JP3067528U - Protector for network equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] When connecting a large number of protectors to a network device, it has conventionally been cluttered and unsightly. SOLUTION: An eight-core modular jack 2 is provided at both ends of a cylindrical body, and both are connected by an eight-core signal line, and the signal lines are branched respectively.
In the protector 1 for a network device connected to the semiconductor arresters SA1 and SA2 via the wire 4 and further connected to the ground terminal E, a concave portion 3 having a predetermined width in the axial direction is formed in the central portion of the side surface of the cylindrical body, The earth terminal screw 4 is screwed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a protector for a network device used to protect a personal computer, a server, a router, a hub, and other peripheral devices from a lightning surge voltage / current that has invaded a communication line such as a LAN or a WAN.

[0002]

[Prior art]

 Conventionally, as a protector for a network device, a protector having a circuit configuration shown in FIG. 10 is already known. This is achieved by arranging an eight-core modular jack MJ at each end, connecting the two with an eight-core signal line, branching each, and connecting the semiconductor arresters SA1 and SA2 via diode bridges D1 to D4. , And to the ground terminal E. In use, a modular cable 22 is connected between one modular jack and the device 21 to be protected, as shown in FIG. Next, the communication line 23 is connected to the other modular jack. Further, the ground terminal on the side surface of the main body of the protector 1 ′ and the frame ground FG of the device 21 to be protected are connected with the ground wire 24 in the shortest and linear manner. The basic operation of the protector is as follows. When the voltage between each modular jack MJ (each communication line) and the ground terminal E exceeds a predetermined value due to a lightning surge, the semiconductor arrester SA operates, and abnormal voltage / current Escape to the ground.

[0003]

[Problems to be solved by the invention]

 By the way, in the above example, a protector is connected for each device to be protected. However, as shown in FIG. 12, when a protector is connected to a LAN or WAN using a network device such as a HUB or a router. In some cases, a large number of protectors 1 'may be centrally arranged and connected in one place. As a result, the arrangement of each protector 1 'became messy, and it was difficult to inspect and sometimes looked unsightly. Therefore, when connecting a large number of security devices to one network device, such as when connecting to a HUB or a router, etc., we propose a security device that can arrange the security devices in an orderly manner. Assigned.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, modular jacks are provided at both ends of a cylindrical body, respectively, and both of them are connected by a signal line, the signal lines are branched, and a diode bridge is formed. In the protector for network equipment connected to the semiconductor arrester via the ground and further connected to the ground terminal, a recess with a predetermined width in the axial direction was formed in the center of the side surface of the cylinder, and the ground terminal screw was screwed into the center. It is characterized by:

[0005]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of the protector for a network device according to the present invention, FIG. 2 is a front view thereof, FIG. 3 is a bottom view, FIG. 4 is a side view, FIG. 5 is a sectional view taken along line AA of FIG. FIG. 3 is a sectional view taken along line BB of FIG. 2. As shown in these figures, the protector 1 is formed of a cylindrical container having an elliptical cross section, and is provided with a modular jack 2 having eight cores at both ends. A concave portion 3 having a predetermined width in the axial direction is formed in a lower central portion of the side surface, and a ground terminal screw 4 is screwed into the central portion. Further, a groove 5 is formed on an extension of the center line of the concave portion 3 parallel to the axial direction. Between the modular jack 2 and the ground terminal screw 4, the components of the circuit of FIG. 10 described above are connected to form a protector.

Next, an example of use will be described. 7 (a) and 7 (b) show an example in which a protector is attached to a HUB installed on a LAN rack, and FIG. 8 is an enlarged view of a main part of FIG. 7 (a). 9 is a plan view of FIG. 8 as viewed from above. In the figure, reference numeral 6 denotes a LAN rack, in which a HUB 7 is installed, and a ground bar 8 is provided in a horizontal direction in front of the HUB 7. Mounting holes 9 are formed in the earth bar 8 at regular intervals.

The protector 1 is placed on the earth bar 8 while fitting the concave portion 3 thereof, and then the earth terminal screw 4 is inserted from below the hole 9 and screwed in and fixed. Fixed to The width of the earth bar 8 is equal to or slightly smaller than the width of the recess 3 of the protector 1. The pitch of the holes 9 for mounting the earth bar 8 is slightly wider than the width of the protector 1. Reference numerals 11 and 12 in the drawing denote fittings for attaching the earth bar 8 to the RAN rack 6.

When a plurality of protectors 1 are arranged in a row on the earth bar 8 of the LAN rack 6 in this manner, as shown in a side view of FIG. The HUB 7 and the modular jack 2 on the near side are connected by a modular cable 23 to a terminal device (device to be protected) (not shown). As a result, a plurality of protectors 1 are neatly arranged in a row below the HUB 7. The protector according to the present invention can be used independently by using a ground wire as shown in FIG. 11 in addition to being mounted on the ground bar 8. In this case, the groove 5 serves as a guide groove for the ground wire.

[0009]

[Effect of the invention]

 As described above, according to the present invention, a recess is formed at the center of the side surface of the cylindrical body, and a ground terminal screw is screwed into the center of the recess, so that an earth bar that matches the recess is formed at the mounting partner. The protector is fixed by fitting the recess of the protector into it and screwing the ground terminal screw from above the ground bar. As a result, it becomes possible to arrange the protectors at predetermined intervals on the earth bar. This also makes it possible to arrange security devices in a line even when many security devices are connected to network devices such as HUBs and routers.

[Brief description of the drawings]

FIG. 1 is a plan view of a protector for a network device according to the present invention.

FIG. 2 is a front view of the protector for a network device according to the present invention.

FIG. 3 is a bottom view of the network device protector according to the present invention;

FIG. 4 is a side view of the network device protector according to the present invention;

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a sectional view taken along line BB of FIG. 2;

FIG. 7 is an external view showing an example of attachment.

FIG. 8 is an enlarged view of a main part of FIG. 7;

9 is a plan view of FIG. 8 as viewed from above.

FIG. 10 is a circuit diagram of a protector for a network device.

FIG. 11 is a perspective view showing an example of mounting a protector.

FIG. 12 is a diagram illustrating an example of connection to a network.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Protector 2 Modular jack 3 Concave part 4 Ground terminal screw 5 Groove 6 LAN rack 7 HUB 8 Ground bar 9 Mounting holes 11, 12 Metal fittings

Claims (1)

[Utility model registration claims] 1. A modular jack is provided at both ends of a cylindrical body, these two are connected by a signal line, the signal lines are branched, respectively, connected to a semiconductor arrester via a diode bridge, and further connected to a ground terminal. A protector for a network device, wherein a protector having a predetermined width in the axial direction is formed in a central portion of a side surface of the cylindrical body, and a ground terminal screw is screwed into the central portion.