Optical fiber connection device

Abstract

The utility model provides an optical fiber connection device comprising a plurality of optical fiber distribution frames, each optical fiber distribution frame is provided with a preset number of ports, the preset number of ports comprise pre-connection ports and jumper connection ports, the pre-connection ports realize the connection between two optical fiber distribution frames through a first type of jumper wire, and the jumper connection ports realize the connection between the two optical fiber distribution frames through a second type of jumper wire. The jumper connection port can be connected with the other jumper connection port through a second type jumper wire, and one of the two jumper connection ports connected by the second type jumper wire is a port connected with the pre-connection port in advance. By adopting the technical scheme, the jumper connection path of the jumper wire can be reasonably planned.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication technical field especially relates to a kind of optical fiber connection equipment. BACKGROUND

[0002] Optical Distribution Frame (ODF) as the core infrastructure of optical fiber communication network, bears the distribution, scheduling and connection function of optical signal. By the jumper processing of multiple optical distribution frames, large-scale data center or complex communication network can be formed.

[0003] At present, the number of ports on optical distribution frame is more, and the business demand is in dynamic change state, so there is jumper phenomenon between ports. Under this background, how to reasonably plan the jumper path of jumper, becomes the technical problem that the technical personnel in the field urgently need to solve. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of optical fiber connection equipment, can reasonably plan the jumper path of jumper.

[0005] The utility model provides a kind of optical fiber connection equipment, including multiple optical distribution frames, each optical distribution frame has preset number of ports, and preset number of ports includes pre-connected port and jumper port, wherein, the pre-connected port is connected between two optical distribution frames by first type jumper, and the jumper port can be connected with another jumper port by second type jumper, and one of two jumper ports connected by the second type jumper is the port pre-connected with the pre-connected port.

[0006] Optionally, multiple optical distribution frames are three optical distribution frames, and the pre-connected port between any two optical distribution frames in three optical distribution frames is connected by the first type jumper.

[0007] Optionally, the optical distribution frame is divided into multiple connection areas, and preset number of ports is distributed in multiple connection areas, and multiple connection areas include: first external connection area, second external connection area, first optical cable access area and second optical cable access area, and first optical cable access area and second optical cable access area are located between the first external connection area and the second external connection area.

[0008] Wherein, the pre-connected port on the first external connection area of any two optical distribution frames in three optical distribution frames is connected by the first type jumper, the pre-connected port on the second external connection area of any two optical distribution frames is connected by the first type jumper, and there is at least two jumper ports on the optical distribution frame connected by the second type jumper.

[0009] Optionally, the plurality of fiber distribution frames is four fiber distribution frames, and the four fiber distribution frames include three first type fiber distribution frames and one second type fiber distribution frame, the second type fiber distribution frame is used to connect with the three first type fiber distribution frames through the first type jumpers.

[0010] Optionally, the fiber distribution frames are divided into a plurality of connection areas, and a preset number of ports are distributed in the plurality of connection areas, and the plurality of connection areas include a first external connection area, a second external connection area, a first optical cable access area, and a second optical cable access area, the first optical cable access area and the second optical cable access area are located between the first external connection area and the second external connection area.

[0011] Optionally, the first external connection area of the second type fiber distribution frame is connected with the first external connection area of the other three first type fiber distribution frames through the first type jumpers, and the first optical cable access area of the second type fiber distribution frame is configured with pre-connected ports connected with the first type fiber distribution frames of the other fiber connection devices; the second external connection area of the first type fiber distribution frame is configured with pre-connected ports connected with the second type fiber distribution frames of the other fiber connection devices.

[0012] Optionally, the second optical cable access area of the second type fiber distribution frame is connected with the second external connection area of the other three first type fiber distribution frames through the first type jumpers, and the second external connection area of the second type fiber distribution frame is configured with pre-connected ports connected with the first type fiber distribution frames of the other fiber connection devices; the second external connection area of the first type fiber distribution frame is configured with pre-connected ports connected with the second type fiber distribution frames of the other fiber connection devices.

[0013] Optionally, the number of ports of the first external connection area is 96, the number of ports of the second external connection area is 96, the number of ports of the first optical cable access area is 256, and the number of the second optical cable access areas is 128.

[0014] Optionally, the number of ports of the first external connection area is 96, the number of ports of the second external connection area is 48, the number of ports of the first optical cable access area is 288, and the number of the second optical cable access areas is 144.

[0015] Optionally, each connection area includes an interface panel, the pre-connected ports and the jumper ports are arranged on the interface panel, and the interface panel further has an identification code indicating the ports.

[0016] Optionally, the fiber connection device further includes a mounting frame, and the plurality of fiber distribution frames are placed in the frame.

[0017] A moving support is arranged inside the mounting frame, and a shell is arranged outside the mounting frame, wherein the shell divides the mounting frame into a patch panel and a bottom cabinet, and the bottom cabinet is provided with a power supply;

[0018] The interface panel and the moving support are arranged in the patch panel, and the interface panel is detachably mounted on the mounting frame.

[0019] Optionally, the fiber connection device further comprises a clamping device electrically connected with the power supply and mounted on the patch panel, and the clamping device is movable on the moving support to realize the plug-in operation of the first type jumper and / or the second type jumper.

[0020] Optionally, the jumper port comprises a first type jumper port and a second type jumper port, the second type jumper port is a port pre-connected with the pre-connected port; and the plurality of fiber distribution frames comprises a first fiber distribution frame and a second fiber distribution frame.

[0021] When the first type jumper port on the first fiber distribution frame is connected with the second type jumper port through the second type jumper, the first type jumper port can transmit signals to the second fiber distribution frame.

[0022] Compared with the prior art, the technical scheme of the utility model has the following advantages:

[0023] In the fiber connection device provided by the utility model, on one hand, the pre-connected port is arranged to realize the connection between different fiber distribution frames; on the other hand, the jumper port is arranged, and one of the connected jumper ports is pre-connected with the pre-connected port, so that when the jumper operation is needed to be performed, the second type jumper can be used to connect the two jumper ports to realize the jumper connection in the same fiber distribution frame, thereby the jumper connection path of the jumper can be reasonably planned, and the port jumper connection between different fiber distribution frames is realized. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0025] Figure 1 FIG. 1 is a structural schematic diagram of a fiber connection device according to an embodiment of the present application;

[0026] Figure 2 FIG. 2 is a regional division schematic diagram of a fiber distribution frame according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] The number of ports on the fiber distribution frame is large, and the service demand is in a dynamic change state, so there is a jumper between the ports. Therefore, when there are many jumpers, how to reasonably plan the jumper path of the jumper becomes a technical problem that technicians in the field need to solve.

[0028] And in some application scenarios, when the number of ports on the fiber distribution frame or the number of fiber distribution frames is further increased, it will be more important to reasonably plan the jumper path of the jumper.

[0029] To solve the above technical problems, the utility model provides a kind of fiber connection equipment, one aspect, by setting pre-connected port, the connection between different fiber distribution frames is realized;Another aspect, by setting jumper port, and one of the connected jumper ports is pre-connected with pre-connected port, so when the jumper operation is needed, two jumper ports can be connected by second type jumper, to realize the jumper in the same fiber distribution frame, so the jumper path of the jumper can be reasonably planned, and the port jumper between different fiber distribution frames is realized.

[0030] In order to enable those skilled in the art to better understand and implement the utility model, the following refers to the drawings, and the specific scheme, principle, advantages and effects of the utility model are described in detail through specific examples.

[0031] Reference Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a fiber connection equipment in an embodiment of the utility model, Figure 2 is a regional division schematic diagram of a fiber distribution frame in an embodiment of the utility model.

[0032] Among them, as Figure 1 indicated, the fiber connection equipment can include a plurality of one fiber distribution frame (as a non-limiting example, Figure 1 three fiber distribution frames ODF11, ODF12 and ODF13 are shown).

[0033] In this embodiment, each of the fiber distribution frames has a preset number of ports, and the preset number of ports includes pre-connected ports and jumper ports.

[0034] In other words, the ports on the fiber distribution frame of the present scheme are divided into at least two different types, so that the ports can be selectively used according to actual needs.

[0035] In this embodiment, the pre-connected port is connected between two fiber distribution frames by a first type jumper.

[0036] As an example, refer to Figure 1 Through the first type of jumper, the connection between the fiber distribution frame ODF11 and the fiber distribution frame ODF12, the fiber distribution frame ODF11 and the fiber distribution frame ODF13, and the fiber distribution frame ODF12 and the fiber distribution frame ODF13 is realized, that is, the connection between different fiber distribution frames is realized.

[0037] And by predefining the pre-connected port, it is beneficial to reduce the difficulty of connection between different fiber distribution frames, and easy to wire.

[0038] In this embodiment, the jumper port can be connected with another jumper port through the second type of jumper, and the two jumper ports connected by the second type of jumper are the port pre-connected with the pre-connected port in one of the two.

[0039] As an example, refer to Figure 2 The second type of jumper L20 in the fiber distribution frame ODF1X (wherein the fiber distribution frame ODF1X can be any one of the fiber distribution frames ODF11, ODF12 and ODF13) can connect two jumper ports therein.

[0040] More specifically, the jumper port can include a first type of jumper port (for example, Figure 2 port A) and a second type of jumper port (for example, Figure 2 port B), and the second type of jumper port is the port pre-connected with the pre-connected port.

[0041] And since the connected jumper port has been pre-connected with the pre-connected port, through the first type of jumper and the second type of jumper L20, the port jumpering between different fiber distribution frames is realized, that is, the connection between any to any ports.

[0042] In some embodiments, the plurality of fiber distribution frames includes a first fiber distribution frame and a second fiber distribution frame, and when the first type of jumper port on the first fiber distribution frame is connected with the second type of jumper port through the second type of jumper, the signal can be transmitted to the second fiber distribution frame through the first type of jumper port.

[0043] For example, refer to Figure 1 and Figure 2 The first type of jumper port A on the first fiber distribution frame ODF11 is connected with the second type of jumper port B through the second type of jumper L20, while the second type of jumper port B has been connected with the pre-connected port, and the pre-connected port is connected with the second fiber distribution frame ODF12 through the first type of jumper L12, so the signal can be transmitted to the second fiber distribution frame ODF12 through the first type of jumper port A.

[0044] It should be noted that, Figure 2 The two connected jumper ports are only for example, and are used to represent that two different jumper ports can be connected through the second type of jumper, and cannot be understood as a limitation of the utility model.

[0045] In this embodiment, then referring to Figure 1 In some embodiments, the plurality of fiber distribution frames is three fiber distribution frames (for example, Figure 1 The pre-connected ports between any two of the three fiber distribution frames are connected through the first type of jumper.

[0046] For example, the fiber distribution frame ODF11 is connected with the fiber distribution frame ODF12 through the first type of jumper L12 and / or the first type of jumper L15; the fiber distribution frame ODF11 is connected with the fiber distribution frame ODF13 through the first type of jumper L11 and / or L14; the fiber distribution frame ODF12 is connected with the fiber distribution frame ODF13 through the first type of jumper L13 and / or L16.

[0047] Thus, the jumper between different fiber distribution frames, i.e., the jumper across devices, is realized through the first type of jumper.

[0048] In this embodiment, as Figure 2 The fiber distribution frame ODF1X can be divided into a plurality of connection areas, and a preset number of ports are distributed in the plurality of connection areas.

[0049] In this embodiment, the plurality of connection areas can include a first external connection area, a second external connection area, a first optical cable access area, and a second optical cable access area.

[0050] For example, referring to Figure 2 The fiber distribution frame ODF1X can be divided into four areas, which are the first external connection area I, the second external connection area IV, and the first optical cable access area II and the second optical cable access area III.

[0051] In this embodiment, the first optical cable access area II and the second optical cable access area III are located between the first external connection area I and the second external connection area IV, and the order can be the first external connection area I, the first optical cable access area II, the second optical cable access area III, and the second external connection area IV.

[0052] Correspondingly, as an optional example, the distribution of the preset number of ports can be as follows:

[0053] The pre-connected ports can be arranged in two of the four areas (e.g., the first external connection area I and the second external connection area IV), whereby the pre-connected ports of the two areas of different fiber distribution frames can be connected by the first type of jumper.

[0054] The jumper ports can be arranged in the other two of the four areas (e.g., the first cable access area II and the second cable access area III), whereby the jumper ports of the two areas can be connected by the second type of jumper L20.

[0055] More specifically, in the case where the jumper ports include first type jumper ports A and second type jumper ports B, as shown in FIG. 1, the first type jumper ports A can be arranged in the area indicated by the dashed box G1 in the first cable access area II, and the second type jumper ports B can be arranged in the area indicated by the dashed box G2 in the second cable access area III. Figure 2

[0056] It should be noted that, first, Figure 1 and Figure 2 The number of areas and the distribution manner of the areas are only illustrative and are used to represent the roles played by the different areas of the fiber distribution frame and cannot be understood as limiting the present application; second, the distribution positions of the jumper ports and the pre-connected ports in the above examples are only illustrative and are used to represent the distribution positions of the jumper ports and the pre-connected ports. In actual work, the jumper ports and the pre-connected ports can be distributed in any one of the areas; third, by performing the partitioning operation, the wiring can be further optimized so that the jumper wires are uniformly distributed on the fiber distribution frame.

[0057] In the present embodiment, the number of ports of the first external connection area I is 96, the number of ports of the second external connection area IV is 96, the number of ports of the first cable access area II is 256, and the number of ports of the second cable access area III is 128.

[0058] In other words, any one of the fiber distribution frames has 576 ports.

[0059] It should be noted that, first, the number of ports of each connection area can be adjusted in real time, as long as the number of ports on the fiber distribution frame is consistent.

[0060] For example, in some embodiments, the number of ports of the first external connection area is 96, the number of ports of the second external connection area is 48, the number of ports of the first cable access area is 288, and the number of ports of the second cable access area is 144.

[0061] Second, the number of jumper ports and pre-connected ports can be reasonably planned according to actual application requirements. For example, in one embodiment, 1 / 3 of the ports of each fiber distribution frame are reserved as jumper ports.​

[0062] In the embodiment, when the fiber distribution frame is divided into multiple connection areas, the pre-connected ports on the first external connection area of any two of the three fiber distribution frames are connected by the first type jumper, the pre-connected ports on the second external connection area of any two of the three fiber distribution frames are connected by the first type jumper, and the two jumper ports on at least one of the fiber distribution frames are connected by the second type jumper.

[0063] For example, referring to Figure 1 , the pre-connected port on the first external connection area I of the fiber distribution frame ODF11 and the pre-connected port on the first external connection area I of the fiber distribution frame ODF12 are connected by the first type jumper L12; the pre-connected port on the first external connection area I of the fiber distribution frame ODF11 and the pre-connected port on the first external connection area I of the fiber distribution frame ODF13 are connected by the first type jumper L11; and the pre-connected port on the first external connection area I of the fiber distribution frame ODF12 is connected to the pre-connected port on the first external connection area I of the fiber distribution frame ODF13 by the first type jumper L13.

[0064] For example, the pre-connected port on the second external connection area IV of the fiber distribution frame ODF11 and the pre-connected port on the second external connection area IV of the fiber distribution frame ODF12 are connected by the first type jumper L15; the pre-connected port on the second external connection area IV of the fiber distribution frame ODF11 and the pre-connected port on the second external connection area IV of the fiber distribution frame ODF13 are connected by the first type jumper L14; and the pre-connected port on the second external connection area IV of the fiber distribution frame ODF12 is connected to the pre-connected port on the second external connection area IV of the fiber distribution frame ODF13 by the first type jumper L16.

[0065] In other words, the first cable access area II and the second cable access area III of the fiber distribution frame are not connected by the first type jumper.

[0066] In the embodiment, the at least one fiber distribution frame is four fiber distribution frames, and the four fiber distribution frames include three first type fiber distribution frames and one second type fiber distribution frame.

[0067] Correspondingly, the second type fiber distribution frame is used to connect with the three first type fiber distribution frames by the first type jumper.

[0068] In the embodiment, the fiber distribution frame is divided into multiple connection areas, a preset number of ports are distributed in the multiple connection areas, and the multiple connection areas include a first external connection area, a second external connection area, a first cable access area, and a second cable access area, the first cable access area and the second cable access area being located between the first external connection area and the second external connection area.

[0069] The distribution of the ports can refer to the aforementioned examples.

[0070] On this basis, the pre-connected ports on the first external connection area of the second type fiber distribution frame are respectively connected with the first external connection areas of the other three first type fiber distribution frames through the first type jumpers, and the first cable access area of the second type fiber distribution frame is configured with pre-connected ports connected with the first type fiber distribution frames of the other fiber connection devices; the second external connection area of the first type fiber distribution frame is configured with pre-connected ports connected with the second type fiber distribution frames of the other fiber connection devices.

[0071] Alternatively, the second cable access area of the second type fiber distribution frame is respectively connected with the second external connection areas of the other three first type fiber distribution frames through the first type jumpers, and the second external connection area of the second type fiber distribution frame is configured with pre-connected ports connected with the first type fiber distribution frames of the other fiber connection devices; the second external connection area of the first type fiber distribution frame is configured with pre-connected ports connected with the second type fiber distribution frames of the other fiber connection devices.

[0072] In the embodiment, each connection area includes an interface panel, the pre-connected ports and the jumper ports are arranged on the interface panel, and the interface panel further has an identification code indicating the ports.

[0073] In other words, the ports are arranged on the interface panel, and the interface panel has an identification code indicating the positions of the ports, so that whether the ports are occupied can be determined by detecting the identification code.

[0074] As an example, referring to Figure 2 , the fiber distribution frame ODF1X has an interface panel MB, and the pre-connected ports and the jumper ports of each area are arranged on the interface panel MB.

[0075] In the embodiment, in order to facilitate the fixation and installation of the interface panel and improve the stability of the interface panel during operation, the fiber connection device can further include a mounting frame, and the plurality of fiber distribution frames are placed in the frame.

[0076] In other words, by configuring the mounting frame, the stability of the interface panel can be improved.

[0077] It should be noted that in the embodiment, one fiber distribution frame corresponds to one interface panel.

[0078] Further, the fiber connection device can further include a mobile support arranged on the inside of the mounting frame, and a shell arranged on the outside of the mounting frame, wherein the shell divides the mounting frame into a jumper cabinet and a bottom cabinet, and the bottom cabinet is provided with a power supply.

[0079] By setting the shell, dust or other particles can be prevented from dropping to the port, and the cleanliness of the working environment is improved.

[0080] Correspondingly, the interface panel and the moving support are arranged in the fiber jumper cabinet, and the interface panel is detachably installed on the mounting frame.

[0081] In this embodiment, the shell is provided with a cabinet door, and the optical fiber distribution frame is maintained and operated by opening and closing the cabinet door.

[0082] Correspondingly, the fiber connection device can further include a contact portion arranged at the bottom of the shell and in contact with the cabinet door, a top rod in contact with the cabinet door, and an elastic member connected to the top rod at one end and to the bottom of the shell at the other end. Thus, when the cabinet door is opened, the top rod is driven to move under the action of the elastic member, so that the cabinet door can be pushed open, reducing the difficulty of opening the cabinet door. When the cabinet door is closed, the closing process of the cabinet door is relatively slow due to the contact of the elastic member, so as to reduce the influence of the opening and closing of the cabinet door on the optical fiber distribution frame.

[0083] In this embodiment, the fiber connection device can further include a clamping device electrically connected to the power supply and mounted on the fiber jumper cabinet, and the clamping device can move on the moving support to realize the plug-in operation of the first type jumper and / or the second type jumper.

[0084] It can be understood that the above describes a plurality of embodiment schemes provided by the present disclosure, and each optional mode introduced by each embodiment scheme can be combined, cross-referenced without conflict, thereby extending a plurality of possible embodiment schemes, which can be considered as disclosed and disclosed embodiment schemes of the present disclosure.

[0085] Although the embodiments of the present disclosure are disclosed as above, the present utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, and therefore the protection scope of the present utility model should be limited by the scope defined in the claims.

Claims

1. An optical fiber connection device, characterized by, The fiber distribution frame includes a plurality of fiber distribution frames, each of which has a preset number of ports, and the preset number of ports includes pre-connected ports and jumper ports, wherein the pre-connected ports are connected between two fiber distribution frames by first type jumpers, and the jumper ports are connected with another jumper port by second type jumpers, and one of the two jumper ports connected by the second type jumpers is a port pre-connected with the pre-connected port.

2. The fiber optic connection apparatus of claim 1, wherein, The plurality of fiber distribution frames is three fiber distribution frames, and the pre-connected ports between any two of the three fiber distribution frames are connected by the first type jumpers.

3. The fiber optic connection apparatus of claim 2, wherein, The fiber distribution frame is divided into a plurality of connection areas, and the preset number of ports are distributed in the plurality of connection areas, and the plurality of connection areas include a first external connection area, a second external connection area, a first optical cable access area, and a second optical cable access area, and the first optical cable access area and the second optical cable access area are located between the first external connection area and the second external connection area. The pre-connected ports on the first external connection area of any two of the three fiber distribution frames are connected by the first type jumpers, the pre-connected ports on the second external connection area of any two of the three fiber distribution frames are connected by the first type jumpers, and there are at least two jumper ports on one of the fiber distribution frames connected by the second type jumpers.

4. The fiber optic connection apparatus of claim 1, wherein, The plurality of fiber distribution frames is four fiber distribution frames, and the four fiber distribution frames include three first type fiber distribution frames and one second type fiber distribution frame, and the second type fiber distribution frame is used to connect with the three first type fiber distribution frames by the first type jumpers.

5. The fiber optic connection apparatus of claim 4, wherein, The fiber distribution frame is divided into a plurality of connection areas, and the preset number of ports are distributed in the plurality of connection areas, and the plurality of connection areas include a first external connection area, a second external connection area, a first optical cable access area, and a second optical cable access area, and the first optical cable access area and the second optical cable access area are located between the first external connection area and the second external connection area. The pre-connected ports on the first external connection area of the second type fiber distribution frame are respectively connected with the first external connection areas of the other three first type fiber distribution frames by the first type jumpers, the first optical cable access area of the second type fiber distribution frame is configured with pre-connected ports connected with the first type fiber distribution frames of the other fiber connection devices; the second external connection area of the first type fiber distribution frame is configured with pre-connected ports connected with the second type fiber distribution frame of the other fiber connection device. Alternatively, the second optical cable access area of the second type fiber distribution frame is respectively connected with the second external connection areas of the other three first type fiber distribution frames by the first type jumpers, the second external connection area of the second type fiber distribution frame is configured with pre-connected ports connected with the first type fiber distribution frames of the other fiber connection devices; the second external connection area of the first type fiber distribution frame is configured with pre-connected ports connected with the second type fiber distribution frame of the other fiber connection device.

6. The fiber optic connection apparatus of claims 3 or 5, wherein, The first external connection area has 96 ports, the second external connection area has 96 ports, the first cable access area has 256 ports, and the second cable access area has 128 ports. Alternatively, the first external connection area has 96 ports, the second external connection area has 48 ports, the first cable access area has 288 ports, and the second cable access area has 144 ports.

7. The fiber optic connection apparatus of claim 1, wherein, Each connection area includes an interface panel, the pre-connected ports and the jumper ports are arranged on the interface panel, and the interface panel has an identification code indicating the ports.

8. The fiber optic connection apparatus of claim 7, wherein, Further comprising: a mounting frame in which the plurality of fiber distribution frames are placed; a mobile support arranged inside the mounting frame and a housing arranged outside the mounting frame, wherein the housing divides the mounting frame into a jumper cabinet and a bottom cabinet, and the bottom cabinet is provided with a power supply; wherein the interface panel and the mobile support are arranged in the jumper cabinet, and the interface panel is detachably mounted on the mounting frame.

9. The fiber optic connection apparatus of claim 8, wherein, Further comprising: a clamping device electrically connected to the power supply and mounted on the jumper cabinet, the clamping device being movable on the mobile support to realize the plug-in operation of the first type of jumper and / or the second type of jumper.

10. The fiber optic connection apparatus of claim 1, wherein, The jumper ports include first type jumper ports and second type jumper ports, and the second type jumper ports are pre-connected to the pre-connected ports; the plurality of fiber distribution frames include first fiber distribution frames and second fiber distribution frames; When the first type jumper ports on the first fiber distribution frames are connected to the second type jumper ports through the second type jumpers, signals can be transmitted to the second fiber distribution frames through the first type jumper ports.

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