JP2011048676A - Rack and switching hub device - Google Patents

Abstract

Provided are a rack and a switching hub that facilitate layout change in the rack.
A switching hub 30 is used in a rack in which devices configured in a rack mount type can be stacked and stored. The switching hub 30 corresponds to the case 35 having a columnar shape extending in one direction, and is arranged on the side surface of the case 35 according to the rack storage interval of the rack, and the RJ 45 connector specification RJ port 31). Have The device housed in the rack is connected to the nearest RJ port via a connection cable. The switching hub 30 transfers the data between a device connected to one RJ port and the RJ port of another device.
[Selection] Figure 3

Description

  The present invention relates to a rack for hardware storage and a switching hub device used corresponding to a device accommodated in the rack.

  Many of devices, devices, etc. (hereinafter collectively referred to as hardware) constituting a server system used in a broadcasting system, a communication system, etc., use IP (Internet Protocol) using Ethernet ((registered trademark); Ethernet (registered trademark)). ) Corresponds to the procedure. For example, in a broadcasting system, there is a trend of processing program material data as a file, and it is expected that almost all signals transmitted in the broadcasting system are converted into IP packets. In a normal server system, these IP-compatible hardware is connected to an Ethernet specification switching hub, and is connected to a higher-level aggregation device via the switching hub to constitute an IP network.

  These hardware are configured in a rack-mountable manner that can be stacked, and are often stored in a rack (shelf) such as a server rack. In the rack, rack mount type hardware can be stacked and installed to construct a server system.

  When IP-compatible hardware is stored in a rack, each piece of hardware is connected to a switching hub provided inside or outside the rack using a UTP (generally called LAN cable) of Ethernet specifications such as 10BASE-T and 100BASE-T. UnShielded Twist Pair) cable. At this time, it is desirable that the LAN cable be stored as compactly as possible. For example, in Patent Document 1, various cables for connecting hardware are stored in a case body by a cable guide groove portion, and the opening end of the case body is covered by a lid portion, so that the cable does not hang down. An information wiring rack configured to be connected is disclosed.

JP 2002-124790 A (paragraph 0023, FIG. 4)

  However, when connecting each hardware and a switching hub, it is necessary to connect each hardware to the switching hub with a LAN cable having a length corresponding to the distance from the switching hub. For this reason, if the layout of the hardware stored in the rack is to be changed, the length of the LAN cable is changed, and a complicated operation is required.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a rack and a switching hub device that facilitate layout setting and change in the rack.

  A switching hub device according to an embodiment of the present invention is a switching hub device used in a rack in which devices configured in a rack mount type can be stacked and stored, and a housing having a column shape and stored in the rack A plurality of ports connected to each other via a connection cable, the plurality of ports arranged in the longitudinal direction on the side surface of the housing in accordance with the device storage interval in the rack, and the plurality of ports And a control means for controlling the data transfer by performing a switching hub operation according to the Ethernet (registered trademark) specifications between the devices connected to the network.

  A rack according to an embodiment of the present invention is a rack that stacks and stores devices configured in a rack mount type at a predetermined storage interval in the longitudinal direction, and the rack is configured in parallel with the longitudinal direction. And a switching hub device having the rack column as a casing, the switching hub device having a plurality of ports to which devices housed in the rack are connected via connection cables. In the longitudinal direction on the side surface of the housing, Ethernet (registered trademark) specifications are established between a plurality of ports arranged in accordance with a device storage interval in the rack and devices connected to the plurality of ports. And a control means for controlling the data transfer by performing a switching hub operation.

  A rack according to an embodiment of the present invention is a rack that stores rack-mounted devices stacked in a longitudinal direction at a predetermined storage interval. The rack includes a side plate and the side plate. A switching hub device as a body, wherein the switching hub device is a plurality of ports to which devices housed in the rack are connected via connection cables, and the device housing interval in the rack on the side plate. And a control means for controlling the data transfer by performing a switching hub operation corresponding to the Ethernet (registered trademark) specifications between the plurality of ports arranged in accordance with the plurality of ports.

  According to the rack and the switching hub device according to the embodiment of the present invention, since the arrangement interval of the plurality of ports corresponds to the interval of the hardware (device) accommodated in the rack, layout setting in the rack, And it becomes easy to change.

The front view which shows an example of the external appearance of the rack used in the broadcasting system concerning one Embodiment of this invention. The figure which shows an example of the external appearance of the rack in the state which does not store hardware. The front view which shows an example of the switching hub which concerns on 1st Embodiment. 1 is a side sectional view showing an example of a switching hub according to a first embodiment. The figure which represents typically the Ethernet connection state by a switching hub when the hardware shown in FIG. 1 is accommodated in the rack. The perspective view which shows an example of the switching hub provided integrally with the pillar of the rack. The front view which shows an example of the switching hub which concerns on 2nd Embodiment. The figure which shows the cross section which looked at the RJ port which concerns on 3rd Embodiment from upper direction. The perspective view which shows an example of the switching hub which concerns on 4th Embodiment, was provided separately from the pillar of the rack, and was attached along the pillar. The figure which shows an example of the external appearance of the rack in the state which concerns on 5th Embodiment and has not accommodated the hardware.

  Hereinafter, an embodiment of a switching hub device according to the present invention will be described with reference to the drawings.

First Embodiment FIG. 1 is a front view showing an example of the appearance of a rack used in a broadcasting system according to an embodiment of the present invention. The rack 10 is a 19-inch rack standardized by, for example, the Electronic Industries Alliance (EIA). In EIA, the width of one step is defined as 19 inches (about 482.6 mm) and the height is 1.75 inches (about 44.5 mm).

  The rack 10 shown in FIG. 1 accommodates an encoder / decoder 11, a multiplexer (MUX) 12, a waveform monitor 13, a control device 14, and a blank panel 15. Various rack mount devices can be accommodated between the waveform monitor 13 and the control device 14.

  The encoder / decoder 11 includes an encoder unit that compresses a video signal and an audio signal according to the MPEG standard and generates a TS (transport stream), and a decoder unit that decompresses the TS and restores it to a video signal and an audio signal. Device.

  The multiplexing device 12 multiplexes a plurality of TSs such as a TS output from the encoder / decoder 11 and a TS output from a server that transmits a data service, and outputs the result as one broadcasting TS.

  The waveform monitor 13 includes a display or the like and is a device for monitoring the waveform of the broadcast signal.

  The control device 14 controls various hardware items stored in the rack 10. The control device 14 controls, for example, TS distribution by the encoder / decoder 11, multiplexing by the multiplexing device 12, and monitoring of broadcast signals by the waveform monitor 13.

  Note that the hardware housed in the rack 10 in FIG. 1 is shown as an example, and it goes without saying that hardware other than the above may be housed in the rack 10.

  FIG. 2 is a diagram illustrating an example of the appearance of the rack 10 in a state where no hardware is stored.

  As shown in FIG. 2, the rack 10 has four pillars 10a (# 1 to # 4) as columns, and a frame-like frame 10b is attached to the upper part and a frame 10c is similarly attached to the lower part. 10 frames are constructed. The column 10a has a hollow prismatic shape. The panel 10p is an upper lid of the rack 10.

  Between the two pillars 10a (# 2) and 10a (# 3) constituting the right side surface of the rack 10, and between the two pillars 10a (# 1) and 10a (# 4) constituting the left side surface Each may be provided with an intermediate reinforcing member 10d. Each member of these frames is a metal such as steel or aluminum.

  The storage area of the rack 10 can be divided in the longitudinal direction (vertical direction) at intervals of 1.75 inches (or an integer multiple of 1.75 inches), and a partition panel or sub (not shown) attached to the pillar 10a. Various hardware as shown in FIG. 1 is stacked and stored in a vertical direction by a device holding means such as a frame.

  Alternatively, a fixture such as a hook (not shown) is provided on the pillar 10a of the rack 10 at intervals of 1.75 inches (or intervals of integer multiples of 1.75 inches), and each hardware is held by this fixture. Alternatively, screw holes may be provided in the pillars 10a at intervals of 1.75 inches (or intervals of integer multiples of 1.75 inches), and hardware mounting portions may be screwed.

  Most of the hardware stored in the rack 10 is an IEEE 802 standard that is a standard related to LAN transmission, and generally corresponds to a specification called Ethernet (registered trademark). These IP-compatible hardware is connected to an Ethernet (registered trademark) specification switching hub, and is connected to a higher-level aggregation device via the switching hub, thereby becoming a part of the components of the IP network.

  FIG. 3 is a front view illustrating an example of the switching hub according to the present embodiment, and FIG. 4 is a side sectional view illustrating an example of the switching hub according to the present embodiment.

  The switching hub 30 shown in FIGS. 3 and 4 has a columnar housing 35 extending in one direction. The casing 35 of the switching hub 30 has a prismatic shape, and is integrated as a pillar 10a (# 1) used on the back surface of the rack 10, for example, as shown in FIG.

  One or more sides of the switching hub 30 have an RJ port 31 which is a jack of a plurality of connectors commonly referred to as RJ45 at intervals of 1.75 inches in the longitudinal direction (vertical direction) (or intervals of integer multiples of 1.75 inches). Is arranged. The RJ-45 connector is compatible with Ethernet (registered trademark) specifications such as 100BASE-T (X) and 1000BASE-T, and is attached to the end of the LAN cable and attached to the housing 35 to become the RJ port 31. A connector consisting of a jack.

  The interval L between the ports shown in FIG. 3 is represented by L = n × 1.75 (n is an arbitrary integer). Of the RJ ports 31 provided in the switching hub 30, one RJ port 31 (the lowermost port (#n) in FIG. 6) is connected to the upper line concentrator, and the remaining ports are each hardware in the rack. Ready to connect to the wearer.

  The RJ ports 31 (# 1) to (#n) are connected to a CPU 33 provided in the switching hub 30. The CPU 33 has a power supply unit (P / S) 34. The power supply unit 34 is connected to a power supply device (not shown) and supplies power for driving the CPU 33.

  The switching hub 30 is a kind of hub that performs transfer between ports including a bridge function instead of a repeater. The CPU 33 operates as a control unit that realizes various functions of the switching hub according to a program stored in a memory (not shown).

  The CPU 33 analyzes the destination MAC address of data sent from the RJ port 31 (for example, #n), and transfers the data to the RJ port 31 (for example, # 2) to which the corresponding device is connected. If necessary, the CPU 33 may automatically determine the transmission speed of the connection partner and implement an auto-negotiation function for selecting and connecting an appropriate speed.

  FIG. 5 is a diagram schematically illustrating an IP connection state by the switching hub 30 when the hardware illustrated in FIG. 1 is accommodated in the rack 10.

  Each hardware housed in the rack 10 and the switching hub 30 are connected by a LAN cable 50 having a cable length Lc. At both ends of the LAN cable 50, for example, an RJ-45 plug (RJ plug 40 in FIG. 8), which is an 8-pin modular connector that can accommodate eight conductors, is provided.

  The LAN cable is specified as a UTP (UnShielded Twist Pair) cable, but here it is referred to as a LAN cable according to a general name.

  The RJ-45 plug at one end of the LAN cable 50 is inserted into the RJ port 31 (for example, # 1) (RJ-45 jack) of the switching hub 30, and the RJ-45 plug at the other end of the LAN cable 50 is connected to the switching hub. 30 is inserted into the RJ port of the encoder / decoder 11, for example, hardware connected correspondingly.

  Signals and data transmitted and received by various hardware stored in the rack 10 such as TS sent from the encoder / decoder 11 or the multiplexer 12, the monitor signal sent from the waveform monitor 13, or the control signal sent from the control device 14 are The data is transmitted to and from the switching hub 30 via a LAN cable 50 that connects the respective hardware and the switching hub 30.

  Data transmitted to the switching hub 30 is input / output from / to the higher level aggregation device 18 via the RJ port 31 (here, #n) as necessary. The upper level aggregation device 18 is a network device such as a layer 3 switch, for example, and here, data is input and output by an external cable connected to the lowest RJ port 31 (#n) in FIG. The layer 3 switch has the functions of a switching hub and a router, and bundles a plurality of switching hubs to make IP connection with other LAN switches.

  Further, from the switching hub 30 via the LAN cable 50 and the RJ port 31, between various kinds of hardware housed in the rack 10 such as the encoder / decoder 11, the multiplexing device 12, the waveform monitor 13 and the control device 14, Various signals and data are input / output (transmitted).

  FIG. 6 is a perspective view showing an example of the switching hub 30 provided integrally with the rack pillar 10a (# 1). In FIG. 6, one column 10a (# 1) of the rack 10 in FIG. 2 and the switching hub 30 are integrally formed, and on one side surface of the column 10a (# 1) (switching hub 30). Here, the RJ ports 31 are arranged in the vertical direction at intervals of 1.75 inches.

  Various types of hardware are stacked and stored in the storage area of the rack 10 at intervals of an integral multiple of 1.75 inches in the vertical direction. In addition, RJ ports 31 are arranged at intervals of 1.75 inches in the vertical direction on one side surface of the pillar 10a (# 1) integrated with the switching hub 30.

  In this rack 10, the RJ port 31 is arranged at 1.75 inches so as to correspond to the storage interval of the hardware. Therefore, in order to connect the hardware to the nearest RJ port 31, Just select the RJ port 31 next to it. Accordingly, in consideration of the difference in the mounting position of the RJ plug in hardware, the required cable length Lc can be unified to, for example, 50 cm, and can be made equal to any hardware.

  The cable length Lc can be determined in advance based on the distance in the horizontal direction between the hardware and the switching hub 30, and there is no need to consider the distance in the vertical direction. Each hardware can be connected to the switching hub 30 by a LAN cable 50 having a predetermined length Lc prepared as a design condition in advance, so that the design is simplified.

  Therefore, for example, the hardware stored in the lower storage area is re-stored upward, or conversely, the hardware stored in the upper storage area is re-stored downward. Even when changing, the hardware can be connected to the switching hub 30 using the same 50 cm long LAN cable 50. For this reason, the complicated work of changing the length of the cable every time the layout is changed is not necessary.

  Next, another embodiment of the present invention will be described. In the following embodiments, the same parts as those in the first embodiment are denoted by corresponding reference numerals, and detailed description thereof is omitted.

Second Embodiment FIG. 7 is a front view showing an example of a switching hub according to a second embodiment.

  The switching hub 30 shown in FIG. 7 has a pillar shape and is configured integrally with the pillar 10a.

  In one (or a plurality of) side surfaces 30a of the switching hub 30 according to the second embodiment, a groove 41 is provided along the longitudinal direction (vertical direction). The side surface 30a of the switching hub 30 is provided with screw holes along the groove 41 on both sides of the groove 41 at intervals of 1.75 inches in the longitudinal direction. In the groove 41, RJ ports 31 (# 1 to #n) are disposed by being screwed into the above-described screw holes by two set screws 42. As in the first embodiment, one of the arranged RJ ports 31 (the lowermost port (#n) in FIG. 7) is connected to the upper line concentrator.

  Similar to the first embodiment, the RJ port 31 is connected to a CPU 33 provided in the switching hub 30. The CPU 33 has a power supply unit (P / S) 34 and the internal connection of the housing 35 is the same.

  On one side surface of the pillar 10a integrated with the switching hub 30, there are disposed RJ ports 31 screwed into screw holes provided at intervals of 1.75 inches in the vertical direction. For this reason, in the switching hub 30 according to the second embodiment, the necessary RJ port 31 can be attached to the switching hub 30 by the two set screws 42, and the RJ port 31 that is no longer needed is attached to the set screw 42. Can be removed from the switching hub 30. That is, the number of RJ ports 31 provided in the groove 41 can be changed as necessary. Also, the position where the RJ port 31 is attached can be changed as necessary.

  In the switching hub 30 according to the second embodiment, an appropriate number of RJ ports 31 can be attached at appropriate positions.

  In the first embodiment, a large number of RJ ports prepared in advance are required. For example, if the mounting interval is 1.75 × 2 = 3.5 inches = 8.9 cm and the hardware mounting range (height) is 160 cm, n = 18 RJ ports 31 are connected to the column 10a (# 1). ) Must be attached. As a result, the CPU 33 is also required to have a high function capable of handling 18 ports. However, even in this case, the probability that all the ports are used is low, resulting in waste.

  On the other hand, in the second embodiment, it is sufficient to provide as many RJ ports 31 as the number of accommodated hardware (about eight), which has the effect of reducing the cost of the CPU 33.

Third Embodiment FIG. 8 is a cross-sectional view showing a cross section of an RJ port 31 according to a third embodiment as viewed from above.

  The RJ port 31 shown in FIG. 8 is attached to the switching hub 30 in which the groove 41 is provided in the side face 30a as shown in FIG. This RJ port 31 has an insertion port 31a, and an RJ plug 40 of RJ-45 specification is inserted into the insertion port 31a.

  The jack serving as the RJ port 31 includes two claws 31b made of a synthetic resin such as plastic and having elasticity on both sides of the insertion port 31a. The pawl 31b bends according to the applied pressure and is inserted into a groove 41 provided on the side surface 30a of the switching hub 30. Stress (efficacy) with respect to the pressure received from the side surface 30a is generated in the pawl 31b and is held in the groove 41 by this stress. That is, the RJ plug 40 is pressed into the RJ port 31 and fixed.

  The RJ port 31 may include a stopper 31c at the tip of the pawl 31b. The stopper 31c prevents the RJ port 31 from being pushed into the groove 41 more than necessary.

  Similar to the first embodiment, the RJ port 31 is connected to a CPU 33 provided in the switching hub 30. The CPU 33 has a power supply unit (P / S) 34. It is advisable to allow a certain margin in the length of the bus connecting the RJ port and the CPU 33.

  The RJ port 31 according to the third embodiment is attached to the switching hub 30 by being press-fitted into the groove provided on the side surface 30a of the switching hub 30 by the claw 31b bent by the pressure. For this reason, the required RJ port 31 can be easily attached to the switching hub 30, and the unnecessary RJ port 31 can be easily removed.

  The number of RJ ports 31 provided in the groove 41 can be changed as necessary. Moreover, the position (interval between jacks) where the RJ port 31 is attached can be changed as necessary.

  In the switching hub 30 according to the third embodiment, an appropriate number of RJ ports 31 can be attached at appropriate positions. Further, since the mounting position of the RJ port 31 is not limited to the 1.75 inch interval, the degree of freedom in hardware layout can be further increased. Since the bus length connecting the CPU 33 and the RJ port 31 has a certain margin, the RJ arranged at an arbitrary position without changing the cable length Lc of the LAN cable 50 even if the hardware storage interval is not constant. Hardware can be connected to the port 31. For this reason, the complicated work of changing the length of the cable every time the layout is changed is not necessary.

Fourth Embodiment FIG. 9 is related to the fourth embodiment, and the switching hub 30 is provided along the column 10a. The casing 35 of the switching hub 30 is provided separately from the column 10a of the rack 10. It is a perspective view which shows an example. The switching hub 30 (that is, the housing 35) is attached along the pillar 10a (# 1).

  In FIG. 9, one column 10a of the rack 10 and the switching hub 30 are configured separately, and a casing 35 of the switching hub 30 is attached on one side surface of the column 10a. The switching hub 30 may be any of the switching hubs described in the first, second, and third embodiments.

  The switching hub 30 is attached to one side surface of the pillar 10a with, for example, an adhesive, attached with a magnet, or mechanically attached with a screw, a fixture, or the like. At the time of attachment, the position at which the switching hub 30 is attached can be finely adjusted to be attached at an optimum position for storing hardware.

  Moreover, when it attaches detachably with a magnet, an attachment tool, etc., the pillar 10a to which the switching hub 30 is attached can be changed now as needed. For this reason, the freedom degree of hardware accommodation increases further. In addition, a plurality of switching hubs 30 can be attached to each of the plurality of pillars 10a.

  Furthermore, even if a failure occurs in the switching hub 30 attached to one pillar 10a, if the switching hub 30 is separate from the pillar 10a, the switching hub 30 may be replaced later, or the switching hub 30 may be replaced. It can also be added.

Fifth Embodiment FIG. 10 is a diagram illustrating an example of the appearance of the rack 10 in a state in which hardware is not accommodated according to the fifth embodiment.

  As in the rack shown in FIG. 2, the rack 10 according to this embodiment has four pillars 10a at four corners, and a panel 10p is attached to the upper part and a frame 10c is attached to the lower part. The rack 10 has plate-like side plates (side panels) 20 on the left and right side surfaces. The switching hub 30 described in the fourth embodiment is attached to the side plate 20. Note that the casing of the switching hub 30 may be configured by a part of the side plate 20.

  The switching hub 30 may have a structure in which the two casings 35a and 35b are installed by dividing the side plate 20 into an upper part and a lower part separated by the intermediate reinforcing member 10d. In this case, each may be provided with a power supply 34, or one of them may be an extension portion to which only an RJ port portion is attached. Further, the switching hubs 30 may be arranged in two or more rows on one side plate 20.

  Furthermore, in the first embodiment, an example in which one column 10a (# 1) is a switching hub has been described. However, as in the column 10a (# 1) (# 2), each of the two columns has a switching hub function. Needless to say, it may be a combination of any of those related to the first to fifth embodiments.

  In each of the above-described embodiments, the switching hub 30 having a prismatic shape has been described. However, the shape of the switching hub 30 is not limited to this. The switching hub 30 may take a triangular prism shape or a polygonal prism shape according to the structure of the rack 10. Further, as shown in the fifth embodiment, it may be provided integrally with the side plate 20.

  In each embodiment described above, the rack 10 conforms to the EIA standard, but the size of the rack 10 is not limited to this. Various sizes of racks may be used according to the hardware to be stored.

  In each of the above-described embodiments, the RJ-45 specification corresponding to the LAN standard such as 100BASE-TX or 1000BASE-T is used as a connector for connecting the LAN cable 50 and the RJ port 31. However, a standard specification plug that is commonly used in other stored hardware may be used as the connector. The LAN standard adopted is not limited to Ethernet specifications such as 10BASE-T, 100BASE-TX, and 1000BASE-T as long as it is a common standard specification as with the connector shape.

  Further, in each of the above-described embodiments, the example in which the switching hub according to the present invention is installed in the rack used in the broadcasting system has been described, but the installation example of the switching hub is not limited to the broadcasting system. The switching hub according to the present invention may be used in a server rack used for configuring a server in a communication system, an information processing system, or the like. Alternatively, the switching hub according to the present invention can be applied to various IP network systems, such as an in-house LAN system and a wide area IP network system, without being limited to a business site.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention when it is practiced. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in one embodiment or the constituent elements shown in some embodiments are combined, they are described in the column of the problem to be solved by the invention. In the case where the problems described above can be solved and the effects described in the “Effects of the Invention” can be obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

  DESCRIPTION OF SYMBOLS 10 ... Rack, 11 ... Encoder / decoder, 12 ... Multiplexer, 13 ... Waveform monitor, 14 ... Controller, 15 ... Blank panel, 20 side plate, 31 ... RJ port, 35 ... Housing.

Claims (12)

A switching hub device used in a rack capable of stacking and storing rack-mounted devices,
A housing having a columnar shape;
A plurality of ports to which devices housed in the rack are connected via connection cables, a plurality of ports arranged in the longitudinal direction on the side surface of the housing in accordance with device housing intervals in the rack;
And a control means for controlling data transfer by performing a switching hub operation corresponding to the Ethernet (registered trademark) specifications among the devices connected to the plurality of ports.   The switching hub device according to claim 1, wherein the main body is configured integrally with a support column of the rack. The rack has side walls;
The switching hub device according to claim 1, wherein the casing is configured integrally with a side wall of the rack.   The switching hub device according to claim 1, wherein the casing is attached along a column of the rack.   The switching hub device according to claim 1, wherein the housing is attached to a side wall of the rack.   The switching hub device according to claim 1, wherein the plurality of ports are fixed to the side surface of the housing at a predetermined interval. A groove is formed in the longitudinal direction on the at least one side surface of the main body,
The switching hub device according to claim 1, wherein the plurality of ports are screwed to the side surface at a predetermined mounting interval in a state where the plurality of ports are disposed in the groove. A groove is formed in the longitudinal direction on the at least one side surface of the main body,
6. The switching hub device according to claim 1, wherein each of the plurality of ports is press-fitted into the groove at a predetermined mounting interval. A rack configured to stack and store devices configured in a rack mount type at a predetermined storage interval in the longitudinal direction,
The rack is
Hollow struts configured parallel to the longitudinal direction;
A switching hub device having the rack column as a casing;
The switching hub device is:
A plurality of ports to which devices housed in the rack are connected via connection cables, and a plurality of ports arranged in a longitudinal direction on a side surface of the housing in accordance with device housing intervals in the rack; ,
Control means for controlling the data transfer by performing a switching hub operation corresponding to the Ethernet (registered trademark) specifications between the devices connected to the plurality of ports;
A rack characterized by comprising:   The rack according to claim 9, wherein the plurality of ports are screwed to the column according to the predetermined storage interval. The plurality of ports include a jack of a connector;
The post is provided with a groove to which the jack can be attached,
The rack according to claim 9, wherein the jack is fixed by being press-fitted into the groove of the column according to the predetermined storage interval. A rack that stacks and stores devices configured in a rack mount type at predetermined storage intervals in the longitudinal direction,
The rack is
Side plates,
A switching hub device having the side plate as a casing;
The switching hub device is:
A plurality of ports to which devices stored in the rack are connected via connection cables, a plurality of ports arranged on the side plate according to device storage intervals in the rack;
Control means for controlling the data transfer by performing a switching hub operation corresponding to the Ethernet (registered trademark) specifications between the devices connected to the plurality of ports;
A rack characterized by comprising:

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