CN-122026953-A - High-speed cable error code testing machine

CN122026953ACN 122026953 ACN122026953 ACN 122026953ACN-122026953-A

Abstract

The invention provides a high-speed cable error code testing machine, and relates to the technical field of high-speed cable testing. The first test board of the test box is used for generating and/or receiving high-speed test signals, the first signal connector and the second signal connector of the MCB device are electrically connected through the second test board, and the second signal connector is connected with a piece to be tested. The high-speed cable module is provided with a plurality of signal channels and comprises a cable body, a third signal connector and a fourth signal connector, wherein the third signal connector is connected with the first test board, and the fourth signal connector is connected with the first signal connector. According to the technical scheme, the high-speed cable module with the plurality of signal channels is adopted, so that multichannel high-speed signal transmission with high density is realized, and the MCB device is arranged to transfer and match the high-speed signals, so that the multichannel high-speed signals can be reliably connected into the piece to be tested. When the MCB plate device reaches the service life or fails, the MCB plate device is only required to be replaced, so that the cost is low, and the operation is simple.

Inventors

DENG RENHUI
LIU YAN
SHAO YINAN
LIAN ZHE

Assignees

苏州联讯仪器股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (10)

1. A high-speed cable bit error tester, comprising: A test box comprising a box body and at least one first test board mounted in the box body, the first test board being for generating and/or receiving high-speed test signals; The MCB device comprises a second test board, at least one first signal connector and at least one second signal connector, wherein the first signal connector and the second signal connector are electrically connected through the second test board so as to realize signal transfer, and the second signal connector is connected with a piece to be tested; The high-speed cable module is provided with a plurality of signal channels and comprises a cable body, a third signal connector and a fourth signal connector, wherein the third signal connector and the fourth signal connector are connected to two ends of the cable body, the third signal connector is connected with the first test board, and the fourth signal connector is connected with the first signal connector.
2. The high-speed cable error tester as claimed in claim 1, wherein, Each of the first test boards is connected with the third signal connector of one of the high-speed cable modules.
3. The high-speed cable error tester as claimed in claim 2, wherein, The number of the fourth signal connectors of all the high-speed cable modules is consistent with the number of the first signal connectors, and each fourth signal connector corresponds to one first signal connector.
4. The high-speed cable error tester of any one of claims 1-3 wherein the high-speed cable module is mounted within the box, the test box further comprising: the mounting piece is mounted on one side of the box body and provided with at least one mounting groove, each mounting groove is used for mounting one fourth signal connector, and the plug-in port of the fourth signal connector is exposed out of the box body.
5. The high-speed cable error tester as claimed in claim 4, wherein, The mounting is arranged to be movable and deflectable relative to the housing in an X-direction, a Y-direction and a Z-direction.
6. The high-speed cable error tester of claim 5 wherein the test box further comprises: the MCB device is arranged to be inserted into the mounting cavity from an opening of the mounting cavity and to enable the first signal connector to be plugged with the fourth signal connector.
7. The high-speed cable error tester of claim 6 wherein the test box further comprises: And the floating assembly is arranged to adaptively float during the process of inserting the first signal connector and the fourth signal connector, so that the relative positions of the mounting piece and the fourth signal connector are adjusted.
8. The high-speed cable error tester of claim 7 wherein said mounting member is provided with at least one counterbore, each of said floating assemblies comprising: The connecting rod is arranged in the countersunk hole in a penetrating way, the tail part of the connecting rod is connected with the box body, and a gap exists between the outer wall of the connecting rod and the inner wall of the countersunk hole; the elastic piece is sleeved on the connecting rod, one end of the elastic piece is abutted against the step surface of the countersunk hole, and the other end of the elastic piece is abutted against the head of the connecting rod; In the process of inserting the first signal connector and the fourth signal connector, the elastic piece is stressed and compressed to adjust the position of the mounting piece in the inserting direction, and the mounting piece floats on a first plane perpendicular to the inserting direction, so that the position of the mounting piece on the first plane is adjusted.
9. The high-speed cable error tester as claimed in claim 7, wherein, The number of the floating assemblies is multiple, and the floating assemblies are respectively arranged on two opposite sides of the mounting piece.
10. The high-speed cable error code testing machine according to any one of claims 1 to 3, wherein a positioning column is provided on the fourth signal connector, and a positioning hole is provided on the first signal connector; in the process of inserting the first signal connector and the fourth signal connector, the positioning column penetrates through the positioning hole, so that the first signal connector and the fourth signal connector are positioned.

Description

High-speed cable error code testing machine Technical Field The invention relates to the technical field of high-speed cable testing, in particular to a high-speed cable error code testing machine. Background The Error detector (Bit Error RATE TESTER, BERT) is mainly applied to the test scene of high-speed passive devices and optical modules at present, and the number of test object channels is relatively small. With the development of artificial intelligence technology, the demand for high-speed interconnects by computing centers and data centers continues to grow. The short-distance high-speed signal transmission gradually shows a technical trend of replacing optical fibers with copper cables under the influence of factors such as energy consumption, cost and port density. In the production and test process of the passive high-speed cable, in order to meet the test requirements of multiple channels and high speed, error code test equipment with high channel density and high transmission speed is required to perform error code test on the high-speed cable. In the prior art, the following two main ways exist for the error code test of the high-speed cable: The first mode is to fan out high-speed signals through a high-speed cable, one end of the high-speed cable is connected with a code error meter, the other end of the high-speed cable is connected with a connector of a tested piece (DUT), and signal matching is achieved through a jumper mode. In this mode, cable processing and test process are comparatively complicated, and need customize the high-speed cable of different wire orders to different measured pieces, lead to the cable unit price higher, as the consumptive material has increased production test cost by showing. In the second way, fanout of high-speed signals is achieved through coaxial board-to-board connectors. However, the signal transmission loss of the mode is larger, the processing precision requirements on the PCB frame and related structural members are higher, the position precision of each component needs to be kept highly consistent after the assembly is completed, and the deformation control requirements on the PCB frame and the structural members are strict, so that the processing and assembly difficulties are increased. Therefore, the existing high-speed cable error code testing scheme still has room for improvement in the aspects of channel expansibility, cost control, assembly tolerance and the like. Disclosure of Invention The invention aims to provide a high-speed cable error code testing machine, which solves the technical problems that in the prior art, a testing scheme is complex, consumable cost is high, and a signal channel is difficult to expand in a high-density manner in the high-speed cable error code testing process. A further object of the present invention is to improve the accuracy of the mating of the first signal connector of the MCB device with the fourth signal connector of the high speed cable. In particular, the present invention provides a high-speed cable error code tester, comprising: A test box comprising a box body and at least one first test board mounted in the box body, the first test board being for generating and/or receiving high-speed test signals; The MCB device comprises a second test board, at least one first signal connector and at least one second signal connector, wherein the first signal connector and the second signal connector are electrically connected through the second test board so as to realize signal transfer, and the second signal connector is connected with a piece to be tested; The high-speed cable module is provided with a plurality of signal channels and comprises a cable body, a third signal connector and a fourth signal connector, wherein the third signal connector and the fourth signal connector are connected to two ends of the cable body, the third signal connector is connected with the first test board, and the fourth signal connector is connected with the first signal connector. Optionally, each of the first test boards is connected with the third signal connector of one of the high-speed cable modules. Optionally, the number of the fourth signal connectors of all the high-speed cable modules is identical to the number of the first signal connectors, and each fourth signal connector corresponds to one first signal connector. Optionally, the high-speed cable module is installed in the box, and the test box further includes: the mounting piece is mounted on one side of the box body and provided with at least one mounting groove, each mounting groove is used for mounting one fourth signal connector, and the plug-in port of the fourth signal connector is exposed out of the box body. Optionally, the mount is arranged to be movable and deflectable relative to the housing in the X-direction, the Y-direction and the Z-direction. Optionally, the test box further comprises: the MCB device is arranged to be inserted into the mounti