Anti-crosstalk storage fiber switch port isolation module

Abstract

The utility model belongs to network equipment technical field especially relates to a kind of storage fiber switch port isolation module of preventing signal crosstalk, its characterized in that, circuit board is located in the space of shell body and lower cover package, and one end of circuit board is equipped with transmitting diode and receiving diode side by side, and the other end of circuit board is equipped with gold finger plug;Copper foil isolation vertical band is equipped between transmitting circuit and receiving circuit, copper foil isolation horizontal band is equipped between transmitting circuit, receiving circuit and gold finger plug, copper foil isolation vertical band and copper foil isolation horizontal band form cross copper foil band, cross copper foil band position corresponding shell body is equipped with cross isolation rib, after installation, the lower edge of isolation rib is closely combined with cross copper foil band.The utility model has the advantages that: the circuit board of sending end and receiving end is covered in the space with shielding effect respectively, isolation effect is long-term stable, and it is helpful to improve the working reliability of storage fiber switch.

Description

Technical Field

[0001] This utility model belongs to the field of network equipment technology, and in particular relates to a storage fiber optic switch port isolation module for preventing signal crosstalk. Background Technology

[0002] A fiber optic switch is a high-speed network transmission relay device, also known as a Fibre Channel switch or SAN switch. Compared to ordinary switches, it uses fiber optic cable as the transmission medium. The advantages of fiber optic transmission are high speed and strong anti-interference capability. There are two main types of fiber optic switches: one is the FC switch used to connect storage, and the other is an Ethernet switch with fiber optic interfaces. These interfaces look the same as ordinary electrical interfaces, but the interface type is different. The Escon interface, designed by IBM, can support a data rate of 200 MB / s in full-duplex mode over fiber optics. This is typically the interface for connecting server hosts or SAN switches. Depending on the configuration, the transmission distance supported by the Escon interface can reach 3 to 10 kilometers, depending on the quality of the fiber and the product characteristics.

[0003] Chinese invention patent application number 201410198632.3 discloses a full-duplex to half-duplex converter and conversion method, solving the problem of data loss or high bit error rate when a data processing card using RS422 serial communication communicates directly with a signal acquisition card using RS485 serial communication. A tri-state gate integrated circuit is set between the half-duplex signal acquisition module and the full-duplex data processing module, achieving physical isolation between the transmitting and receiving ends of the data processing card's RS422 serial port. The software-implemented functional modules solve the compatibility problem between full-duplex and half-duplex port communication by querying the receiving module's data feedback flag, eliminating data loss and bit error rate issues and ensuring the accuracy of data transmission and reception. While this solution achieves good isolation by using a tri-state gate integrated circuit, its drawback is that the tri-state gate integrated circuit is susceptible to unexpected failure due to the reliability of the integrated circuit itself, posing a risk to the safe operation of the switch. Utility Model Content

[0004] The purpose of this invention is to provide a storage fiber optic switch port isolation module that prevents signal crosstalk, overcoming the shortcomings of the prior art. The storage fiber optic switch port isolation module sets up a purely physical isolation zone, covering the circuit boards of the transmitting end and the receiving end in a shielded space. It is not affected by the reliability of electronic isolation devices, does not require regular maintenance, and the isolation effect is stable over a long period of time, providing support for the long-term safe and stable operation of the storage fiber optic switch.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] A storage fiber optic switch port isolation module for preventing signal crosstalk includes a circuit board, a housing, and a lower cover. The circuit board is located within the space enclosed by the housing and the lower cover. The circuit board is a double-sided printed circuit board. A transmitting diode and a receiving diode are mounted side by side on one end of the circuit board, and a gold finger connector is provided on the other end of the circuit board. The circuit containing the transmitting diode is the transmitting circuit, and the circuit containing the receiving diode is the receiving circuit. A copper foil isolation longitudinal strip is provided between the transmitting circuit and the receiving circuit, and a copper foil isolation transverse strip is provided between the transmitting circuit, the receiving circuit, and the gold finger connector. The copper foil isolation longitudinal strip and the copper foil isolation transverse strip form a cross-shaped copper foil strip. A cross-shaped isolation rib is provided on the housing corresponding to the position of the cross-shaped copper foil strip. After installation, the lower edge of the isolation rib is tightly fitted with the cross-shaped copper foil strip.

[0007] Furthermore, the circuit board has a copper or aluminum plate interlayer.

[0008] Furthermore, the outer shell is a metal shell.

[0009] Furthermore, the outer shell is a plastic shell, and a metal layer is deposited on the inner surface of the plastic shell.

[0010] Furthermore, the transmitting diode, receiving diode, and gold finger connector all protrude from the housing.

[0011] Furthermore, the gold finger plug is compatible with the PCB gold finger slot.

[0012] Furthermore, the outer shell and the lower cover are encapsulated using a dispensing adhesive structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By setting up a purely physical isolation zone in the port isolation module of the storage fiber optic switch, the circuit boards of the transmitting and receiving ends are respectively covered in a shielded space. The isolation effect is not affected by the reliability of electronic isolation devices, and no regular maintenance is required. The isolation effect can remain stable for a long time, which provides support for the long-term safe and stable operation of the storage fiber optic switch and helps to improve the working reliability of the storage fiber optic switch.

[0015] This isolation structure can also be used in other circuit module designs, and it is easy to combine and has reliable performance. Attached Figure Description

[0016] Figure 1 External three-dimensional structural schematic diagram of an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the circuit board structure in an embodiment of the utility model;

[0018] Figure 3Schematic diagram of the purely physical isolation zone in the embodiment of the utility model;

[0019] In the diagram: 1-Circuit board, 2-Outer casing, 3-Lower cover, 4-Emitting diode, 5-Receiving diode, 6-Gold finger connector, 7-Emitting circuit, 8-Receiving circuit, 9-Copper foil isolation strip, 10-Copper foil isolation strip, 11-Isolation rib, 12-Interlayer. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the specific embodiments used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of this utility model. For those skilled in the art, other specific embodiments can be obtained based on these specific embodiments without creative effort.

[0022] The components of the present invention described and shown in the specific embodiments herein can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the specific embodiments is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] See Figure 1-3This is a schematic diagram of the structure of a storage fiber optic switch port isolation module for preventing signal crosstalk according to this utility model. It includes a circuit board 1, a housing 2, and a lower cover 3. The circuit board 1 is located in the space enclosed by the housing 2 and the lower cover 3. The circuit board 1 is a double-sided printed circuit board. A transmitting diode 4 and a receiving diode 5 are mounted side by side on one end of the circuit board 1. A gold finger plug 6 is provided on the other end of the circuit board 1. The transmitting diode 4, the receiving diode 5, and the gold finger plug 6 all protrude from the housing 2. The circuit containing the transmitting diode 4 is the transmitting circuit 7, and the circuit containing the receiving diode 5 is the receiving circuit 8. A copper foil vertical isolation strip 9 is provided between the transmitting circuit 7 and the receiving circuit 8, and a copper foil horizontal isolation strip 10 is provided between the transmitting circuit 7, the receiving circuit 8 and the gold finger plug 6. The copper foil vertical isolation strip 9 and the copper foil horizontal isolation strip 10 form a cross-shaped copper foil strip. A cross-shaped isolation rib 11 is provided on the outer casing 2 corresponding to the position of the cross-shaped copper foil strip. After installation, the lower edge of the isolation rib 11 is tightly attached to the cross-shaped copper foil strip, and a purely physical isolation area is formed between the isolation rib 11 and the cross-shaped copper foil strip. The circuit boards of the transmitting end and the receiving end are respectively covered in a space with a shielding effect. Thus, the isolation effect of the module is no longer affected by the reliability of the electronic isolation device, and no regular maintenance is required, so that the isolation effect can be kept stable for a long time.

[0024] To further improve the isolation effect, a copper or aluminum plate interlayer 12 can be provided inside the circuit board 1.

[0025] To ensure reliable isolation of the module from the electric field of the external environment, the outer casing 2 is made of metal or plastic, but the inner surface of the plastic casing is deposited with a metal layer with a thickness of 0.05-0.1μm, and the deposited metal is mostly nickel or gold.

[0026] In this embodiment, the gold finger plug 6 is matched with the PCB gold finger slot on the device motherboard, which has good versatility.

[0027] To ensure the long-term stability of the module product quality, a dispensing encapsulation structure is used for the outer shell 2 and the lower cover 3 to prevent moisture or dust from entering and affecting the stable operation of the circuit.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A storage fiber optic switch port isolation module for preventing signal crosstalk, characterized in that, The device includes a circuit board, a housing, and a bottom cover. The circuit board is located within the space enclosed by the housing and the bottom cover. The circuit board is a double-sided printed circuit board. One end of the circuit board has a transmitting diode and a receiving diode mounted side by side, and the other end of the circuit board has a gold finger connector. The circuit containing the transmitting diode is the transmitting circuit, and the circuit containing the receiving diode is the receiving circuit. A copper foil isolation longitudinal strip is provided between the transmitting circuit and the receiving circuit, and a copper foil isolation transverse strip is provided between the transmitting circuit, the receiving circuit, and the gold finger connector. The copper foil isolation longitudinal strip and the copper foil isolation transverse strip form a cross-shaped copper foil strip. The housing has a cross-shaped isolation rib on the corresponding position of the cross-shaped copper foil strip. After installation, the lower edge of the isolation rib is tightly attached to the cross-shaped copper foil strip.

2. The anti-signal crosstalk storage fiber optic switch port isolation module according to claim 1, characterized in that, The circuit board has a copper or aluminum plate interlayer.

3. The anti-signal crosstalk storage fiber optic switch port isolation module according to claim 1, characterized in that, The outer shell is a metal shell.

4. The anti-signal crosstalk storage fiber optic switch port isolation module according to claim 1, characterized in that, The outer shell is a plastic shell, and a metal layer is deposited on the inner surface of the plastic shell.

5. The anti-signal crosstalk storage fiber optic switch port isolation module according to claim 1, characterized in that, The transmitting diode, receiving diode, and gold finger connector all protrude from the housing.

6. The anti-signal crosstalk storage fiber optic switch port isolation module according to claim 1, characterized in that, The gold finger plug is matched with the PCB gold finger slot.

7. The anti-signal crosstalk storage fiber optic switch port isolation module according to claim 1, characterized in that, The outer shell and the lower cover are encapsulated with adhesive.

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