JP6884611B2 - Broadcast relay device - Google Patents

Description

The embodiment relates to a broadcast relay device.

A broadcast relay device that relays broadcast waves is known. The broadcast relay device is installed in the broadcast relay station and relays each broadcast wave assigned to each TV station. Such a broadcast relay device is provided with a plurality of modules for each TV station company to relay its own broadcast wave, and is fixed to a rack or the like for each company and then connected to an external device or the like by a cable.

Japanese Unexamined Patent Publication No. 2005-26388

In the above-mentioned broadcast relay device, each TV station company fixed each module to its own rack and connected it to an external device with a cable, so there is a limit to efficient use of the space in the rack, and as a result. There is a problem that it is difficult to miniaturize the broadcast relay device.

In order to solve the above-mentioned problems, the broadcast relay device of the embodiment includes a plurality of frequency conversion modules and a connection portion. The plurality of frequency conversion modules have a power supply connector, a reference signal connector, and a monitoring connector on one side, and convert the frequency of the broadcast wave signal. The power connector receives power. The reference signal connector receives a reference signal for sampling the signal of the broadcast wave to be relayed. The monitoring connector outputs monitoring information for monitoring its own status. The connection portion has an external power supply connector, an external reference signal connector, and an external monitoring connector on one side, and the one side and the other side of the plurality of frequency conversion modules are provided so as to face each other. The external power connector receives the power from the outside. The external reference signal connector receives the reference signal from the outside. The external monitoring connector outputs the monitoring information to the outside. The connecting portion has a first connecting member, a second connecting member, and a third connecting member provided on the other side. The first connection member connects the external power supply connector to the power supply connector provided in each of the plurality of frequency conversion modules. The second connection member connects the external reference signal connector to the reference signal connector provided in each of the plurality of frequency conversion modules. The third connection member connects the external monitoring connector to the monitoring connector provided in each of the plurality of frequency conversion modules.

It is a perspective view which shows the whole structure of the broadcast relay apparatus of 1st Embodiment. It is a block diagram which shows the structure of the electric system of a broadcast relay device. It is a front perspective view of the reception conversion unit. It is a rear perspective view of the reception conversion unit. It is a figure which shows an example of the front surface of a reception conversion module. It is a figure which shows an example of the rear surface of a reception conversion module. It is a figure which shows an example of the rear surface of the reception conversion unit with the connection part disconnected. It is a figure which shows an example of the front surface of a connection part. It is a block diagram which shows the structure of the electric system of the broadcast relay apparatus of 2nd Embodiment. It is a block diagram which shows the structure of the electric system of the broadcast relay apparatus of 3rd Embodiment. It is a figure which shows an example of the front surface of the DCDC module of 4th Embodiment.

Similar components are included in the following exemplary embodiments and modifications. Therefore, in the following, similar components are given a common reference numeral, and duplicate explanations are partially omitted. The portion included in the embodiment or the modification can be configured by replacing the corresponding portion of the other embodiment or the modification. Further, the configuration and position of the portion included in the embodiment and the modified example are the same as those of the other embodiments and the modified example unless otherwise specified.

<First Embodiment>
FIG. 1 is a perspective view showing the overall configuration of the broadcast relay device 10 of the first embodiment. The front-back, left-right, up-down directions indicated by arrows in FIG. 1 are the front-back, left-right, up-down directions of the broadcast relay device 10. The broadcast relay device 10 relays a plurality of (for example, N) broadcast waves.

The broadcast relay device 10 switches between the storage shelf 12, the distribution unit 14, the reception conversion unit 16, the multipath unit 18, the IF delay unit 20, the transmission conversion unit 22, and the PA (Power Amplifier) unit 24. A unit 26 and a control unit 28 are provided. The arrangement of the distribution unit 14, the reception conversion unit 16, the multipath unit 18, the IF delay unit 20, the transmission conversion unit 22, the PA unit 24, the switching unit 26, and the control unit 28 may be appropriately changed.

The storage shelf 12 is, for example, a hollow rectangular parallelepiped rack having a height of 19 inches. The storage shelf 12 stores and holds the distribution unit 14, the reception conversion unit 16, the multipath unit 18, the IF delay unit 20, the transmission conversion unit 22, the PA unit 24, the switching unit 26, and the control unit 28.

The distribution unit 14 has a plurality of (for example, N) distributors 30.

The reception conversion unit 16 has a plurality of (for example, 2N) reception conversion modules 32 and a DCDC module 34.

The multipath unit 18 has a plurality of (for example, 2N) multipath modules 36.

The IF delay unit 20 has a plurality of (for example, 2N) IF delay modules 38.

The transmission conversion unit 22 includes a plurality of (for example, 2N) transmission conversion modules 40 and a DCDC module 42.

The PA unit 24 has a plurality of (for example, 2N) PA modules 44.

The switching unit 26 has a plurality of (for example, N) switching units 46.

The control unit 28 has a plurality of (for example, N) control units 48.

FIG. 2 is a block diagram showing the configuration of the electrical system of the broadcast relay device 10. As shown in FIG. 2, inside the broadcast relay device 10, one distributor 30, one switching unit 46, and one control unit 48, a reception conversion module 32, a multi-pass module 36, an IF delay module 38, and a transmission conversion Two modules 40 and two PA modules 44 are assigned to each broadcast wave (one wave), for a total of one set. Of these sets, one is used as the working system and the other is used as the backup system. In FIG. 2, the active system and the spare system are each shown by a thick frame with a long and short dash line. Since the functions of the reception conversion module 32, the multipath module 36, the IF delay module 38, the transmission conversion module 40, and the PA module 44 are the same in the working system and the spare system, the description of the spare system will be omitted. The broadcast relay device 10 as a whole contains N waves (N sets) of such sets including the working system and the backup system.

The distributor 30 uses a digital RF (Radio Frequency-: radio frequency) broadcast wave signal (hereinafter, broadcast wave signal) corresponding to the broadcast wave received by the receiving antenna as a spare with the reception conversion module 32 of the working system. It is distributed to the reception conversion module 32 of the system and output.

The reception conversion module 32 receives DC power (for example, 48V) for driving the reception conversion module 32 and a reference signal. The reference signal is a signal for sampling a relay broadcast wave signal, and has, for example, a predetermined sampling frequency (for example, 10 MHz) according to the period of the digital broadcast wave. Further, the reception conversion module 32 outputs monitoring information (also referred to as log information) such as an item in which an abnormality has occurred and a time in which the abnormality has occurred. The reception conversion module 32 is an example of a frequency conversion module, has a function of converting the frequency of the broadcast wave signal, and sets the frequency of the RF broadcast wave signal received from the distributor 30 to IF (Intermediate Frequency). ) Is converted to the frequency of the broadcast wave signal and output to the multi-pass module 36.

The DCDC module 34 is an example of a power management unit, and manages power to a plurality of reception conversion modules 32.

The multipath module 36 has a multipath equivalent circuit, compensates for the distortion of the broadcast wave signal caused by the multipath, and outputs the distortion-compensated broadcast wave signal to the IF delay module 38.

The IF delay module 38 delays the relay wave signal by a predetermined delay time (for example, a guard interval of about 10 ms) and outputs it to the transmission conversion module 40 in order to suppress multipath interference.

The transmission conversion module 40 receives DC power (for example, 48V) for driving the transmission conversion module 40 and a reference signal for sampling a broadcast wave signal, and monitors items in which an abnormality has occurred, the time of occurrence, and the like. Output information. The transmission conversion module 40 is another example of the frequency conversion module, has a function of converting the frequency of the broadcast wave signal, receives the IF broadcast wave signal from the IF delay module 38, and receives the IF broadcast wave signal as RF. The frequency is converted into the signal of the above and output to the PA module 44.

The DCDC module 42 is another example of the power management unit, and manages the power to a plurality of transmission conversion modules 40.

The PA module 44 amplifies the power of the RF broadcast wave signal and outputs it to the switching unit 46.

The switching unit 46 acquires a broadcast wave signal from the PA module 44 of the active system and the spare system, and switches between the active system and the spare system based on the switching signal from the control unit 48 to switch between the active system and the spare system. Output one of the broadcast wave signals to the transmitting antenna.

The control unit 48 controls the switching unit 46 based on the states of the active system and the standby system to switch between the broadcast wave signal from the active system and the broadcast wave signal from the standby system. For example, when the active system is being maintained, the control unit 48 uses the backup system to transmit the broadcast wave signal from the transmitting antenna.

FIG. 3 is a front perspective view of the reception conversion unit 16. FIG. 4 is a rear perspective view of the reception conversion unit 16. As shown in FIGS. 3 and 4, the reception conversion unit 16 further includes a frame body 50 and a connecting portion 52.

The frame 50 is formed in a hollow rectangular parallelepiped shape with the front and rear surfaces open and covers the upper and lower surfaces and the left and right side surfaces of a set of N reception conversion modules 32 and DCDC modules 34, and moves the reception conversion unit 16 in the front-rear direction. Support as much as possible.

The connecting portion 52 is supported by the frame body 50 and arranged on the rear surface of the frame body 50 to close the rear surface of the frame body 50, and the front side (= the example of the other side) of the connecting portion 52 is a plurality of reception conversion modules 32. And faces the rear surface (= example of one surface) of the DCDC module 34. The connection portion 52 includes a wiring board 54, an external power supply connector 56, an external reference signal connector 58, and an external monitoring connector 60. The external power supply connector 56, the external reference signal connector 58, and the external monitoring connector 60 are provided on the rear side (= one side example) of the connection portion 52.

The wiring board 54 is, for example, a plate-shaped member, and is held by the frame body 50 so as to be slidable in the horizontal direction or the vertical direction and to be removable. The wiring board 54 holds the external power supply connector 56, the external reference signal connector 58, and the external monitoring connector 60 on the rear surface.

The external power connector 56 is connected to an external power source and receives external power (for example, 48 V DC power).

The external reference signal connector 58 is connected to an external signal generator and receives a reference signal having a sampling frequency (for example, 10 MHz).

The external monitoring connector 60 is connected to a monitoring device such as an external computer, and outputs the monitoring information of the reception conversion module 32 to the outside (for example, the monitoring device).

FIG. 5 is a diagram showing an example of the front surface of the reception conversion module 32. As shown in FIG. 5, on the front surface (an example of the other surface) of the reception conversion module 32, a switch 61 (an example of an operation unit), a reset button 62 (another example of an operation unit), and an RF signal connector 64 , Two IF signal connectors 66, 66, a monitor connector 68, and display units 70a, 70b, 70c, and 70d are provided. The switch 61, the reset button 62, the RF signal connector 64, the IF signal connector 66, the monitor connector 68, and the display units 70a, 70b, 70c, and 70d are provided on the front surfaces of the plurality of reception conversion modules 32, respectively.

The switch 61 accepts an operation of switching the reception conversion module 32 on and off.

The reset button 62 is a reset switch of the phase-locked loop, and accepts an operation of resetting the phase-locked circuit in the receiving conversion module 32 being driven.

The RF signal connector 64 is connected to the distributor 30 and receives the RF broadcast wave signal output by the distributor 30.

The IF signal connector 66 is connected to the multipath module 36 and outputs a broadcast wave signal converted from RF to IF to the multipath module 36. The number of IF signal connectors 66 may be changed as appropriate.

The display units 70a, 70b, 70c, and 70d are light emitting devices such as LEDs (Light Emitting Diodes) and display the state of the reception conversion module 32. For example, the display unit 70a indicates the ON state of the reception conversion module 32 by lighting. The display units 70b, 70c, and 70d indicate the INDET state, the PLL state, and the OUTDET state of the reception conversion module 32, respectively. Note that INDET means input detector, which detects normality / abnormality of the input level to the reception conversion module 32, issues an alarm if it is abnormal, and connects in front of the reception conversion module 32. Notify the abnormality of the device. The PLL is a phase-locked loop that matches the frequency of the input signal or reference frequency with the output signal, and the PLL state indicates the locked state of the phase-locked loop and lights up in red when unlocked. OUTDET means output detector, detects normality / abnormality of the output level from the reception conversion module 32, issues an alarm if it is abnormal, and notifies the abnormality in the reception conversion module 32. ..

FIG. 6 is a diagram showing an example of the rear surface of the reception conversion module 32. As shown in FIG. 6, a module-side power supply connector 72, a module-side reference signal connector 74, and a module-side monitoring connector 76 are provided on the rear surface of the reception conversion module 32.

The module-side power connector 72 receives power from the external power connector 56 connected via the DCDC module 34.

The module-side reference signal connector 74 is connected to the external reference signal connector 58 and receives a reference signal from the external reference signal connector 58.

The module-side monitoring connector 76 monitors the state of itself (= reception conversion module 32 provided with the module-side monitoring connector 76) received from the external monitoring connector 60 connected via the external monitoring connector 60. Output the monitoring information to the outside (for example, a monitoring device).

FIG. 7 is a diagram showing an example of the rear surface of the reception conversion unit 16 with the connection portion 52 disconnected. As shown in FIG. 7, a module-side power input connector 78 and a module-side power output connector 80 are provided on the rear surface of the DCDC module 34.

The module-side power input connector 78 is connected to the external power connector 56, and outputs the power received from the external power connector 56 to the internal circuit of the DCDC module 34.

The module-side power output connector 80 is connected to the internal connector of the DCDC module 34, and the DCDC module 34 outputs the stabilized power to each reception conversion module 32.

FIG. 8 is a diagram showing an example of the front surface of the connecting portion 52. As shown in FIG. 8, the wiring board 54 of the connection portion 52 includes a board main body 92, a power supply wiring 94a which is a part of the first connection member, and a signal wiring 94b which is a part of the second connection member. It has a monitoring wiring 94c that is a part of the third connecting member. The connection portion 52 includes a board-side power input connector 82, a board-side power output connector 84, a plurality of (for example, 2N) module power connectors 86 that are a part of the first connection member, and a second connection member. It further has a plurality of (for example, 2N) module reference signal connectors 88 that are a part of the third connection member, and a plurality of (for example, 2N) module monitoring connectors 90 that are a part of the third connection member.

The substrate body 92 is an insulating plate member (for example, a glass epoxy plate) and holds connectors 82, 84, 86, 88, 90, and wirings 94a, 94b, 94c. The power supply wiring 94a is branched, and one board-side power supply output connector 84 is connected to a plurality of module power supply connectors 86. The signal wiring 94b is branched, and one external reference signal connector 58 is connected to a plurality of module reference signal connectors 88. The monitoring wiring 94c is branched, and one external monitoring connector 60 is connected to a plurality of module monitoring connectors 90.

The board-side power input connector 82 is provided in front of the external power supply connector 56, is connected to the external power supply connector 56, and is arranged at a position facing the module-side power input connector 78. Therefore, when the DCDC module 34 is installed at a predetermined position in the frame 50, the board-side power input connector 82 is connected to the module-side power input connector 78, and the power received from the external power connector 56 is supplied to the module. It is supplied to the DCDC module 34 via the side power input connector 78.

The board-side power output connector 84 is arranged at a position facing the module-side power output connector 80. Therefore, when the DCDC module 34 is installed at a predetermined position in the frame body 50, the board-side power output connector 84 is connected to the module-side power output connector 80, and a plurality of modules are connected via the power supply wiring 94a. It is connected to the power connector 86.

The plurality of module power supply connectors 86 are arranged in a straight line along the left-right direction (that is, the horizontal direction), and are arranged at positions facing any of the plurality of module-side power supply connectors 72. Therefore, when the plurality of reception conversion modules 32 are installed at predetermined positions in the frame body 50, each of the plurality of module power supply connectors 86 is connected to any of the plurality of module side power supply connectors 72, so that the power supply is supplied. The external power connector 56 is connected to the module-side power connector 72 provided in each of the plurality of reception conversion modules 32 via the wiring 94a. As a result, the module power supply connector 86 receives the external power received by the external power supply connector 56 via the power supply wiring 94a via the DCDC module 34 and supplies the power to the internal circuit of the reception conversion module 32. ..

The plurality of module reference signal connectors 88 are arranged in a straight line along the left-right direction (that is, the horizontal direction), and are connected to the external reference signal connector 58 via the signal wiring 94b. Since each of the reference signal connectors 88 for the plurality of modules is arranged at a position facing any of the reference signal connectors 74 on the module side, the plurality of reception conversion modules 32 are installed at predetermined positions in the frame 50. Then, it is connected to any one of the plurality of module-side reference signal connectors 74. As a result, the plurality of module reference signal connectors 88 connect the external reference signal connector 58 to the module-side reference signal connector 74 provided in each of the plurality of reception conversion modules 32 via the signal wiring 94b. The reference signal received from the external reference signal connector 58 is supplied to the internal circuit of the reception conversion module 32.

The plurality of module monitoring connectors 90 are arranged in a straight line along the left-right direction (that is, the horizontal direction), and are connected to the external monitoring connector 60 via the monitoring wiring 94c. Since each of the plurality of module monitoring connectors 90 is arranged at a position facing any of the plurality of module-side monitoring connectors 76, the plurality of reception conversion modules 32 are installed at predetermined positions in the frame 50. Then, it is connected to any one of the plurality of module-side monitoring connectors 76. As a result, the plurality of module monitoring connectors 90 connect the external monitoring connector 60 to the module-side monitoring connector 76 provided in each of the plurality of reception conversion modules 32 via the monitoring wiring 94c. , The monitoring information generated by the reception conversion module 32 is acquired from the module-side monitoring connector 76 and output to an external monitoring device via the external monitoring connector 60.

Next, the operation of the reception conversion unit 16 will be described. In the reception conversion unit 16, one external power supply connector 56 supplies the received power to each reception conversion module 32 via the power supply connectors 86 for a plurality of modules. As a result, the reception conversion module 32 is activated when the switch 61 is turned on.

The plurality of reception conversion modules 32 receive a reference signal from one external reference signal connector 58 via the reference signal connector 88 for each module, sample the broadcast wave signal at the sampling frequency of the reference signal, and monitor it. Output from the connector 68.

The plurality of reception conversion modules 32 generate monitoring information and transmit the monitoring information output from the monitoring connectors 90 for each module from one external monitoring connector 60 to an external monitoring device.

It is preferable that the connectors 82, 84, 86, 88 and 90 can be easily inserted and removed (for example, a plug-in structure) from the connectors 78, 80, 72, 74 and 76. For example, the connectors 78, 80, 72, 74, 76 are simply inserted into the connectors 82, 84, 86, 88, 90 from the front, and the connectors 78, 80, 72, 74, 76 are inserted into the connectors 82, 84, 86, It is preferably attached to 88 and 90 and electrically connected. Further, while connected to each other, the connectors 78, 80, 72, 74, 76 are simply pulled backwards, and the connectors 78, 80, 72, 74, 76 are pulled from the connectors 82, 84, 86, 88, 90. It is preferably unplugged and the electrical connection is released.

As described above, in the broadcast relay device 10, the connectors 56, 58, 60 are connected to the plurality of connectors 72, 74, 76 via the connectors 86, 88, 90 and the wirings 94a, 94b, 94c. As a result, compared to the case where the connectors 72, 74, and 76 are connected to an external device or the like with a cable or the like, the broadcast relay device 10 can reduce the number of cables, so that the device can be miniaturized. Further, in the broadcast relay device 10, since the connections from the connectors 56, 58, 60 to the external device can be combined into one cable, the surroundings of the broadcast relay device 10 can be arranged.

In the broadcast relay device 10, since a plurality of reception conversion modules 32 can be installed in one frame 50, the occupied space can be reduced and the occupied space can be reduced as compared with the case where the reception conversion modules 32 are installed for each company. Racks and the like can be reduced. As a result, the broadcast relay device 10 can be miniaturized.

The broadcast relay device 10 has a structure in which the connectors 78, 80, 72, 74, 76 and the connectors 82, 84, 86, 88, 90 can be easily inserted and removed, so that the reception conversion module 32 can be easily inserted and removed without removing it from the rack or the like. Can be easily replaced. As a result, the broadcast relay device 10 can easily convert the reception conversion module 32 during the suspension of broadcasting or the like.

Since the broadcast relay device 10 has the DCDC module 34, it is possible to supply power to all broadcast waves (that is, all companies) in common, and it is also possible to supply power to each broadcast wave (that is, each company). .. For example, in the broadcast relay device 10, the power supply can be shared by connecting the DCDC module 34 and the reception conversion module 32. On the other hand, in the broadcast relay device 10, by connecting the external power supply connector 56 and the reception conversion module 32 without going through the DCDC module 34, the power supply can be shared for each broadcast wave. Further, in the broadcast relay device 10, a part of the reception conversion module 32 is connected to the DCDC module 34 to share the power supply, and the remaining reception conversion module 32 and the external power supply connector 56 are connected to receive the remaining reception. The conversion module 32 can have a common power supply for each broadcast wave.

<Second Embodiment>
FIG. 9 is a block diagram showing a configuration of an electrical system of the broadcast relay device of the second embodiment. As shown in FIG. 9, the broadcast relay device 110 of the second embodiment has a compensation module 19 in which a multipath module 36 and an IF delay module 38 are integrated.

<Third Embodiment>
FIG. 10 is a block diagram showing a configuration of an electrical system of the broadcast relay device of the third embodiment. As shown in FIG. 9, the broadcast relay device 210 of the third embodiment includes a compensation module 19, a transmission conversion unit 22, and a PA unit 24. In other words, the broadcast relay device 210 of the third embodiment has a configuration in which the distribution unit 14, the switching unit 26, and the control unit 28 are omitted from the broadcast relay device 110 of the second embodiment. Also in the third embodiment, the multipath unit 18 and the IF delay unit 20 may be provided instead of the compensation module 19.

<Fourth Embodiment>
FIG. 11 is a diagram showing an example of the front surface of the DCDC module 134 of the fourth embodiment. As shown in FIG. 11, a plurality of switches 161, a plurality of reset buttons 162, and a plurality of display units 170a are provided on the front surface (an example of the other side surface) of the DCDC module 134 of the fourth embodiment. ing. In this case, any or all of the switch 61, the reset button 62, and the display unit 70a of the reception conversion module 32 may be omitted. The number of switches 161 and reset buttons 162 and the number of display units 170a are the same as the number of connectable reception conversion modules 32. Each of the switch 161 and the reset button 162 and the display unit 170a are associated with any of the reception conversion modules 32.

The switch 161 receives an operation instruction for switching on / off of the corresponding reception conversion module 32.

The reset button 162 receives an operation instruction for resetting the corresponding reception conversion module 32.

The display unit 170a indicates the ON state of the corresponding reception conversion module 32.

As described above, the DCDC module 134 of the fourth embodiment has a plurality of switches 161 associated with any reception conversion module 32, a plurality of reset buttons 162, and a plurality of display units 170a. As a result, the DCDC module 134 can provide many operations at one place and can visually recognize the operation status.

The function, connection relationship, number, arrangement, etc. of each configuration of the above-described embodiment may be changed as appropriate.

For example, in the above-described embodiment, the reception conversion module 32 has been described as an example, but the same configuration as the reception conversion module 32 is applied to the transmission conversion module 40 to connect the transmission conversion module 40 and the connection unit 52. You may.

In the above-described embodiment, the configuration in which the broadcast relay device 10 includes the multipath module 36 and the IF delay module 38 has been described as an example, but the present invention is not limited thereto. For example, the multipath module 36 and the IF delay module 38 may be omitted from the broadcast relay device 10.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10: Broadcast relay device, 32: Reception conversion module (frequency conversion module), 34: DCDC module (power management unit), 40: Transmission conversion module (frequency conversion module), 42: DCDC module (power management unit), 50: Frame, 52: Connection part, 56: External power connector, 58: External reference signal connector, 60: External monitoring connector, 61: Switch (operation part), 62: Reset button (operation part), 64: RF signal connector , 66: IF signal connector, 68: Monitor connector, 70a: Display unit, 70b: Display unit, 70c: Display unit, 70d: Display unit, 72: Module side power connector, 74: Module side reference signal connector, 76: Module side monitoring connector, 78: Module side power input connector, 80: Module side power output connector, 82: Board side power input connector, 84: Board side power output connector, 86: Module power connector (first connection member) , 88: Module reference signal connector (second connection member), 90: Module monitoring connector (third connection member), 94a: Power supply wiring (first connection member), 94b: Signal wiring (second connection member) (Member), 94c: Monitoring wiring (third connector), 134: DCDC module (power management unit), 161: Switch (operation unit), 162: Reset button (operation unit), 170a: Display unit

Claims (3)

Broadcasting with a power connector that receives power, a reference signal connector that receives a reference signal for sampling relay broadcast wave signals, and a monitoring connector that outputs monitoring information that monitors its own status on one side. Multiple frequency conversion modules that convert the frequency of the wave signal,
A power management unit that has a module-side power input connector for inputting power and a module-side power output connector for outputting power to the power connector on one side, and manages power to the plurality of frequency conversion modules.
A frame body for accommodating the plurality of frequency conversion modules and the power management unit, and
A wiring board arranged on one surface of the frame, an external power connector provided on one surface of the wiring board to receive the electric power from the outside, and the reference provided on one surface of the wiring board from the outside. A connection portion having an external reference signal connector that receives a signal and an external monitoring connector that is provided on one surface of the wiring board and outputs the monitoring information to the outside.
With
The wiring board has been provided on the other surface, the substrate-side power input connector, a substrate-side power output connector, the first connecting member, second connecting member, and the third connecting member,
The board-side power input connector connects the external power connector and the module-side power input connector provided in the power management unit.
The board-side power output connector is connected to the module-side power output connector provided in the power management unit.
The first connecting member connects with said substrate-side power output connector, and said power supply connector provided to each of the plurality of frequency conversion module,
The second connecting member connects the the external reference signal connector, and the reference signal connector provided to each of the plurality of frequency conversion module,
The third connecting member, the broadcast relay device for connecting a connector for the external monitor, and the monitor connector provided to each of the plurality of frequency conversion module. Operation unit for accepting an operation of the frequency converter module, and broadcast relay device according to claim 1 having a display unit for displaying the status of the frequency conversion module. The broadcast relay device according to claim 2 , wherein the operation unit and the display unit are provided on the other surface of each of the plurality of frequency conversion modules.

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