power terminal is disposed around the light source.

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