KR200348575Y1 - The Combiner or Splitter of Head-End System in HFC or CATV Network, etc. - Google Patents

Abstract

The present invention relates to a signal distribution combining device of a headend system provided in a comprehensive cable broadcasting network, a cable TV broadcasting network, an HFC network, etc., and is easily connected to one side of a signal distribution combining device which receives and separates or combines an external signal and outputs the signal. The present invention relates to a signal distribution coupling device for a headend system for a comprehensive broadcasting network, which is equipped with a detachable attenuator to simplify the operation and management of equipment.

The constitution of the present invention is provided with a housing (110) in which a signal distribution coupling module (102) with a combiner function or a splitter function of a signal is provided, and provided on one surface of the housing (110), and with an external cable (120). One or more connectors 122 that are coupled to input and output signals, and a tangent 104 electrically connecting the connectors 122 and the signal distribution coupling module 102, respectively, and one side of the signal distribution coupling module 102. And attenuated by a predetermined level by extracting a signal input to the mounting pad 106 through the mounting pad 106 and the housing 110, and input to the signal distribution coupling module 102. The attenuator 130 is carried back to the signal distribution coupling module 102.

The present invention having such a configuration can easily attach and detach the attenuator to the signal distribution coupling device to improve the work efficiency, it is possible to perform network design and management at a low cost.

Description

Signal Distribution Combiner of Head End System for Integrated Broadcasting Network {The Combiner or Splitter of Head-End System in HFC or CATV Network, etc.}

The present invention relates to a signal distribution combining device of a headend system for a general broadcasting network, and more particularly, an attenuator that can be easily detached to one side of a signal distribution combining device that receives an external signal and separates or combines the output. The present invention relates to a signal distribution combining device of a headend system for a comprehensive broadcasting network, which enables a user to easily operate and manage equipment.

In general, a comprehensive cable broadcasting network, a cable TV broadcasting network, and a hybrid fiber coaxial (HFC) network are composed of a fiber optic cable and a coaxial cable combined with each other to transport a wideband content such as video, voice, and data. have.

In general cable broadcasting network, cable TV broadcasting network, and HFC network, a broadcasting area is divided into cells of several units, and then a fiber optic cable is used from a broadcasting station to a corresponding unit cell, and a coaxial cable is transmitted from the corresponding unit cell to each subscriber. To connect.

In addition, a plurality of signal relays are installed in the integrated cable broadcasting network, cable TV broadcasting network, and HFC network, and are connected to nodes close to each subscriber, and such signal relay is called a head-end system. do.

On the other hand, the head-end system has a splitter function for distributing one received signal, specifically, an RF (Radio Frequency) signal through a predetermined signal conversion process and outputting the signal as a plurality of signals, or a plurality of received signals. A signal distribution combiner is installed to perform a combiner function to combine the signals and output them as a single signal. In FIG. 1, an example of the signal distribution combiner 1 is illustrated.

As shown in the figure, the signal distribution coupling device 1 includes a housing 10 having a hollow inside and an open top, a signal distribution coupling module 12 installed inside the housing 10, and the housing. A plurality of ones are installed on one surface of the connector 10 and are electrically connected to the signal distribution coupling module 12 and at the same time, a connector 16 coupled to an external signal transmission / reception cable 14 and the other side of the housing 10. The cover 20 is coupled to the test connector 18 and the upper surface of the housing 10 formed in the.

The signal distribution coupling module 12 combines or distributes a plurality of signals received through the connector 16 into one, and the connector 16 and the signal distribution coupling module 12 have high electrical conductivity. It is connected by the tangent 13.

On the other hand, one side of the signal distribution coupling module 12 is provided with a cable 19 for signal monitoring, the cable 19 is the cable mounting plate 15 in electrical contact with the signal distribution coupling module 12 The cable 19 is connected to the test connector 18.

Accordingly, when an external test jack (not shown) is inserted into the test connector 18, the signal flow on the signal distribution coupling module 12 may be monitored.

Referring to the operation process of the conventional signal distribution combining device (1) configured as described above separated into a combiner function and a splitter function as follows.

First, when the signal distribution coupling module 12 which performs a splitter function is built into the housing 10, the signal is input into the housing 10 through any one of the connectors 16. The signal is divided into a plurality of signals through the signal distribution coupling module 12, and the divided signals are outputted to the outside through the other connectors except for the connector to which the signal is input.

On the other hand, when the signal distribution coupling module 12, which performs a combiner function, is built into the housing 10, a signal is transmitted through the other connectors except at least one of the connectors 16. When input to the inside of the) is combined into a signal through the signal distribution coupling module 12, this combined signal is output to the outside through the connector except the connector of the connector 16 is input again .

Therefore, the signal distribution combining device 1 separates one signal into several according to the characteristics of the signal distribution combining module 12 embedded in the housing 10, or conversely, combines multiple signals into one signal. It can perform a function.

In addition, the signal characteristics input into the housing 10 may be extracted through the test connector 18 to monitor the signal distribution and coupling of the signal distribution coupling device 1.

However, the signal distribution coupling device 1 should attenuate the input signal to some extent when the level of the signal input into the housing 10 is higher than an appropriate value. For this purpose, the connector 16 and the connector ( A separate attenuator 22 was mounted between the cables 14 coupled to 16).

At this time, the attenuator 22 selects and mounts a suitable one for the level value of the signal which is normally separated by 1 to 20 dB according to the attenuation width of the signal.

Therefore, the user separates each of the cables 14 coupled to the connector 16 to mount the attenuator 22, and then finds an attenuator 22 suitable for the attenuation value of the corresponding signal level. And a cable 14 to the attenuator 22 was used again.

However, such a conventional attenuator 22 detachment process was very cumbersome, and the attenuator 22 had to be purchased and used separately from the signal distribution coupling device 1, thereby increasing the user's purchase cost.

In other words, when the attenuator 22 is mounted on the connector 16, the user has to repeatedly remove and detach the cable 14 and then rejoin the cable, thus causing excessive work force and time.

In addition, in order to check whether there is an abnormality of the signal transmitted through the cable 16, the attenuator 22 and the cable 16 is separated, and then the cable 16 is directly coupled to the connector 14 to check for abnormality. Since it should be checked, this also had to be cumbersome, and in addition, the attenuator 22 was exposed to the outside, which also caused a problem of electromagnetic waves.

In addition, frequent disconnection of the cable 14 and the connector 16 may cause a loss of contact between the cable 14 and the connector 16 and cause signal loss.

The present invention has been devised in view of the above-mentioned conventional problems, so that the attenuator mounted on the signal distribution coupling device can be easily detached to one side of the housing without mounting the attenuator on the connector, so that the installation and replacement of the attenuator can be performed. The purpose of the present invention is to provide a signal distribution combining device of a headend system for a general broadcasting network that can be easily performed and does not need to separate a cable from a connector through which signals are input and output, thereby preventing signal loss due to poor contact. have.

In addition, the present invention is configured to package the signal distribution combiner and attenuator as a package in order to improve the inconvenience of having to separately purchase the signal distribution combiner and the attenuator as in the prior art, thereby preventing user's separate expense and efficient management and operation of the equipment. An object of the present invention is to provide a signal distribution combining device for a headend system for a comprehensive broadcasting network.

1 is a perspective view showing a conventional signal distribution combining device

Figure 2 is a perspective view showing a signal distribution coupling device of the present invention

3 is a perspective view showing another embodiment of the present invention

Figure 4 is a perspective view showing another embodiment of the present invention

Explanation of symbols on the main parts of the drawings

100: signal distribution combining unit 102: signal distribution combining module

106: mounting pad 110: housing

112: gasket 116: through hole

120: cable 122: connector

130: attenuator 140: front cover

142: hinge portion 150: test hole

The present invention for achieving the above object is a combiner function for receiving a plurality of signals from the outside and combining them into one, or a splitter function for separating and outputting one received signal into a plurality of heads. In the signal distribution coupling device of the end system, a housing having a signal distribution coupling module for coupling or separating the input signal, and one or more connectors provided on one surface of the housing, coupled to an external cable to input and output signals; A connecting pad electrically connected to the connector and the signal distribution coupling module, and installed on one side of the signal distribution coupling module, and a mounting pad having a plurality of insertion holes formed on one surface thereof while being electrically connected to the signal distribution coupling module; Is inserted into the insertion hole of the mounting pad through the one surface of the housing, the signal Technical features of the present invention include an attenuator for extracting a signal input to the double combining module, attenuating a predetermined level, and then returning the signal to the signal sharing combining module.

The damper is characterized in that the coupling pin is inserted into the insertion hole of the mounting pad protrudes on one side, the number corresponding to the connector is provided.

One surface of the housing provided with the attenuator is provided with a front cover for protecting the attenuator and shielding electromagnetic waves.

The front cover is coupled to the housing through a hinge portion and the other side is fixed to the housing through a bolt member so that the front cover can be easily opened and closed on the housing.

One or more gaskets for shielding electromagnetic waves may be provided on one surface of the housing.

The gasket is made of an insulating coated silicone rubber material.

One surface of the housing is connected to the mounting pad, characterized in that the test hole is formed to monitor the signal flow in the signal distribution coupling module.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the present invention provides a head having a combiner function for receiving a plurality of signals from the outside and combining them into one, or a splitter function for separating and outputting one received signal into a plurality. In the signal distribution coupling device 100 of the end system, a housing 110 having a signal distribution coupling module 102 for coupling or separating an input signal is provided, and an external cable provided on one surface of the housing 110. One or more connectors 122 coupled to 120 to input and output signals, a tangent 104 electrically connecting the connectors 122 and the signal distribution coupling module 102, and the signal distribution coupling module ( 102 is installed on one side of the mounting pad 106 and a plurality of insertion holes 106a perforated on one surface while electrically connected to the signal distribution coupling module 102, and penetrates one surface of the housing 110. remind The attenuator 130 is inserted into the insertion hole 106a of the sub pad 106 and extracts a signal inputted to the signal distribution combining module 102, attenuates a predetermined level, and returns the signal to the signal distribution combining module 102. Consists of including.

The housing 110 may be formed in a shape of a housing having an open top and a hollow inside, and a cover 114 may be coupled to the upper side of the housing 110 through a bolt member 114a or the like.

The signal distribution coupling module 102 includes a PCB board on which various elements are mounted so as to couple or separate a signal input through the connector 122.

In addition, at least one through hole 116 is formed in one surface of the housing 110 to allow the attenuator 130 to penetrate, and the through hole 116 is preferably formed at a position opposite to the connector 122. do.

In addition, the attenuator 130 has one or more coupling pins 130a inserted into the insertion hole 106a of the mounting pad 106 protruding from one side thereof, and the attenuator 130 is provided through one of the coupling pins 130a. When the signal flows into the 130, the signal is attenuated by a predetermined level and then returned to the mounting pad 106 through another coupling pin 130a.

The attenuator 130 is preferably to be mounted in a number corresponding to the connector 122.

In addition, one surface of the housing 110 on the side where the attenuator 130 is provided is provided with a front cover 140 for protecting the attenuator 130 and shielding electromagnetic waves, wherein the front cover 140 includes the housing ( One side is coupled to the housing 110 through the hinge portion 142 and the other side is coupled to the housing 110 through the bolt member 144 so as to be easily opened and closed on the 110.

The signal distribution coupling device 100 of the present invention configured as described above can be easily attached to or detached from one surface of the housing 110 so that the maintenance and management of the signal distribution coupling device 100 becomes very simple.

That is, the attenuator 130 provided with the number of connectors 122 can be easily attached or detached to the mounting pad 106 through the through-hole 116 formed at the position opposite to the connector 122, so that the user Is to simply attenuate the signal input through the connector 122.

Therefore, the signal input through the connector 122 flows into the corresponding attenuator 130 through the signal distribution coupling module 102, is attenuated by the inherent attenuation width of the mounted attenuator 130, and then again the signal. It is output to the connector 122 via the distribution coupling module 102.

At this time, the signal distribution combining device 100 is divided into a single signal introduced into a plurality of signals according to the characteristics of the signal distribution coupling module 102 is mounted, and then outputs a splitter function or combined the input signal into a single signal You can execute the combiner function.

In addition, in order to attach and detach the attenuator 130, the front cover 140 must be opened, and the opening of the front cover 140 is performed by removing the bolt member 144 and then front the hinge part 142. The cover 140 may be rotated.

In addition, when checking whether a signal is transmitted to each cable 120 coupled to the connector 122 without any abnormality, the attenuator 130 in charge of the connector 122 is removed one by one to remove the abnormal cable 120 ) And the attenuator 130 can be selected.

In the accompanying drawings, FIG. 3 illustrates another embodiment of the present invention, in which a test hole 150 is formed on one surface of the housing 110 to monitor the flow of a signal.

That is, the test hole 150 penetrates one surface of the housing 110 and is electrically connected to the mounting pad 106, and a part of the signal input through the connector 122 is separated from the test hole. It is output to the outside through 150.

Therefore, when the user opens the front cover 140 and inserts a test jack (not shown), etc., not shown in the drawing into the test hole 150, the user monitors the signal state input through the connector 122. You can do it.

In addition, a gasket 112 for shielding electromagnetic waves is mounted on an inner surface of the front cover 140, and a protrusion 112a which contacts and seals the gasket 112 on one surface of the housing 110 corresponding thereto. ) Is formed.

Here, the material of the gasket 112 is not particularly limited, but preferably made of an insulating coated silicone rubber material.

In addition, as shown in FIG. 2 and FIG. 3, the signal distribution coupling device 100 of the present invention separates the signal input through one connector through the signal distribution coupling module 102 through four connectors. On the contrary, it can be implemented in a four-port manner provided with five connectors 122 so as to combine the signals input through the four connectors and output them to one connector, as shown in FIG. Likewise, it may be implemented in an 8-port method, and other implementations are possible.

As shown in FIG. 4, in the eight-port method, when the signal splitting apparatus 100 performs a splitter function, one connector and a signal splitting module are inputted from an external cable 120. Eight connectors for outputting a signal separated through 102 are provided. On the other hand, when the signal distribution coupling device 100 performs a combiner function, the eight connectors and the signal distribution coupling module to which a signal is input are provided. A total of nine connectors 122 including one connector for outputting a signal coupled through the 102 are provided on one side of the housing 110.

The eight-port signal distribution coupling device 100 may include a signal distribution coupling module 102 that is separated into left, right, or up and down and electrically connected to each other inside the housing 110 as necessary, and has a large capacity. One signal distribution combining module 102 capable of converting signals may be used.

In addition, the eight-port signal distribution coupling device 100 is also configured to be mounted on one surface of the housing as many attenuators 130 as the number of connectors 122.

As described above, the present invention can easily attach and detach the attenuator to the signal distribution coupling device, thereby improving work efficiency and performing network design and management at low cost.

In addition, as there is no need to separate the connector and the cable to attach and detach the attenuator as in the prior art, the contact loss between the connector and the cable is reduced to reduce the signal loss, and the attenuator is composed of the signal distribution coupling device and the package. It can reduce, and consumers have the advantage of reducing the purchase cost.

In addition, by attaching or detaching each attenuator, it is possible to check whether there is an abnormality in the signal transmitted or received through the corresponding connector, which is convenient during product testing, and also has the effect of electromagnetic shielding.

Claims (7)

Combined to receive a plurality of signals from the outside and combine them into one, or to the signal distribution combiner device 100 of the head end system having a splitter function to separate and output a single signal received after multiple input In A housing (110) in which a signal distribution combining module (102) for combining or separating an input signal; One or more connectors 122 provided on one surface of the housing 110 and coupled to an external cable 120 to input and output signals; A tangent 104 electrically connecting the connector 122 and the signal distribution coupling module 102 to each other; A mounting pad 106 installed on one side of the signal distribution coupling module 102 and having a plurality of insertion holes 106a drilled on one surface thereof while being electrically connected to the signal distribution coupling module 102; It penetrates through one surface of the housing 110 and is inserted into the insertion hole 106a of the mounting pad 106. The signal input to the signal distribution coupling module 102 is extracted, attenuated by a predetermined level, and then signal distribution coupling. Attenuator (130) for conveying to the module 102; Signal distribution combining device of the head end system for a comprehensive broadcasting network comprising a. The method of claim 1, The attenuator 130 has a coupling pin 130a which is inserted into the insertion hole 106a of the mounting pad 106 protrudes on one side and is provided with a number corresponding to the connector 122. Signal distribution combining device for headend system for broadcasting network. The method of claim 1, Signal distribution of the head end system for a comprehensive broadcasting network, characterized in that the front cover 140 for protecting the attenuator 130 and shielding electromagnetic waves is provided on one surface of the housing 110 on the side where the attenuator 130 is provided. Coupling device. The method of claim 3, The front cover 140 is coupled to the housing 110 through the hinge portion 142 and the other side to the housing 110 through the bolt member 144 so that the front cover 140 can be easily opened and closed on the housing 110. Signal distribution combining device of the head end system for a comprehensive broadcasting network, characterized in that the fixed. The method of claim 1, At least one gasket (112) for shielding electromagnetic waves is provided on one surface of the housing (110). The method of claim 5, The gasket 112 is a signal distribution coupling device of a head end system for a comprehensive broadcasting network, characterized in that the insulating coating made of silicon rubber material. The method of claim 1, One end of the housing 110 is connected to the mounting pad 106, the head end system for a comprehensive broadcasting network, characterized in that the test hole 150 is formed to monitor the signal flow in the signal distribution coupling module 102 Signal distribution combining device.